WO2024096512A1 - Method and device for improved measurement reporting for unmanned flight terminal in wireless communication system - Google Patents

Method and device for improved measurement reporting for unmanned flight terminal in wireless communication system Download PDF

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Publication number
WO2024096512A1
WO2024096512A1 PCT/KR2023/017097 KR2023017097W WO2024096512A1 WO 2024096512 A1 WO2024096512 A1 WO 2024096512A1 KR 2023017097 W KR2023017097 W KR 2023017097W WO 2024096512 A1 WO2024096512 A1 WO 2024096512A1
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Prior art keywords
cell
terminal
measurement
cells
satisfied
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PCT/KR2023/017097
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French (fr)
Korean (ko)
Inventor
유정석
정상엽
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삼성전자 주식회사
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Publication of WO2024096512A1 publication Critical patent/WO2024096512A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C39/00—Aircraft not otherwise provided for
    • B64C39/02—Aircraft not otherwise provided for characterised by special use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications

Definitions

  • the present disclosure relates generally to wireless communication systems, and more specifically to improved measurement reporting methods and devices for unmanned flying terminals in wireless communication systems.
  • 5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave.
  • 'Sub 6GHz' sub-6 GHz
  • mm millimeter wave
  • Wave ultra-high frequency band
  • 6G mobile communication technology which is called the system of Beyond 5G
  • Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.
  • ultra-wideband services enhanced Mobile BroadBand, eMBB
  • ultra-reliable low-latency communications URLLC
  • massive machine-type communications mMTC
  • numerology support multiple subcarrier interval operation, etc.
  • dynamic operation of slot format initial access technology to support multi-beam transmission and broadband
  • definition and operation of BWP Band-Width Part
  • New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information
  • L2 pre-processing L2 pre-processing
  • dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.
  • V2X Vehicle-to-Everything
  • NR-U New Radio Unlicensed
  • UE Power Saving NR terminal low power consumption technology
  • NTN Non-Terrestrial Network
  • IAB provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links.
  • Intelligent factories Intelligent Internet of Things, IIoT
  • Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover
  • 2-step Random Access (2-step RACH for simplification of random access procedures)
  • Standardization in the field of wireless interface architecture/protocol for technologies such as NR is also in progress
  • a 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.
  • NFV Network Functions Virtualization
  • SDN Software-Defined Networking
  • FD-MIMO full dimensional MIMO
  • array antennas to ensure coverage in the terahertz band of 6G mobile communication technology.
  • multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end.
  • the present disclosure seeks to more efficiently provide a measurement report message transmitted by an unmanned flight terminal by providing a method and device for transmitting a measurement report message for an unmanned flight terminal in a wireless communication system.
  • a method performed by a terminal in a wireless communication system in which a first measurement setting includes information about the number of triggering cells for which an event must be satisfied in order to trigger a measurement report from the base station.
  • the present disclosure to solve the above problems is a method performed by a base station in a wireless communication system, in which a first measurement setting including information about the number of triggering cells that must be satisfied with an event to trigger a measurement report is provided to the terminal. Transferring to; If the event is satisfied for at least one cell, receiving the measurement report based on information about the number of triggering cells from the terminal; Characterized by transmitting a second measurement setting including information instructing not to delete the entry in the measurement report to the terminal.
  • the present disclosure to solve the above problems includes a transmitter and receiver in a base station in a wireless communication system; and a control unit connected to the transceiver unit, wherein the control unit transmits to the terminal a first measurement setting including information on the number of triggering cells in which an event must be satisfied in order to trigger a measurement report, and transmits a first measurement setting to the terminal, and transmits a first measurement setting to the terminal, If the event is satisfied, the measurement report based on the information about the number of triggering cells is received from the terminal, and a second measurement setting including information instructing not to delete the entry in the measurement report is sent to the terminal. Characterized by transmission.
  • the base station can set a list of cells that can be additionally considered when determining whether to report measurement of the terminal.
  • the terminal may simultaneously transmit the signal strength measurement results of cells included in the list of cells set by the base station and the signal strength measurement results of cells not included in the list of cells set by the base station.
  • Figure 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram illustrating a wireless protocol structure in an LTE system according to an embodiment of the present disclosure.
  • Figure 3 is a diagram showing the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • FIG. 5 is a diagram illustrating a procedure in which a UAV (uncrewed aerial vehicle) terminal transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • UAV uncrewed aerial vehicle
  • FIG. 6 is a diagram illustrating an example in which the efficiency of handover or interference mitigation is reduced when a UAV terminal transmits a measurement report to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 7 is a diagram illustrating a process in which a UAV terminal transmits a measurement report for a specific cell to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 8 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 9 is a diagram illustrating a process in which a UAV terminal efficiently transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 10 is a diagram illustrating a process in which a UAV terminal transmits a measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • FIG. 11 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 12 is a diagram illustrating a process in which a UAV terminal transmits a measurement report by changing measurement report settings to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 13 is a diagram illustrating a process in which a base station transmits an improved measurement report setting change to a UAV terminal in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 14 is a diagram illustrating a process in which a UAV terminal changes reportOnLeave according to conditions in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • Figure 15 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.
  • Figure 16 is a diagram showing the structure of a terminal according to an embodiment of the present disclosure.
  • New Radio NR
  • 3GPP 3rd Generation Partnership Project
  • Packet Core 5G System Packet Core 5G System
  • core network 5G
  • 5G 5G
  • NG Core Next Generation Core
  • the main gist of the present disclosure can be applied to other communication systems with similar technical background with slight modifications without significantly departing from the scope of the present disclosure. It is possible, and this will be possible at the discretion of a person skilled in the technical field of the present disclosure.
  • connection node terms referring to network entities, terms referring to messages, terms referring to the interface between network entities, and various identification information. Terms referring to these are exemplified for convenience of explanation. Therefore, it is not limited to the terms used in the present disclosure, and other terms referring to objects having equivalent technical meaning may be used.
  • the base station is the entity that performs resource allocation for the terminal and may be at least one of gNode B, eNode B, Node B, BS (Base Station), wireless access unit, base station controller, or node on the network.
  • a terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions.
  • UE user equipment
  • MS mobile station
  • UL uplink
  • UL refers to a wireless transmission path of a signal transmitted from a terminal to a base station.
  • each block of the processing flow diagrams and combinations of the flow diagram diagrams can be performed by computer program instructions.
  • These computer program instructions can be mounted on a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, so that the instructions performed through the processor of the computer or other programmable data processing equipment are described in the flow chart block(s). It creates the means to perform functions.
  • These computer program instructions may also be stored in computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular manner, so that the computer-usable or computer-readable memory
  • the instructions stored in may also produce manufactured items containing instruction means that perform the functions described in the flow diagram block(s).
  • Computer program instructions can also be mounted on a computer or other programmable data processing equipment, so that a series of operational steps are performed on the computer or other programmable data processing equipment to create a process that is executed by the computer, thereby generating a process that is executed by the computer or other programmable data processing equipment. Instructions that perform processing equipment may also provide steps for executing the functions described in the flow diagram block(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s).
  • the term ' ⁇ unit' used in this embodiment refers to software or hardware components such as FPGA (field programmable gate array) or ASIC (Application Specific Integrated Circuit), and the ' ⁇ unit' performs certain roles. do.
  • ' ⁇ part' is not limited to software or hardware.
  • the ' ⁇ part' may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Therefore, as an example, ' ⁇ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components and 'parts' may be combined into a smaller number of components and 'parts' or may be further separated into additional components and 'parts'.
  • the components and 'parts' may be implemented to reproduce one or more central processing units (CPUs) within a device or a secure multimedia card.
  • ' ⁇ part' may include one or more processors.
  • 5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave.
  • 'Sub 6GHz' sub-6 GHz
  • mm millimeter wave
  • Wave ultra-high frequency band
  • 6G mobile communication technology which is called the system of Beyond 5G
  • Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.
  • ultra-wideband services enhanced Mobile BroadBand, eMBB
  • ultra-reliable low-latency communications URLLC
  • massive machine-type communications mMTC
  • numerology support multiple subcarrier interval operation, etc.
  • dynamic operation of slot format initial access technology to support multi-beam transmission and broadband
  • definition and operation of BWP Band-Width Part
  • New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information
  • L2 pre-processing L2 pre-processing
  • dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.
  • V2X Vehicle-to-Everything
  • NR-U New Radio Unlicensed
  • UE Power Saving NR terminal low power consumption technology
  • NTN Non-Terrestrial Network
  • IAB provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links.
  • Intelligent factories Intelligent Internet of Things, IIoT
  • Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover
  • 2-step Random Access (2-step RACH for simplification of random access procedures)
  • Standardization in the field of wireless interface architecture/protocol for technologies such as NR is also in progress
  • a 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.
  • NFV Network Functions Virtualization
  • SDN Software-Defined Networking
  • FD-MIMO full dimensional MIMO
  • array antennas to ensure coverage in the terahertz band of 6G mobile communication technology.
  • multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end.
  • FIG. 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
  • the radio access network of the LTE system includes an LTE base station (evolved node B, hereinafter referred to as LTE eNB, eNB or base station) (115, 120, 125, 130) and an MME (105, mobility management entity). and S-GW (110, serving-gateway).
  • LTE base station evolved node B, hereinafter referred to as LTE eNB, eNB or base station
  • MME mobility management entity
  • S-GW 110, serving-gateway
  • UE or terminal User equipment 135 may access an external network through the eNBs 115, 120, 125, 130 and the S-GW 110.
  • eNBs 115, 120, 125, and 130 may correspond to Node B of the UMTS system.
  • the eNB 115 is connected to the UE 135 through a wireless channel and can perform a more complex role than the Node B.
  • all user traffic including real-time services such as VoIP (voice over IP) through the Internet protocol, is serviced through a shared channel, so status information such as buffer status of UEs, available transmission power status, and channel status
  • a device that collects and performs scheduling is required, and the eNB (115, 120, 125, 130) can be responsible for this.
  • One eNB can usually control multiple cells.
  • the LTE system can use orthogonal frequency division multiplexing (OFDM) as a wireless access technology in, for example, a 20 MHz bandwidth.
  • OFDM orthogonal frequency division multiplexing
  • AMC adaptive modulation & coding
  • the S-GW (110) is a device that provides data bearers, and can create or remove data bearers under the control of the MME (105).
  • the MME 105 is a device responsible for various control functions as well as mobility management functions for the terminal and can be connected to a plurality of eNBs.
  • Figure 2 is a diagram illustrating a wireless protocol structure in an LTE system according to an embodiment of the present disclosure.
  • the wireless protocols of the LTE system include PDCP (packet data convergence protocol, 205, 240), RLC (radio link control, 210, 235), and MAC (medium access control, 215, 230) in the terminal and eNB, respectively. It consists of PDCP (205, 240) may be responsible for operations such as IP header compression/restoration. PDCP may include one or more of the following functions:
  • the RLCs 210 and 235 can perform ARQ operations, etc. by reconfiguring the PDCP PDU (protocol data unit) to an appropriate size.
  • RLC may include one or more of the following functions:
  • RLC SDU deletion function (RLC SDU discard (only for UM and AM data transfer)
  • RLC re-establishment or, re-establishment function (RLC re-establishment)
  • the MAC (215, 230) is connected to several RLC layer devices configured in one terminal, and can perform operations of multiplexing RLC PDUs to MAC PDUs and demultiplexing RLC PDUs from MAC PDUs.
  • a MAC may include one or more of the following functions:
  • the physical layer (PHY, 220, 225) channel-codes and modulates upper-layer data, creates OFDM symbols and transmits them over a wireless channel, or demodulates and channel-decodes OFDM symbols received through wireless channels and transmits them to the upper layer. You can do the conveying action.
  • Figure 3 is a diagram showing the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the radio access network of the next-generation mobile communication system includes a next-generation base station (new radio node B, hereinafter referred to as NR gNB, gNB or base station) 310 and NR CN (305, new radio core network). ) may be configured to include.
  • a user terminal (new radio user equipment, hereinafter referred to as NR UE or terminal) 315 may access an external network through the NR gNB 310 and the NR CN 305.
  • the NR gNB 310 may correspond to an eNB in the LTE system.
  • NR gNB is connected to the NR UE 315 through a wireless channel and can provide superior services than eNB.
  • all user traffic is serviced through a shared channel, so a device that collects status information such as buffer status, available transmission power status, and channel status of UEs and performs scheduling is required, which is NR gNB. (310) can be in charge.
  • One NR gNB can typically control multiple cells.
  • a bandwidth exceeding the maximum bandwidth of LTE can be used, and beamforming technology can be additionally applied using OFDM as a wireless access technology.
  • the AMC method that determines the modulation scheme and channel coding rate according to the channel status of the terminal can be applied.
  • the NR CN 305 can perform functions such as mobility support, bearer setup, and QoS setup.
  • NR CN is a device that handles various control functions as well as mobility management functions for the terminal and can be connected to multiple base stations.
  • the next-generation mobile communication system can also be linked to the LTE system, and the NR CN (305) can be connected to the MME (325) through a network interface.
  • MME 325 may be connected to eNB 320.
  • Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the wireless protocols of the next-generation mobile communication system are NR SDAP (service data adaptation protocol, 405, 450), NR PDCP (410, 445), NR RLC (415, 440), and NR at the terminal and NR base station, respectively. It may be composed of MAC (420, 435).
  • NR SDAP (405, 450) may include one or more of the following functions.
  • the terminal can configure whether to use the header of the SDAP layer device or use the function of the SDAP layer device for each PDCP layer device, each bearer, or each logical channel by an RRC message, and the SDAP header
  • the NAS QoS reflection setting 1-bit indicator (NAS reflective QoS) and the AS QoS reflection setting 1-bit indicator (AS reflective QoS) in the SDAP header provide mapping information for the uplink and downlink QoS flows and data bearers. You can instruct to update or reset.
  • the SDAP header may include QoS flow ID information indicating QoS. QoS information can be used as data processing priority and scheduling information to support smooth service.
  • NR PDCP 410, 445 may include one or more of the following functions.
  • the reordering function of the NR PDCP device refers to the function of rearranging the PDCP PDUs received from the lower layer in order based on the PDCP SN (sequence number), and delivering data to the upper layer in the reordered order. It may include a function to directly transmit without considering the order, it may include a function to rearrange the order and record lost PDCP PDUs, and it may include a status report on the lost PDCP PDUs. It may include a function to the transmitting side, and may include a function to request retransmission of lost PDCP PDUs.
  • NR RLC 415, 440 may include one or more of the following functions.
  • the in-sequence delivery function of the NR RLC device refers to the function of delivering RLC SDUs received from the lower layer to the upper layer in order.
  • one RLC SDU is divided into several RLC SDUs and received. If so, it may include a function to reassemble and transmit them, and may include a function to rearrange the received RLC PDUs based on the RLC SN (sequence number) or PDCP SN (sequence number), and rearrange the order. It may include a function to record lost RLC PDUs, it may include a function to report the status of lost RLC PDUs to the transmitting side, and it may include a function to request retransmission of lost RLC PDUs.
  • the timer may be included. It may include a function to deliver all RLC SDUs received to the upper layer in order before the start of the service, or if a predetermined timer expires even if there is a lost RLC SDU, all RLC SDUs received to date are delivered to the upper layer in order. It may include a transmission function.
  • RLC PDUs may be processed in the order in which they are received (e.g., in the order of arrival, regardless of the order of the serial number or sequence number) and delivered out-of-sequence delivery to the PDCP device.
  • segments stored in a buffer or to be received in the future can be received, reconstructed into one complete RLC PDU, processed, and transmitted to the PDCP device.
  • the NR RLC layer may not include a concatenation function and the function may be performed in the NR MAC layer or replaced with the multiplexing function of the NR MAC layer.
  • the out-of-sequence delivery function of the NR RLC device refers to the function of directly delivering RLC SDUs received from a lower layer to the upper layer regardless of the order. Originally, one RLC SDU is divided into several RLC SDUs. If it is received in fragments, it may include a function to reassemble and transmit it, and it may include a function to store the RLC SN or PDCP SN of the received RLC PDUs, sort the order, and record lost RLC PDUs. .
  • the NR MAC (420, 435) may be connected to multiple NR RLC layer devices configured in one terminal, and the NR MAC may include one or more of the following functions.
  • the NR PHY layers (425, 430) channel code and modulate upper layer data, create OFDM symbols and transmit them to the wireless channel, or demodulate and channel decode the OFDM symbols received through the wireless channel and transmit them to the upper layer. It can be done.
  • FIG. 5 is a diagram illustrating a procedure in which a UAV (uncrewed aerial vehicle) terminal transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • UAV uncrewed aerial vehicle
  • a UAV terminal may operate at a higher location than a terrestrial UE and may therefore have a longer visibility range than a terrestrial UE. Therefore, compared to a ground terminal, a UAV terminal can receive downlink (DL) interference from more cells. In other words, UAV terminals have the characteristic of receiving a high level of DL interference from more surrounding cells than terrestrial terminals. Likewise, UAV terminals have the characteristic of causing uplink (UL) interference with more cells than terrestrial terminals.
  • DL downlink
  • UAV terminals have the characteristic of receiving a high level of DL interference from more surrounding cells than terrestrial terminals.
  • UAV terminals have the characteristic of causing uplink (UL) interference with more cells than terrestrial terminals.
  • UL uplink
  • the UAV terminal 505 may establish an RRC connection with the NR base station 510 and be in the RRC connected mode (RRC_CONNECTED) 515.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • the terminal capability information message may include whether numberOfTriggeringCells is supported (eg, multipleCellsMeasExtension), which may be included in the reporting configuration.
  • multipleCellsMeasExtension may indicate whether the terminal supports the ability to determine whether to transmit a measurement report based on the number of cells (numberOfTriggeringCells) set by the base station.
  • the multipleCellsMeasExtension may define whether the base station supports measurement reporting triggered based on the number of cells set (This field defines whether the UE supports measurement reporting triggered based on a number of cells).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the measurement setting information may include measurement object information (measObjectToAddModList) containing conditions for the measurement object, and a report including entering conditions, leaving conditions, or reporting conditions of the measurement event.
  • Configuration information (reportConfigToAddModList) may be included.
  • measObjectToAddModList can be composed of one or multiple MeasObjectToAddMods, and each MeasObjectToAddMod can be composed as follows.
  • ReportConfigToAddModList can be composed of one or multiple ReportConfigToAddMods, and each ReportConfigToAddMod can be composed as follows.
  • reportType may be set to eventTriggered, and numberOfTriggeringCells may be included in event setting information (eg, EventA3, EventA4, EventA5, EventB1, EventB2).
  • numberOfTriggeringCells may indicate the number of detected cells for which an event must be satisfied to trigger a measurement report (numberOfTriggeringCells IE indicates the number of cells detected that are required to fulfill an event for a measurement report to be triggered).
  • the entering or leaving conditions of the event may be as follows.
  • the terminal may determine whether to transmit a measurement report based on the measurement setting information received in step 525. Specifically, the terminal may initiate the measurement reporting procedure when at least one of the following conditions is satisfied.
  • the terminal may transmit a measurement report to the base station in step 535.
  • the procedure for the terminal to transmit a measurement report to the base station may be as follows.
  • FIG. 6 is a diagram illustrating an example in which the efficiency of handover or interference mitigation is reduced when a UAV terminal transmits a measurement report to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 605 may establish an RRC connection with the NR base station 610 and be in the RRC connected mode (RRC_CONNECTED) 515.
  • the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the UECapabilityInformation message may follow the above-described embodiment (eg, FIG. 5).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • RRC message eg, RRCResume or RRCReconfiguration
  • Transmission of the RRC message may follow the above-described embodiment (eg, FIG. 5).
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, the eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied. ) is assumed to be set.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 625. Specifically, the terminal may start the measurement reporting procedure when at least one of the following conditions is satisfied.
  • the terminal may include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList.
  • the terminal can start the measurement reporting procedure when the number of cells included in cellsTriggeredList is greater than or equal to numberOfTriggeringCells.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 5).
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in steps 625. For example, if the entry conditions of EventA3 for Cell 1, Cell 2, Cell 3, and Cell 4 are met, the terminal may include Cell 1, Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList. However, the terminal may not initiate the measurement reporting procedure. For example, the terminal has the characteristic of not initiating a measurement reporting procedure when the following conditions are met. If the following conditions are met and the measurement reporting procedure is not initiated, step 635 may not be performed.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 625. For example, if the entry conditions of EventA3 for Cell 2, Cell 3, and Cell 4 are met, the terminal may include Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList. However, the terminal may not start the measurement reporting procedure. For example, Cell 1 can be released from the cellsTriggeredList by satisfying the following leaving conditions of EventA3. At this time, if reportOnLeave is not set to TRUE, the terminal may not start the measurement reporting procedure. If the measurement reporting procedure is not initiated, step 635 may not be performed.
  • the base station may transmit an RRC message (RRCReconfiguration) to instruct the UE to handover to Cell 1.
  • the UE may fail the handover to Cell 1 and perform an RRC connection re-establishment procedure with the base station.
  • the reasons why the terminal fails handover to Cell 1 may be as follows.
  • the terminal transmitted a measurement report to the base station in step 635, including Cell 1 that satisfies EventA3, but later, even though Cell 1 no longer satisfies EventA3, this may be because it did not inform the base station of this through the measurement report procedure. .
  • the base station may request or instruct Cell 1 or another base station including Cell 1 to mitigate interference.
  • interference mitigation is performed through at least one of beam adjustment for downlink interference mitigation, multi transmission reception point (mTRP), and uplink transmission strength adjustment of the terminal for uplink interference mitigation. It can be.
  • the base station can perform different interference mitigation policies by considering the interference levels of other Cells 2 and 3 included in the measurement report, including the interference level of Cell 1.
  • the interference mitigation operation for Cell 1 may no longer be helpful to the terminal.
  • the terminal transmitted a measurement report to the base station including Cell 1 that satisfies EventA3, but this may be because it did not notify the base station through the measurement report procedure even though Cell 1 no longer satisfies EventA3. These unnecessary interference mitigation operations may degrade the performance of Cell 1 or the terminal.
  • Figure 7 is a diagram illustrating a process in which a UAV terminal transmits a measurement report for a specific cell to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 705 may establish an RRC connection with the NR base station 710 and be in the RRC connected mode (RRC_CONNECTED) 715.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • the terminal capability information message may include support for allowedCellsToAddModList, which may be included in the measurement object configuration, and useAllowedCellList, which may be included in the measurement reporting configuration (e.g., allowedCellList).
  • allowedCellList may indicate whether the ability to target only the list of cells (allowedCellsToAddModList) set by the base station for determining the event entering and living conditions is supported. That is, when the allowedCellList is included in the terminal capability information or the allowedCellList is set to True, it may indicate that the terminal supports determining event entering and living conditions only for the list of cells (allowedCellsToAddModList) set by the base station.
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • Transmission of an RRC message (e.g., RRCResume or RRCReconfiguration) may follow the above-described embodiments (e.g., FIGS. 5 and 6).
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, the eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied. ) is assumed to be set.
  • the base station sets numberOfTriggeringCells to 3, includes the first measurement setting information with eventTriggered set to eventA3, Cell1 in allowedCellList, useAllowedCellList set to TRUE, and the second measurement setting setting eventTriggered to eventA3. Assume that the information has been set.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in steps 730 and 725. Specifically, the terminal can be determined as a measurement target when at least one of the following conditions is satisfied.
  • the terminal can include Cell 1 in cellsTriggeredList.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 5).
  • the base station may request interference mitigation or instructions from Cell 1 or other base stations including Cell 1. Requests or instructions for interference mitigation may follow the above-described embodiments (e.g., Figure 6). At this time, the base station cannot know whether neighboring cells other than Cell 1 exist in the terminal's cell list, so the efficiency of the interference mitigation operation may be reduced.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 725. That is, if the entry conditions of EventA3 for Cell 1, Cell 2, and Cell 3 are met, the terminal can include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIGS. 5 and 6).
  • the base station may request interference mitigation or instructions from Cell 1 or other base stations including Cell 1. Requests or instructions for interference mitigation may follow the above-described embodiments (e.g., Figure 6). At this time, the base station can check the presence or absence of other neighboring cells (Cell 2, Cell 3) in the terminal's cell list, and more efficient interference mitigation operations may be possible.
  • Cell 2 Cell 3
  • Figure 8 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 805 may establish an RRC connection with the NR base station 810 and be in the RRC connected mode (RRC_CONNECTED) 815.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, and 7).
  • the terminal capability information message may include a field regarding whether enhanced measurement reporting for UAV is supported. The field may indicate whether the terminal supports the ability to determine whether to transmit a measurement report based on the cell list set by the base station.
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, and 7). Additionally, the base station can configure a cell list containing one or more cells and whether to use the cell list for improved measurement reporting.
  • Method 1 The setting method in the form of CellsToAddModList or allowedCellsToAddModList may follow the example described above (e.g., Figure 7).
  • CellsToAddModList or allowedCellsToAddModList and numberOfTriggeringCells or an indicator indicating whether improved measurement reporting is used can be included in the measurement setting information to instruct the specified Cell list to be considered during the determination of the start of the measurement reporting procedure. This can be used simultaneously with other lists including blockedCellsToAddModList.
  • Method 2 A form containing one or more physCellIds and may be referred to as cellsToReportAddModList in the present disclosure.
  • cellsToReportAddModList can be composed of AddModList and RemoveList, which support addition, change, and deletion, or can be composed of a single list.
  • cellsToReportAddModList may be configured in one of the following forms, but is not limited to this and may include one or more PCIs and an offset for the corresponding PCI or another configuration that does not include an offset. Additionally, the cellsToReportAddModList can be used simultaneously with another list including blockedCellsToAddModList.
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that cellsToReportAddModList is set to include Cell 1, Cell 4, and Cell 5.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 825. If the entry conditions for Cell 1 are met, the terminal can include Cell 1 in the cellsTriggeredList. The terminal can determine whether to start the measurement reporting procedure using a combination of at least one of the following methods.
  • Method 1 The terminal may initiate a measurement reporting procedure if at least one of the cells newly included in cellsTriggeredList (i.e., cells not previously reported) is a cell included in cellsToReportAddModList.
  • Method 2 When the terminal satisfies the conditions related to cellsToReportAddModList and the number of cells included in cellsTriggeredList is more than numberOfTriggeringCells, the terminal may initiate a measurement reporting procedure.
  • Method 3 When the conditions related to cellsToReportAddModList are satisfied, the terminal may initiate a measurement reporting procedure, regardless of the number of cells included in cellsTriggeredList and numberOfTriggeringCells.
  • Method 4 The terminal may initiate a measurement reporting procedure when the number of cells included in cellsToReportAddModList among cells included in cellsTriggeredList is greater than or equal to numberOfTriggeringCells.
  • the terminal determines that Cell 1 newly included in cellsTriggeredList is included in cellsToReportAddModList in step 830, satisfying the conditions of Method 1, and measurement is performed regardless of numberOfTriggeringCells according to Method 3.
  • a reporting procedure may be initiated.
  • the terminal determines in step 830 that Cell 1 newly included in cellsTriggeredList is included in cellsToReportAddModList, so the conditions of method 1 are satisfied, but the cells included in cellsTriggeredList are higher than numberOfTriggeringCells. Because the number is small, it is determined that the conditions of Method 2 are not satisfied and the measurement reporting procedure may not be initiated.
  • the terminal determines the condition of Method 4 in step 830 because Cell 1 included in cellsTriggeredList is included in cellsToReportAddModList, but the number of cells included in cellsToReportAddModList among the cells included in cellsTriggeredList is less than numberOfTriggeringCells. If it is determined to be unsatisfactory, the measurement reporting process may not be initiated.
  • the terminal may transmit a measurement report to the base station in step 835 according to the above-described embodiment (eg, FIGS. 5, 6, and 7).
  • the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, and Cell 3 meet the entry conditions of EventA3, the terminal adds Cell 1, Cell 2, and You can determine whether to include Cell 3 and start the measurement reporting process.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 2).
  • the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, Cell 3, and Cell 4 meet the entry conditions of EventA3, the terminal can include Cell 1, Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList.
  • the terminal determines that Cell 4, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 850, satisfying the conditions of Method 1, and follows Method 3.
  • the measurement reporting procedure can be initiated regardless of numberOfTriggeringCells.
  • the terminal determines that Cell 4, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 850, satisfying the conditions of Method 1, and cellsTriggeredList than numberOfTriggeringCells. Since the number of cells included in is the same or greater, it is determined that the conditions of method 2 are satisfied, and the measurement reporting procedure can be initiated.
  • the terminal determines in step 850 that Cell 1 and Cell 4 included in cellsTriggeredList are included in cellsToReportAddModList, but the number of cells included in cellsToReportAddModList among the cells included in cellsTriggeredList is Since it is less than numberOfTriggeringCells, it is determined that the conditions of method 4 are not satisfied, and the measurement reporting procedure may not be initiated.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIGS. 5, 6, and 7).
  • the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, Cell 3, Cell 4, and Cell 5 meet the entry conditions of EventA3, the terminal can include Cell 1, Cell 2, Cell 3, Cell 4, and Cell 5 in the cellsTriggeredList.
  • the terminal determines that Cell 5, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 860, satisfying the conditions of Method 1, and follows Method 3.
  • the measurement reporting procedure can be initiated regardless of numberOfTriggeringCells.
  • the terminal determines that Cell 5, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 860, satisfying the conditions of Method 1, and cellsTriggeredList than numberOfTriggeringCells. Since the number of cells included in is the same or greater, it is determined that the conditions of method 2 are satisfied, and the measurement reporting procedure can be initiated.
  • step 860 the terminal determines that Cell 1, Cell 4, and Cell 5 included in cellsTriggeredList are included in cellsToReportAddModList, and among the cells included in cellsTriggeredList, cells included in cellsToReportAddModList Since the number of cells is equal to or greater than numberOfTriggeringCells, it is determined that the conditions of method 4 are satisfied, and the measurement reporting procedure can be initiated.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 2).
  • steps 830, 840, 850, and 860 are examples disclosed to explain a method proposed to determine whether to initiate the measurement reporting procedure of the present disclosure, and not all steps must necessarily be included. .
  • at least one of steps 830, 840, 850, and 860 may be included, and the terminal determines whether to initiate a measurement reporting procedure through one or a combination of at least two of methods 1 to 4. can do.
  • starting the measurement report in steps 830, 840, 850, and 860 is described as an example, but the conditions for starting the measurement report procedure are not satisfied, so the measurement report is not performed. It may not be possible.
  • Figure 9 is a diagram illustrating a process in which a UAV terminal efficiently transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 905 may establish an RRC connection with the NR base station 910 and be in the RRC connected mode (RRC_CONNECTED) 915.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, and 8). Additionally, the terminal capability information message may include whether measurement reporting using cellsToReportList is supported. Whether or not a measurement report using cellsToReportList is supported may indicate whether the terminal has the ability to additionally include cells of cellsToReportList when transmitting a measurement report.
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, 7, and 8).
  • cellsToReportAddModList may specify the same target as cellsToReportAddModList in the above-described embodiment (eg, FIG. 8), or may specify a different target. If a different target is specified, the name of cellsToReportAddModList in FIGS. 8 and 9 may be different. For convenience of explanation, it is assumed that cellsToReportAddModList in FIG.
  • the base station set numberOfTriggeringCells to 3, eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied), and Cell in cellsToReportAddModList. Assume that it is set to include 1, Cell 3, and Cell 4.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 925. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can use the following method.
  • Cell 1 and Cell 3 meet the entry conditions and are included in cellsToReportAddModList, so the terminal can include the cells in the cellsTriggeredList.
  • Cell 2 meets the entry conditions, but is not included in cellsToReportAddModList, so it can be included in cellsToReportList.
  • Subsequent determination of the measurement reporting procedure may follow the examples described above (eg, FIGS. 5, 6, 7, and 8).
  • the terminal may not initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells.
  • the measurement reporting procedure may be initiated depending on the number of numberOfTriggeringCells set and the number of cells that meet the entry conditions.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 925. If the entry conditions for Cell 1, Cell 2, Cell 3, and Cell 4 are met, the terminal may include the cells in cellsTriggeredList or cellsToReportList according to the method in step 930. As an example, Cell 1, Cell 3, and Cell 4 meet the entry conditions and are included in cellsToReportAddModList, so the terminal can include the cells in cellsTriggeredList. Cell 2 meets the entry conditions, but is not included in cellsToReportAddModList, so it can be included in cellsToReportList. Subsequent determination of the measurement reporting procedure may follow the examples described above (eg, FIGS. 5, 6, 7, and 8). The terminal can initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, and 8). Additionally, if there are cells included in cellsToReportList and the number of cells included in cellsTriggeredList is smaller than maxReportCells included in the measurement report setting information, a measurement report can be transmitted to the base station by adding cells included in cellsToReportList up to maxReportCells. When including cells included in cellsToReportList in the measurement report, the terminal may preferentially include cells with good measurement quantity included in the measurement settings such as RSRP, RSRQ, and SINR of the cells received in step 925. .
  • steps 930 and 935 are an example disclosed to explain a method proposed to determine whether to initiate the measurement reporting procedure of the present disclosure, and not all steps must necessarily be included. Additionally, as described above, in the above embodiment, whether or not the measurement reporting procedure is initiated may be changed depending on the value of numberOfTriggeringCells and the number of cells that satisfy the entry.
  • Figure 10 is a diagram illustrating a process in which a UAV terminal transmits a measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 1005 may establish an RRC connection with the NR base station 1010 and be in the RRC connected mode (RRC_CONNECTED) 1015.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, and 9).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, 7, 8, and 9).
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to true.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1025. If the entry conditions for Cell 1 and Cell 2 are met, the terminal can include Cell 1 and Cell 2 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells, the terminal may not initiate the measurement reporting procedure. However, this is only an example, and the measurement reporting procedure may be initiated depending on the number of numberOfTriggeringCells set and the number of cells that meet the entry conditions.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1025. If the living conditions for Cell 2 are met, the terminal can delete Cell 2 from cellsTriggeredList. The terminal can initiate the measurement reporting procedure when reportOnLeave is set to true. Specifically, the terminal may initiate a measurement reporting procedure if at least one of the conditions below is satisfied.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, and 9). At this time, the terminal can transmit a measurement report even though the number of cells included in the terminal's cellsTriggeredList is smaller than the numberOfTriggeringCells set by the base station. This may be a measurement report that the base station did not intend.
  • FIG. 11 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 1105 may establish an RRC connection with the NR base station 1110 and be in the RRC connected mode (RRC_CONNECTED) 1115.
  • RRC_CONNECTED RRC connected mode
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, and 10). Additionally, the message may include support for enhanced measurement reporting based on living conditions. Support for improved measurement reports based on living conditions can be determined when at least one of the cells included in the cell list set by the base station satisfies the living conditions when the terminal determines whether to transmit the measurement report. It can indicate whether or not the ability is supported.
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the transmission method of the RRC message e.g., RRCResume or RRCReconfiguration
  • the base station can configure a cell list containing one or more cells and whether to use the cell list for improved measurement reporting based on living conditions.
  • Method 1 The setting method in the form of CellsToAddModList or allowedCellsToAddModList may follow the example described above (e.g., Figure 7).
  • CellsToAddModList or allowedCellsToAddModList and numberOfTriggeringCells or an indicator indicating whether improved measurement reporting is used may be included in the measurement setting information to indicate that the specified Cell list is considered during the determination of the start of the measurement reporting procedure based on living conditions. This can be used simultaneously with other lists including blockedCellsToAddModList.
  • Method 2 A form that includes one or more physCellIds and may be referred to as cellsToReportOnLeaveAddModList in the present disclosure.
  • cellsToReportOnLeaveAddModList can be composed of AddModList and RemoveList, which support addition, change, and deletion, or can be composed of a single list.
  • cellsToReportOnLeaveAddModList may be configured in one of the following forms, but is not limited to this and may include one or more PCIs and include an offset for the corresponding PCI or other types of configurations that do not include an offset.
  • cellsToReportOnLeaveAddModList can be used simultaneously with another list containing blockedCellsToAddModList.
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that cellsToReportOnLeaveAddModList is set to include Cell 1, Cell 3, and Cell 4, and reportOnLeave is set to true.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the entry conditions for Cell 1 and Cell 2 are met, the terminal may include Cell 1 and Cell 2 in the cellsTriggeredList. The terminal may not initiate the measurement reporting procedure because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the living conditions for Cell 2 are met, the terminal can delete Cell 2 from cellsTriggeredList. The terminal can determine whether to start a measurement reporting procedure based on living conditions using a combination of at least one of the following methods.
  • Method 1 The terminal may start the measurement reporting procedure if at least one cell that satisfies the living condition is included in cellsToReportOnLeaveAddModList.
  • Method 2 The terminal may start the measurement reporting procedure if the number of cells included in the cellsTriggeredList is equal to or greater than numberOfTriggeredCells after at least one cell that satisfies the living condition is deleted from the cellsTriggeredList.
  • the numberOfTriggeringCells used in the living condition may be a different value from the numberOfTriggeringCells used in determining the start of the measurement reporting procedure, and may be set to different names.
  • the terminal determines that Cell 2, which satisfies the living condition, is not included in the cellsToReportOnLeaveAddModList in step 1120 and does not satisfy the conditions of Method 1, so it may not start the measurement reporting procedure.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 3, Cell 4, and Cell 5 are met, the terminal follows the above-described example (e.g., Figures 5, 6, 7, 8, 9, and 10). Cell 1, Cell 3, Cell 4, and Cell 5 can be included in cellsToReportList.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, 9, and 10).
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the living conditions for Cell 4 are met, the terminal can delete Cell 4 from cellsTriggeredList.
  • the terminal determines that Cell 4 that satisfies the living condition is included in the cellsToReportOnLeaveAddModList in step 1150 and satisfies the conditions of Method 1, so the measurement reporting procedure can be started. .
  • the terminal determines that Cell 4, which satisfies the living condition, is included in the cellsToReportOnLeaveAddModList in step 1150, and thus satisfies the conditions of method 1.
  • the number of cells included in cellsTriggeredList is determined to be equal to or greater than numberOfTriggeringCells, and the conditions of Method 2 are determined to be satisfied, and the measurement reporting procedure can be started.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, 9, and 10).
  • steps 1130, 1135, 1140, and 1150 are examples disclosed to explain the proposed method of the present disclosure, and not all steps must necessarily be included.
  • at least one of steps 1130, 1135, 1140, and 1150 may be included, and the terminal determines whether to initiate a measurement reporting procedure through one or a combination of at least two of Method 1 and Method 2. can do.
  • starting the measurement report in steps 1140 and 1150 is described as an example, but the number of cells included in cellsTriggeredList, the number of cells satisfying the living condition, and the set value of numberOfTriggeringCells Depending on this, whether or not to initiate measurement reporting at each stage may change.
  • Figure 12 is a diagram illustrating a process in which a UAV terminal transmits a measurement report by changing measurement report settings to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 1205 may establish an RRC connection with the NR base station 1210 and be in the RRC connected mode (RRC_CONNECTED) 1215.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, 10, and 11).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • RRC message eg, RRCResume or RRCReconfiguration
  • MeasConfig measurement configuration information
  • the transmission method of the RRC message may follow the above-described embodiment (eg, Figure 2, Figure 5, Figure 6 or Figure 8).
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to false.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, the terminal can initiate a measurement reporting procedure.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal to set reportOnLeave to true.
  • RRC message e.g., RRCResume or RRCReconfiguration
  • MeasConfig measurement configuration information
  • the transmission method of the RRC message may follow the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11).
  • the terminal can receive measurement setting information and apply reportOnLeave as true.
  • the measurement report entry held by the terminal may be deleted.
  • a measurement report entry held by the terminal may be deleted. Specifically, add, change, or delete at least one of the contents included in measurement setting information (MeasConfig), measurement object information (measObjectToAddModList) included in measurement setting information, or reporting setting information (reportConfigToAddModList) included in measurement setting information. If set to do so, the terminal can delete report entries containing measurement results based on previous settings.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1240. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can include the cells in the cellsTriggeredList. The terminal can initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11). Additional measurement reports due to changes in base station settings may result in signaling overhead.
  • Figure 13 is a diagram illustrating a process in which a base station transmits an improved measurement report setting change to a UAV terminal in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 1305 may establish an RRC connection with the NR base station 1310 and be in the RRC connected mode (RRC_CONNECTED) 1315.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, 10, 11, and 12).
  • the terminal capability information message may include whether or not the enhanced measurement report setting change function is supported. Whether or not the enhanced measurement report settings change function is supported indicates whether the terminal has the ability to change the measurement report settings without deleting the measurement report entry held when the base station transmits a message to change the measurement report settings to the terminal. .
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • RRC message e.g., RRCResume or RRCReconfiguration
  • MeasConfig measurement configuration information
  • the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to false.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal may include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, the terminal can initiate a measurement reporting procedure.
  • the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, and 12).
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal to set reportOnLeave to true.
  • the transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) follows the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, and 12). You can.
  • the base station may transmit an indicator instructing not to delete the measurement report entry held by the terminal by including it in the measurement setting information.
  • the indicator instructing not to delete a measurement report entry may be indicated by a combination of at least one or more of at least one measurement target setting, at least one measurement report setting, or measurement setting information.
  • the terminal can receive measurement setting information and apply reportOnLeave as true. At this time, if an indicator is included that instructs the terminal not to delete the measurement report entry held by the terminal, the terminal is responsible for You may not delete any measurement report entries you have. Since the measurement report entry has not been deleted, the terminal may maintain a state in which the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, and thus may not transmit additional measurement reports.
  • Figure 14 is a diagram illustrating a process in which a UAV terminal changes reportOnLeave according to conditions in a next-generation mobile communication system according to an embodiment of the present disclosure.
  • the UAV terminal 1405 may establish an RRC connection with the NR base station 1410 and be in the RRC connected mode (RRC_CONNECTED) 1415.
  • the terminal may transmit a UECapabilityInformation message to the base station.
  • Transmission of the terminal capability information message may follow the examples described above (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13). Additionally, the terminal capability information message may include whether or not the capability to change reportOnLeave is supported depending on conditions. Support for the ability to change reportOnLeave according to conditions indicates whether the terminal has the ability to change reportOnLeave to true or false according to conditions set by the base station.
  • the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal.
  • the transmission method of the RRC message e.g., RRCResume or RRCReconfiguration
  • RRCResume or RRCReconfiguration is similar to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13).
  • a condition that sets reportOnLeave to true and a condition that sets reportOnLeave to false can be included.
  • a combination of at least one of the following methods may be used.
  • Method 1 If the entry or living conditions of a specific event are met, reportOnLeave is applied as true or false. Specific events may follow the examples described above (e.g., Figure 5), and may also be applicable to other events not specified.
  • Method 2 Apply reportOnLeave as true or false when certain interference conditions are met or not met.
  • the specific interference condition may be the sum of RSRPs of all interfering cells or a specific threshold for the sum of RSRPs of at least one specified cell.
  • Method 3 Apply reportOnLeave as true or false when certain location conditions are met or not met.
  • a specific location condition may be in the form of a location and a range containing a rectangle or circle centered on the location, or may be an identifier representing the range.
  • Method 4 If a specific path condition is met or not met, reportOnLeave is applied as true or false. Specific route conditions may be part of the flight path reported by the terminal.
  • the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received.
  • the determination of the start of the measurement reporting procedure may follow the examples described above (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13).
  • step 1435 the terminal can set reportOnLeave to true or false according to the method set in step 1425.
  • a condition for setting reportOnLeave to true for an event that satisfies the entry condition is included, and when an event that satisfies the entry condition occurs, the terminal sets reportOnLeave Can be set to true.
  • a condition for setting reportOnLeave to true is included when the sum of RSRP values of neighboring interference cells is greater than the threshold, and the sum of RSRP values of neighboring interference cells If it is above this threshold, the terminal can set reportOnLeave to true.
  • a condition for setting reportOnLeave to true when entering a specific location or range is included, and when the terminal recognizes that it has entered a specific location or range.
  • the terminal can set reportOnLeave to true.
  • a condition for setting reportOnLeave to true when entering a specific path is included, and when the terminal recognizes that it has entered a specific path, the terminal sets reportOnLeave Can be set to true.
  • step 1440 the terminal transmits a measurement report to the base station according to the above-described embodiment (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13). You can.
  • Figure 15 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.
  • the base station may include a transceiver 1505, a control unit 1510, and a storage unit 1515.
  • the transceiver unit 1505, control unit 1510, and storage unit 1515 may operate according to the communication method of the base station described above.
  • Network devices may also correspond to the structure of a base station.
  • the components of the base station are not limited to the above examples.
  • a base station may include more or fewer components than those described above.
  • the base station may include a transceiver 1505 and a control unit 1510.
  • the transmitting and receiving unit 1505, the control unit 1510, and the storage unit 1515 may be implemented in the form of a single chip.
  • the transceiving unit 1505 is a general term for the receiving unit of the base station and the transmitting unit of the base station, and can transmit and receive signals with a terminal, another base station, or other network devices.
  • the transmitted and received signals may include control information and data.
  • the transceiver 1505 may transmit system information to the terminal and may transmit a synchronization signal or a reference signal.
  • the transceiver 1505 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency.
  • the transceiver 1505 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 1505 may receive a signal through a communication channel (eg, a wireless channel) and output it to the control unit 1510, and transmit the signal output from the control unit 1510 through the communication channel. Additionally, the transceiver unit 1505 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a terminal, another base station, or another entity through a wired or wireless network.
  • a communication channel eg, a wireless channel
  • the storage unit 1515 can store programs and data necessary for the operation of the base station. Additionally, the storage unit 1515 may store control information or data included in signals obtained from the base station.
  • the storage unit 1515 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media. Additionally, the storage unit 1515 may store at least one of information transmitted and received through the transmitting and receiving unit 1505 and information generated through the control unit 1510.
  • control unit 1510 may be defined as a circuit or an application-specific integrated circuit or at least one processor.
  • the processor 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 1510 can control the overall operation of the base station according to the embodiment proposed in this disclosure. For example, the control unit 1510 may control signal flow between each block to perform operations according to the flowchart described above.
  • Figure 16 is a diagram showing the structure of a terminal according to an embodiment of the present disclosure.
  • the terminal may include a transceiver 1605, a control unit 1610, and a storage unit 1615.
  • the transmitting and receiving unit 1605, the control unit 1610, and the storage unit 1615 may operate according to the communication method of the terminal described above.
  • the components of the terminal are not limited to the examples described above.
  • the terminal may include more or fewer components than the aforementioned components.
  • the terminal may include a transceiver 1605 and a control unit 1610.
  • the transmitting and receiving unit 1605, the control unit 1610, and the storage unit 1615 may be implemented in the form of a single chip.
  • the transmitting and receiving unit 1605 is a general term for the terminal's receiving unit and the terminal's transmitting unit, and can transmit and receive signals with a base station, other terminals, or network entities. Signals transmitted and received from the base station may include control information and data.
  • the transceiver 1605 may receive system information from a base station and may receive a synchronization signal or a reference signal. To this end, the transceiver 1605 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency.
  • the transceiver 1605 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 1605 may receive a signal through a wireless channel and output it to the control unit 1610, and transmit the signal output from the control unit 1610 through a wireless channel. Additionally, the transceiver unit 1605 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a network entity through a wired or wireless network.
  • the storage unit 1615 can store programs and data necessary for operation of the terminal. Additionally, the memory 1615 may store control information or data included in signals obtained from the terminal.
  • the storage unit 1615 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media.
  • control unit 1610 may be defined as a circuit or an application-specific integrated circuit or at least one processor.
  • the processor 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 1610 can control the overall operation of the terminal according to the embodiment proposed in this disclosure. For example, the control unit 1610 may control signal flow between each block to perform operations according to the flowchart described above.
  • a computer-readable storage medium that stores one or more programs (software modules) may be provided.
  • One or more programs stored in a computer-readable storage medium are configured to be executable by one or more processors in an electronic device (configured for execution).
  • One or more programs include instructions that cause the electronic device to execute methods according to embodiments described in the claims or specification of the present disclosure.
  • These programs include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable programmable ROM.
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • magnetic disc storage device Compact Disc-ROM (CD-ROM: Compact Disc-ROM), Digital Versatile Discs (DVDs), or other types of It can be stored in an optical storage device or magnetic cassette. Alternatively, it may be stored in a memory consisting of a combination of some or all of these. Additionally, multiple configuration memories may be included.
  • the program may be operated through a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that is accessible. This storage device can be connected to a device performing an embodiment of the present disclosure through an external port. Additionally, a separate storage device on a communication network may be connected to the device performing an embodiment of the present disclosure.
  • a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that is accessible. This storage device can be connected to a device performing an embodiment of the present disclosure through an external port. Additionally, a separate storage device on a communication network may be connected to the device performing an embodiment of the present disclosure.

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Abstract

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates.The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. A method, according to an embodiment of the present disclosure, comprises the following steps: receiving, from a base station, a first measurement configuration comprising information on the number of triggering cells for which an event needs to be satisfied in order to trigger measurement reporting; if the event is satisfied for at least one cell, carrying out measurement reporting on the basis of the information about the number of triggering cells; receiving, from the base station, a second measurement configuration comprising information instructing such that the measurement reporting entry is not deleted; and carrying out measurement on the basis of the second measurement configuration, wherein the measurement reporting entry is not deleted on the basis of the instruction information.

Description

무선 통신 시스템에서 무인 비행 단말을 위한 향상된 측정 보고 방법과 장치 Improved measurement reporting method and device for unmanned flying terminal in wireless communication system
본 개시는 일반적으로 무선 통신 시스템에 관한 것으로, 보다 구체적으로, 무선 통신 시스템에서 무인 비행 단말을 위한 향상된 측정 보고 방법과 장치에 관한 것이다. The present disclosure relates generally to wireless communication systems, and more specifically to improved measurement reporting methods and devices for unmanned flying terminals in wireless communication systems.
5G 이동통신 기술은 빠른 전송 속도와 새로운 서비스가 가능하도록 넓은 주파수 대역을 정의하고 있으며, 3.5 기가헤르츠(3.5GHz) 등 6GHz 이하 주파수('Sub 6GHz') 대역은 물론 28GHz와 39GHz 등 밀리미터파(㎜Wave)로 불리는 초고주파 대역('Above 6GHz')에서도 구현이 가능하다. 또한, 5G 통신 이후(Beyond 5G)의 시스템이라 불리어지는 6G 이동통신 기술의 경우, 5G 이동통신 기술 대비 50배 빨라진 전송 속도와 10분의 1로 줄어든 초저(Ultra Low) 지연시간을 달성하기 위해 테라헤르츠(Terahertz) 대역(예를 들어, 95GHz에서 3 테라헤르츠(3THz) 대역과 같은)에서의 구현이 고려되고 있다.5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave. In addition, in the case of 6G mobile communication technology, which is called the system of Beyond 5G, Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.
5G 이동통신 기술의 초기에는, 초광대역 서비스(enhanced Mobile BroadBand, eMBB), 고신뢰/초저지연 통신(Ultra-Reliable Low-Latency Communications, URLLC), 대규모 기계식 통신 (massive Machine-Type Communications, mMTC)에 대한 서비스 지원과 성능 요구사항 만족을 목표로, 초고주파 대역에서의 전파의 경로손실 완화 및 전파의 전달 거리를 증가시키기 위한 빔포밍(Beamforming) 및 거대 배열 다중 입출력(Massive MIMO), 초고주파수 자원의 효율적 활용을 위한 다양한 뉴머롤로지 지원(복수 개의 서브캐리어 간격 운용 등)와 슬롯 포맷에 대한 동적 운영, 다중 빔 전송 및 광대역을 지원하기 위한 초기 접속 기술, BWP(Band-Width Part)의 정의 및 운영, 대용량 데이터 전송을 위한 LDPC(Low Density Parity Check) 부호와 제어 정보의 신뢰성 높은 전송을 위한 폴라 코드(Polar Code)와 같은 새로운 채널 코딩 방법, L2 선-처리(L2 pre-processing), 특정 서비스에 특화된 전용 네트워크를 제공하는 네트워크 슬라이싱(Network Slicing) 등에 대한 표준화가 진행되었다.In the early days of 5G mobile communication technology, there were concerns about ultra-wideband services (enhanced Mobile BroadBand, eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). With the goal of satisfying service support and performance requirements, efficient use of ultra-high frequency resources, including beamforming and massive array multiple input/output (Massive MIMO) to alleviate radio wave path loss and increase radio wave transmission distance in ultra-high frequency bands. Various numerology support (multiple subcarrier interval operation, etc.) and dynamic operation of slot format, initial access technology to support multi-beam transmission and broadband, definition and operation of BWP (Band-Width Part), large capacity New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information, L2 pre-processing, and dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.
현재, 5G 이동통신 기술이 지원하고자 했던 서비스들을 고려하여 초기의 5G 이동통신 기술 개선(improvement) 및 성능 향상(enhancement)을 위한 논의가 진행 중에 있으며, 차량이 전송하는 자신의 위치 및 상태 정보에 기반하여 자율주행 차량의 주행 판단을 돕고 사용자의 편의를 증대하기 위한 V2X(Vehicle-to-Everything), 비면허 대역에서 각종 규제 상 요구사항들에 부합하는 시스템 동작을 목적으로 하는 NR-U(New Radio Unlicensed), NR 단말 저전력 소모 기술(UE Power Saving), 지상 망과의 통신이 불가능한 지역에서 커버리지 확보를 위한 단말-위성 직접 통신인 비 지상 네트워크(Non-Terrestrial Network, NTN), 위치 측위(Positioning) 등의 기술에 대한 물리계층 표준화가 진행 중이다. Currently, discussions are underway to improve and enhance the initial 5G mobile communication technology, considering the services that 5G mobile communication technology was intended to support, based on the vehicle's own location and status information. V2X (Vehicle-to-Everything) to help autonomous vehicles make driving decisions and increase user convenience, and NR-U (New Radio Unlicensed), which aims to operate a system that meets 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 the terrestrial network is impossible, positioning, etc. Physical layer standardization for technology is in progress.
뿐만 아니라, 타 산업과의 연계 및 융합을 통한 새로운 서비스 지원을 위한 지능형 공장 (Industrial Internet of Things, IIoT), 무선 백홀 링크와 액세스 링크를 통합 지원하여 네트워크 서비스 지역 확장을 위한 노드를 제공하는 IAB(Integrated Access and Backhaul), 조건부 핸드오버(Conditional Handover) 및 DAPS(Dual Active Protocol Stack) 핸드오버를 포함하는 이동성 향상 기술(Mobility Enhancement), 랜덤액세스 절차를 간소화하는 2 단계 랜덤액세스(2-step RACH for NR) 등의 기술에 대한 무선 인터페이스 아키텍쳐/프로토콜 분야의 표준화 역시 진행 중에 있으며, 네트워크 기능 가상화(Network Functions Virtualization, NFV) 및 소프트웨어 정의 네트워킹(Software-Defined Networking, SDN) 기술의 접목을 위한 5G 베이스라인 아키텍쳐(예를 들어, Service based Architecture, Service based Interface), 단말의 위치에 기반하여 서비스를 제공받는 모바일 엣지 컴퓨팅(Mobile Edge Computing, MEC) 등에 대한 시스템 아키텍쳐/서비스 분야의 표준화도 진행 중이다.In addition, IAB (IAB) provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links. Integrated Access and Backhaul, Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover, and 2-step Random Access (2-step RACH for simplification of random access procedures) Standardization in the field of wireless interface architecture/protocol for technologies such as NR) is also in progress, and a 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.
이와 같은 5G 이동통신 시스템이 상용화되면, 폭발적인 증가 추세에 있는 커넥티드 기기들이 통신 네트워크에 연결될 것이며, 이에 따라 5G 이동통신 시스템의 기능 및 성능 강화와 커넥티드 기기들의 통합 운용이 필요할 것으로 예상된다. 이를 위해, 증강현실(Augmented Reality, AR), 가상현실(Virtual Reality, VR), 혼합 현실(Mixed Reality, MR) 등을 효율적으로 지원하기 위한 확장 현실(eXtended Reality, XR), 인공지능(Artificial Intelligence, AI) 및 머신러닝(Machine Learning, ML)을 활용한 5G 성능 개선 및 복잡도 감소, AI 서비스 지원, 메타버스 서비스 지원, 드론 통신 등에 대한 새로운 연구가 진행될 예정이다.When this 5G mobile communication system is commercialized, an explosive increase in connected devices will be connected to the communication network. Accordingly, it is expected that strengthening the functions and performance of the 5G mobile communication system and integrated operation of connected devices will be necessary. To this end, eXtended Reality (XR) and Artificial Intelligence to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR). , AI) and machine learning (ML), new research will be conducted on 5G performance improvement and complexity reduction, AI service support, metaverse service support, and drone communication.
또한, 이러한 5G 이동통신 시스템의 발전은 6G 이동통신 기술의 테라헤르츠 대역에서의 커버리지 보장을 위한 신규 파형(Waveform), 전차원 다중입출력(Full Dimensional MIMO, FD-MIMO), 어레이 안테나(Array Antenna), 대규모 안테나(Large Scale Antenna)와 같은 다중 안테나 전송 기술, 테라헤르츠 대역 신호의 커버리지를 개선하기 위해 메타물질(Metamaterial) 기반 렌즈 및 안테나, OAM(Orbital Angular Momentum)을 이용한 고차원 공간 다중화 기술, RIS(Reconfigurable Intelligent Surface) 기술 뿐만 아니라, 6G 이동통신 기술의 주파수 효율 향상 및 시스템 네트워크 개선을 위한 전이중화(Full Duplex) 기술, 위성(Satellite), AI(Artificial Intelligence)를 설계 단계에서부터 활용하고 종단간(End-to-End) AI 지원 기능을 내재화하여 시스템 최적화를 실현하는 AI 기반 통신 기술, 단말 연산 능력의 한계를 넘어서는 복잡도의 서비스를 초고성능 통신과 컴퓨팅 자원을 활용하여 실현하는 차세대 분산 컴퓨팅 기술 등의 개발에 기반이 될 수 있을 것이다.In addition, the development of these 5G mobile communication systems includes new waveforms, full dimensional MIMO (FD-MIMO), and array antennas to ensure coverage in the terahertz band of 6G mobile communication technology. , multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end. -to-End) Development of AI-based communication technology that realizes system optimization by internalizing AI support functions, and next-generation distributed computing technology that realizes services of complexity beyond the limits of terminal computing capabilities by utilizing ultra-high-performance communication and computing resources. It could be the basis for .
본 개시는 무선 통신 시스템에서 무인 비행 단말을 위한 측정 보고 메시지를 전송하는 방법 및 장치를 제공하여 무인 비행 단말이 전송하는 측정 보고 메시지를 보다 효율적으로 제공하고자 한다.The present disclosure seeks to more efficiently provide a measurement report message transmitted by an unmanned flight terminal by providing a method and device for transmitting a measurement report message for an unmanned flight terminal in a wireless communication system.
본 개시에서 이루고자 하는 기술적 과제들은 이상에서 언급한 기술적 과제들로 제한되지 않으며, 언급하지 않은 또 다른 기술적 과제들은 아래의 기재로부터 본 개시가 속하는 기술분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다. The technical problems to be achieved by this disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. You will be able to.
상기와 같은 문제점을 해결하기 위한 본 개시는 무선 통신 시스템에서 단말에 의해 수행되는 방법에 있어서, 기지국으로부터 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 수신하는 단계; 적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반하여 상기 측정 보고를 수행하는 단계; 상기 기지국으로부터 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 수신하는 단계; 및 상기 제2 측정 설정에 기반하여 측정을 수행하는 단계를 포함하며, 상기 지시자에 기반하여 상기 측정 보고의 엔트리는 삭제되는 않는 것을 특징으로 한다. The present disclosure to solve the above problems is a method performed by a terminal in a wireless communication system, in which a first measurement setting includes information about the number of triggering cells for which an event must be satisfied in order to trigger a measurement report from the base station. receiving; If the event is satisfied for at least one cell, performing the measurement report based on information about the number of triggering cells; Receiving a second measurement setting from the base station including information instructing not to delete the entry in the measurement report; and performing measurement based on the second measurement setting, wherein entries in the measurement report are not deleted based on the indicator.
상기와 같은 문제점을 해결하기 위한 본 개시는 무선 통신 시스템에서 기지국에 의해 수행되는 방법에 있어서, 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 단말에 전송하는 단계; 적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반한 상기 측정 보고를 상기 단말로부터 수신하는 단계; 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 상기 단말에 전송하는 단계를 포함하는 것을 특징으로 한다. The present disclosure to solve the above problems is a method performed by a base station in a wireless communication system, in which a first measurement setting including information about the number of triggering cells that must be satisfied with an event to trigger a measurement report is provided to the terminal. Transferring to; If the event is satisfied for at least one cell, receiving the measurement report based on information about the number of triggering cells from the terminal; Characterized by transmitting a second measurement setting including information instructing not to delete the entry in the measurement report to the terminal.
상기와 같은 문제점을 해결하기 위한 본 개시는 무선 통신 시스템에서 단말에 있어서 송수신부; 및 상기 송수신부와 연결된 제어부를 포함하고, 상기 제어부는, 기지국으로부터 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 수신하고, 적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반하여 상기 측정 보고를 수행하고, 상기 기지국으로부터 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 수신하고, 상기 제2 측정 설정에 기반하여 측정을 수행하며, 상기 지시자에 기반하여 상기 측정 보고의 엔트리는 삭제되는 않는 것을 특징으로 한다. The present disclosure to solve the above problems is a wireless communication system that includes a transmitter and receiver in a terminal; And a control unit connected to the transceiver unit, wherein the control unit receives a first measurement setting including information about the number of triggering cells in which an event must be satisfied to trigger a measurement report from the base station, and transmits a first measurement setting to at least one cell. If the event is satisfied, perform the measurement report based on information about the number of triggering cells, and receive a second measurement setting including information instructing not to delete the entry in the measurement report from the base station, and , Measurement is performed based on the second measurement setting, and the entry in the measurement report is not deleted based on the indicator.
상기와 같은 문제점을 해결하기 위한 본 개시는 무선 통신 시스템에서 기지국에 있어서 송수신부; 및 상기 송수신부와 연결된 제어부를 포함하며, 상기 제어부는, 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 단말에 전송하고, 적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반한 상기 측정 보고를 상기 단말로부터 수신하고, 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 상기 단말에 전송하는 것을 특징으로 한다. The present disclosure to solve the above problems includes a transmitter and receiver in a base station in a wireless communication system; and a control unit connected to the transceiver unit, wherein the control unit transmits to the terminal a first measurement setting including information on the number of triggering cells in which an event must be satisfied in order to trigger a measurement report, and transmits a first measurement setting to the terminal, and transmits a first measurement setting to the terminal, If the event is satisfied, the measurement report based on the information about the number of triggering cells is received from the terminal, and a second measurement setting including information instructing not to delete the entry in the measurement report is sent to the terminal. Characterized by transmission.
본 개시의 실시 예에 따르면, 기지국은 단말의 측정 보고 여부의 판단에서 추가적으로 고려할 수 있는 셀의 리스트를 설정할 수 있다. 단말은 기지국이 설정한 셀의 리스트에 포함되는 셀들의 신호 세기 측정 결과와 기지국이 설정한 셀의 리스트에 포함되지 않는 셀들의 신호 세기 측정 결과를 동시에 전송할 수 있다. According to an embodiment of the present disclosure, the base station can set a list of cells that can be additionally considered when determining whether to report measurement of the terminal. The terminal may simultaneously transmit the signal strength measurement results of cells included in the list of cells set by the base station and the signal strength measurement results of cells not included in the list of cells set by the base station.
본 개시에서 얻을 수 있는 효과는 이상에서 언급한 효과들로 제한되지 않으며, 언급하지 않은 또 다른 효과들은 아래의 기재로부터 본 개시가 속하는 기술 분야에서 통상의 지식을 가진 자에게 명확하게 이해될 수 있을 것이다.The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.
도 1는 본 개시의 일 실시 예에 따른 LTE 시스템의 구조를 도시한 도면이다. Figure 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
도 2는 본 개시의 일 실시 예에 따른 LTE 시스템에서 무선 프로토콜 구조를 도시한 도면이다.FIG. 2 is a diagram illustrating a wireless protocol structure in an LTE system according to an embodiment of the present disclosure.
도 3는 본 개시의 일 실시 예에 따른 차세대 이동통신 시스템의 구조를 도시한 도면이다. Figure 3 is a diagram showing the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
도 4는 본 개시의 일 실시 예에 따른 차세대 이동통신 시스템의 무선 프로토콜 구조를 나타낸 도면이다.Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
도 5는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV(uncrewed aerial vehicle) 단말이 측정 보고(measurement report)를 기지국에게 전송하는 절차를 도시한 도면이다. FIG. 5 is a diagram illustrating a procedure in which a UAV (uncrewed aerial vehicle) terminal transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 6은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 측정 보고를 기지국에게 전송 시 핸드오버 또는 간섭 완화(mitigation)의 효율성이 저하되는 일 예를 도시한 도면이다. FIG. 6 is a diagram illustrating an example in which the efficiency of handover or interference mitigation is reduced when a UAV terminal transmits a measurement report to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
도 7은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 특정 셀에 대한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 7 is a diagram illustrating a process in which a UAV terminal transmits a measurement report for a specific cell to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 8은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 향상된 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 8 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 9는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 효율적으로 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 9 is a diagram illustrating a process in which a UAV terminal efficiently transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 10은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 리빙 조건에 기반한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 10 is a diagram illustrating a process in which a UAV terminal transmits a measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 11은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 리빙 조건에 기반한 향상된 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.FIG. 11 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 12는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 측정 보고 설정 변경에 의한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 12 is a diagram illustrating a process in which a UAV terminal transmits a measurement report by changing measurement report settings to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
도 13은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 기지국이 UAV단말에게 향상된 측정 보고 설정 변경을 전송하는 과정을 도시한 도면이다.Figure 13 is a diagram illustrating a process in which a base station transmits an improved measurement report setting change to a UAV terminal in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 14는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV단말이 조건에 따라 reportOnLeave를 변경하는 과정을 도시한 도면이다.Figure 14 is a diagram illustrating a process in which a UAV terminal changes reportOnLeave according to conditions in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 15는 본 개시의 실시 예에 따른 기지국의 구조를 도시한 도면이다.Figure 15 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.
도 16은 본 개시의 실시 예에 따른 단말의 구조를 도시한 도면이다. Figure 16 is a diagram showing the structure of a terminal according to an embodiment of the present disclosure.
이하, 본 개시의 실시 예를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, embodiments of the present disclosure will be described in detail with reference to the attached drawings.
실시 예를 설명함에 있어서 본 개시가 속하는 기술 분야에 익히 알려져 있고 본 개시와 직접적으로 관련이 없는 기술 내용에 대해서는 설명을 생략한다. 이는 불필요한 설명을 생략함으로써 본 개시의 요지를 흐리지 않고 더욱 명확히 전달하기 위함이다.In describing the embodiments, description of technical content that is well known in the technical field to which this disclosure belongs and that is not directly related to this disclosure will be omitted. This is to convey the gist of the present disclosure more clearly without obscuring it by omitting unnecessary explanation.
마찬가지 이유로 첨부된 도면에 있어서 일부 구성요소는 과장되거나 생략되거나 개략적으로 도시되었다. 또한, 각 구성요소의 크기는 실제 크기를 전적으로 반영하는 것이 아니다. 각 도면에서 동일한 또는 대응하는 구성 요소에는 동일한 참조 번호를 부여하였다.For the same reason, some components in the attached drawings are exaggerated, omitted, or schematically shown. Additionally, the size of each component does not entirely reflect its actual size. In each drawing, identical or corresponding components are assigned the same reference numbers.
본 개시의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시 예들을 참조하면 명확해질 것이다. 그러나 본 개시는 이하에서 개시되는 실시 예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시 예들은 본 개시의 개시가 완전하도록 하고, 본 개시가 속하는 기술분야에서 통상의 지식을 가진 자에게 개시의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 개시는 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다. 또한 본 개시를 설명함에 있어서 관련된 기능 또는 구성에 대한 구체적인 설명이 본 개시의 요지를 불필요하게 흐릴 수 있다고 판단된 경우 그 상세한 설명은 생략한다. 그리고 후술되는 용어들은 본 개시에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다. The advantages and features of the present disclosure and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms, and the present embodiments are merely intended to ensure that the disclosure is complete and to provide common knowledge in the technical field to which the present disclosure pertains. It is provided to fully inform those who have the scope of the disclosure, and the disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. Additionally, when describing the present disclosure, if it is determined that a detailed description of a related function or configuration may unnecessarily obscure the gist of the present disclosure, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of the functions in the present disclosure, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.
본 개시의 실시 예들을 설명함에 있어서, 이동통신 규격 표준화 단체인 3GPP(3rd Generation Partnership Project)가 명시하고 있는 5G 이동통신 규격 상의 무선 접속망인 New Radio(NR)과 코어 망인 패킷 코어 5G System, 혹은 5G Core Network, 혹은 NG Core(Next Generation Core)를 주된 대상으로 하지만, 본 개시의 주요한 요지는 유사한 기술적 배경을 가지는 여타의 통신 시스템에도 본 개시의 범위를 크게 벗어 나지 아니 하는 범위에서 약간의 변형으로 적용 가능하며, 이는 본 개시의 기술 분야에서 숙련된 기술적 지식을 가진 자의 판단으로 가능 할 것이다.In describing embodiments of the present disclosure, New Radio (NR), a wireless access network based on the 5G mobile communication standard specified by the 3rd Generation Partnership Project (3GPP), a mobile communication standard standardization organization, and Packet Core 5G System, a core network, or 5G Although the main target is Core Network, or NG Core (Next Generation Core), the main gist of the present disclosure can be applied to other communication systems with similar technical background with slight modifications without significantly departing from the scope of the present disclosure. It is possible, and this will be possible at the discretion of a person skilled in the technical field of the present disclosure.
이하, 설명의 편의를 위하여, 3GPP 규격(5G, NR, LTE 또는 이와 유사한 시스템의 규격)에서 정의하고 있는 용어 및 명칭들이 일부 사용될 수 있다. 하지만, 본 개시가 용어 및 명칭들에 의해 한정되는 것은 아니며, 다른 규격에 따르는 시스템에도 동일하게 적용될 수 있다.Hereinafter, for convenience of explanation, some terms and names defined in the 3GPP standard (standard for 5G, NR, LTE, or similar systems) may be used. However, the present disclosure is not limited by terms and names, and can be equally applied to systems that comply with other standards.
이하, 설명에서 사용되는 접속 노드(node)를 식별하기 위한 용어, 망 객체(network entity, 네트워크 엔티티)들을 지칭하는 용어, 메시지들을 지칭하는 용어, 네트워크 엔티티들 간 인터페이스를 지칭하는 용어, 다양한 식별 정보들을 지칭하는 용어 등은 설명의 편의를 위해 예시된 것이다. 따라서, 본 개시에서 사용하는 용어들에 한정되는 것은 아니며, 동등한 기술적 의미를 가지는 대상을 지칭하는 다른 용어가 사용될 수 있다.Hereinafter, terms used in the description to identify the connection node, terms referring to network entities, terms referring to messages, terms referring to the interface between network entities, and various identification information. Terms referring to these are exemplified for convenience of explanation. Therefore, it is not limited to the terms used in the present disclosure, and other terms referring to objects having equivalent technical meaning may be used.
이하, 기지국은 단말의 자원할당을 수행하는 주체로서, gNode B, eNode B, Node B, BS(Base Station), 무선 접속 유닛, 기지국 제어기, 또는 네트워크 상의 노드 중 적어도 하나일 수 있다. 단말은 UE(User Equipment), MS(Mobile Station), 셀룰러폰, 스마트폰, 컴퓨터, 또는 통신기능을 수행할 수 있는 멀티미디어시스템을 포함할 수 있다. 본 개시에서 하향링크(Downlink; DL)는 기지국이 단말에게 전송하는 신호의 무선 전송경로이고, 상향링크는(Uplink; UL)는 단말이 기지국에게 전송하는 신호의 무선 전송경로를 의미한다. Hereinafter, the base station is the entity that performs resource allocation for the terminal and may be at least one of gNode B, eNode B, Node B, BS (Base Station), wireless access unit, base station controller, or node on the network. A terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions. In this disclosure, downlink (DL) refers to a wireless transmission path of a signal transmitted from a base station to a terminal, and uplink (UL) refers to a wireless transmission path of a signal transmitted from a terminal to a base station.
이때, 처리 흐름도 도면들의 각 블록과 흐름도 도면들의 조합들은 컴퓨터 프로그램 인스트럭션들에 의해 수행될 수 있음을 이해할 수 있을 것이다. 이들 컴퓨터 프로그램 인스트럭션들은 범용 컴퓨터, 특수용 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비의 프로세서에 탑재될 수 있으므로, 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비의 프로세서를 통해 수행되는 그 인스트럭션들이 흐름도 블록(들)에서 설명된 기능들을 수행하는 수단을 생성하게 된다. 이들 컴퓨터 프로그램 인스트럭션들은 특정 방식으로 기능을 구현하기 위해 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비를 지향할 수 있는 컴퓨터 이용 가능 또는 컴퓨터 판독 가능 메모리에 저장되는 것도 가능하므로, 그 컴퓨터 이용가능 또는 컴퓨터 판독 가능 메모리에 저장된 인스트럭션들은 흐름도 블록(들)에서 설명된 기능을 수행하는 인스트럭션 수단을 내포하는 제조 품목을 생산하는 것도 가능하다. 컴퓨터 프로그램 인스트럭션들은 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비 상에 탑재되는 것도 가능하므로, 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비 상에서 일련의 동작 단계들이 수행되어 컴퓨터로 실행되는 프로세스를 생성해서 컴퓨터 또는 기타 프로그램 가능한 데이터 프로세싱 장비를 수행하는 인스트럭션들은 흐름도 블록(들)에서 설명된 기능들을 실행하기 위한 단계들을 제공하는 것도 가능하다.At this time, it will be understood that each block of the processing flow diagrams and combinations of the flow diagram diagrams can be performed by computer program instructions. These computer program instructions can be mounted on a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, so that the instructions performed through the processor of the computer or other programmable data processing equipment are described in the flow chart block(s). It creates the means to perform functions. These computer program instructions may also be stored in computer-usable or computer-readable memory that can be directed to a computer or other programmable data processing equipment to implement a function in a particular manner, so that the computer-usable or computer-readable memory The instructions stored in may also produce manufactured items containing instruction means that perform the functions described in the flow diagram block(s). Computer program instructions can also be mounted on a computer or other programmable data processing equipment, so that a series of operational steps are performed on the computer or other programmable data processing equipment to create a process that is executed by the computer, thereby generating a process that is executed by the computer or other programmable data processing equipment. Instructions that perform processing equipment may also provide steps for executing the functions described in the flow diagram block(s).
또한, 각 블록은 특정된 논리적 기능(들)을 실행하기 위한 하나 이상의 실행 가능한 인스트럭션들을 포함하는 모듈, 세그먼트 또는 코드의 일부를 나타낼 수 있다. 또, 몇 가지 대체 실행 예들에서는 블록들에서 언급된 기능들이 순서를 벗어나서 발생하는 것도 가능함을 주목해야 한다. 예를 들면, 잇달아 도시되어 있는 두 개의 블록들은 사실 실질적으로 동시에 수행되는 것도 가능하고 또는 그 블록들이 때때로 해당하는 기능에 따라 역순으로 수행되는 것도 가능하다.Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). Additionally, it should be noted that in some alternative execution examples it is possible for the functions mentioned in the blocks to occur out of order. For example, it is possible for two blocks shown in succession to be performed substantially simultaneously, or it is possible for the blocks to be performed in reverse order depending on the corresponding function.
이때, 본 실시 예에서 사용되는 '~부'라는 용어는 소프트웨어 또는 FPGA(field Programmable Gate Array) 또는 ASIC(Application Specific Integrated Circuit)과 같은 하드웨어 구성요소를 의미하며, '~부'는 어떤 역할들을 수행한다. 그렇지만 '~부'는 소프트웨어 또는 하드웨어에 한정되는 의미는 아니다. '~부'는 어드레싱할 수 있는 저장 매체에 있도록 구성될 수도 있고 하나 또는 그 이상의 프로세서들을 재생시키도록 구성될 수도 있다. 따라서, 일 예로서 '~부'는 소프트웨어 구성요소들, 객체지향 소프트웨어 구성요소들, 클래스 구성요소들 및 태스크 구성요소들과 같은 구성요소들과, 프로세스들, 함수들, 속성들, 프로시저들, 서브루틴들, 프로그램 코드의 세그먼트들, 드라이버들, 펌웨어, 마이크로코드, 회로, 데이터, 데이터베이스, 데이터 구조들, 테이블들, 어레이들, 및 변수들을 포함한다. 구성요소들과 '~부'들 안에서 제공되는 기능은 더 작은 수의 구성요소들 및 '~부'들로 결합되거나 추가적인 구성요소들과 '~부'들로 더 분리될 수 있다. 뿐만 아니라, 구성요소들 및 '~부'들은 디바이스 또는 보안 멀티미디어카드 내의 하나 또는 그 이상의 CPU(central processing unit)들을 재생시키도록 구현될 수도 있다. 또한 실시 예에서 '~부'는 하나 이상의 프로세서를 포함할 수 있다.At this time, the term '~unit' used in this embodiment refers to software or hardware components such as FPGA (field programmable gate array) or ASIC (Application Specific Integrated Circuit), and the '~unit' performs certain roles. do. However, '~part' is not limited to software or hardware. The '~ part' may be configured to reside in an addressable storage medium and may be configured to reproduce on one or more processors. Therefore, as an example, '~ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, 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 may be further separated into additional components and 'parts'. In addition, the components and 'parts' may be implemented to reproduce one or more central processing units (CPUs) within a device or a secure multimedia card. Also, in an embodiment, '~ part' may include one or more processors.
5G 이동통신 기술은 빠른 전송 속도와 새로운 서비스가 가능하도록 넓은 주파수 대역을 정의하고 있으며, 3.5 기가헤르츠(3.5GHz) 등 6GHz 이하 주파수('Sub 6GHz') 대역은 물론 28GHz와 39GHz 등 밀리미터파(㎜Wave)로 불리는 초고주파 대역('Above 6GHz')에서도 구현이 가능하다. 또한, 5G 통신 이후(Beyond 5G)의 시스템이라 불리어지는 6G 이동통신 기술의 경우, 5G 이동통신 기술 대비 50배 빨라진 전송 속도와 10분의 1로 줄어든 초저(Ultra Low) 지연시간을 달성하기 위해 테라헤르츠(Terahertz) 대역(예를 들어, 95GHz에서 3 테라헤르츠(3THz) 대역과 같은)에서의 구현이 고려되고 있다.5G mobile communication technology defines a wide frequency band to enable fast transmission speeds and new services, and includes sub-6 GHz ('Sub 6GHz') bands such as 3.5 gigahertz (3.5 GHz) as well as millimeter wave (mm) bands such as 28 GHz and 39 GHz. It is also possible to implement it in the ultra-high frequency band ('Above 6GHz') called Wave. In addition, in the case of 6G mobile communication technology, which is called the system of Beyond 5G, Terra is working to achieve a transmission speed that is 50 times faster than 5G mobile communication technology and an ultra-low delay time that is reduced to one-tenth. Implementation in Terahertz bands (e.g., 95 GHz to 3 THz) is being considered.
5G 이동통신 기술의 초기에는, 초광대역 서비스(enhanced Mobile BroadBand, eMBB), 고신뢰/초저지연 통신(Ultra-Reliable Low-Latency Communications, URLLC), 대규모 기계식 통신(massive Machine-Type Communications, mMTC)에 대한 서비스 지원과 성능 요구사항 만족을 목표로, 초고주파 대역에서의 전파의 경로손실 완화 및 전파의 전달 거리를 증가시키기 위한 빔포밍(Beamforming) 및 거대 배열 다중 입출력(Massive MIMO), 초고주파수 자원의 효율적 활용을 위한 다양한 뉴머롤로지 지원(복수 개의 서브캐리어 간격 운용 등)와 슬롯 포맷에 대한 동적 운영, 다중 빔 전송 및 광대역을 지원하기 위한 초기 접속 기술, BWP(Band-Width Part)의 정의 및 운영, 대용량 데이터 전송을 위한 LDPC(Low Density Parity Check) 부호와 제어 정보의 신뢰성 높은 전송을 위한 폴라 코드(Polar Code)와 같은 새로운 채널 코딩 방법, L2 선-처리(L2 pre-processing), 특정 서비스에 특화된 전용 네트워크를 제공하는 네트워크 슬라이싱(Network Slicing) 등에 대한 표준화가 진행되었다.In the early days of 5G mobile communication technology, there were concerns about ultra-wideband services (enhanced Mobile BroadBand, eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). With the goal of satisfying service support and performance requirements, efficient use of ultra-high frequency resources, including beamforming and massive array multiple input/output (Massive MIMO) to alleviate radio wave path loss and increase radio wave transmission distance in ultra-high frequency bands. Various numerology support (multiple subcarrier interval operation, etc.) and dynamic operation of slot format, initial access technology to support multi-beam transmission and broadband, definition and operation of BWP (Band-Width Part), large capacity New channel coding methods such as LDPC (Low Density Parity Check) codes for data transmission and Polar Code for highly reliable transmission of control information, L2 pre-processing, and dedicated services specialized for specific services. Standardization of network slicing, etc., which provides networks, has been carried out.
현재, 5G 이동통신 기술이 지원하고자 했던 서비스들을 고려하여 초기의 5G 이동통신 기술 개선(improvement) 및 성능 향상(enhancement)을 위한 논의가 진행 중에 있으며, 차량이 전송하는 자신의 위치 및 상태 정보에 기반하여 자율주행 차량의 주행 판단을 돕고 사용자의 편의를 증대하기 위한 V2X(Vehicle-to-Everything), 비면허 대역에서 각종 규제 상 요구사항들에 부합하는 시스템 동작을 목적으로 하는 NR-U(New Radio Unlicensed), NR 단말 저전력 소모 기술(UE Power Saving), 지상 망과의 통신이 불가능한 지역에서 커버리지 확보를 위한 단말-위성 직접 통신인 비 지상 네트워크(Non-Terrestrial Network, NTN), 위치 측위(Positioning) 등의 기술에 대한 물리계층 표준화가 진행 중이다. Currently, discussions are underway to improve and enhance the initial 5G mobile communication technology, considering the services that 5G mobile communication technology was intended to support, based on the vehicle's own location and status information. V2X (Vehicle-to-Everything) to help autonomous vehicles make driving decisions and increase user convenience, and NR-U (New Radio Unlicensed), which aims to operate a system that meets 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 the terrestrial network is impossible, positioning, etc. Physical layer standardization for technology is in progress.
뿐만 아니라, 타 산업과의 연계 및 융합을 통한 새로운 서비스 지원을 위한 지능형 공장(Industrial Internet of Things, IIoT), 무선 백홀 링크와 액세스 링크를 통합 지원하여 네트워크 서비스 지역 확장을 위한 노드를 제공하는 IAB(Integrated Access and Backhaul), 조건부 핸드오버(Conditional Handover) 및 DAPS(Dual Active Protocol Stack) 핸드오버를 포함하는 이동성 향상 기술(Mobility Enhancement), 랜덤액세스 절차를 간소화하는 2 단계 랜덤액세스(2-step RACH for NR) 등의 기술에 대한 무선 인터페이스 아키텍쳐/프로토콜 분야의 표준화 역시 진행 중에 있으며, 네트워크 기능 가상화(Network Functions Virtualization, NFV) 및 소프트웨어 정의 네트워킹(Software-Defined Networking, SDN) 기술의 접목을 위한 5G 베이스라인 아키텍쳐(예를 들어, Service based Architecture, Service based Interface), 단말의 위치에 기반하여 서비스를 제공받는 모바일 엣지 컴퓨팅(Mobile Edge Computing, MEC) 등에 대한 시스템 아키텍쳐/서비스 분야의 표준화도 진행 중이다.In addition, IAB (IAB) provides a node for expanding the network service area by integrating intelligent factories (Industrial Internet of Things, IIoT) to support new services through linkage and convergence with other industries, and wireless backhaul links and access links. Integrated Access and Backhaul, Mobility Enhancement including Conditional Handover and DAPS (Dual Active Protocol Stack) handover, and 2-step Random Access (2-step RACH for simplification of random access procedures) Standardization in the field of wireless interface architecture/protocol for technologies such as NR) is also in progress, and a 5G baseline for incorporating Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technology Standardization in the field of system architecture/services for architecture (e.g., Service based Architecture, Service based Interface) and Mobile Edge Computing (MEC), which provides services based on the location of the terminal, is also in progress.
이와 같은 5G 이동통신 시스템이 상용화되면, 폭발적인 증가 추세에 있는 커넥티드 기기들이 통신 네트워크에 연결될 것이며, 이에 따라 5G 이동통신 시스템의 기능 및 성능 강화와 커넥티드 기기들의 통합 운용이 필요할 것으로 예상된다. 이를 위해, 증강현실(Augmented Reality, AR), 가상현실(Virtual Reality, VR), 혼합 현실(Mixed Reality, MR) 등을 효율적으로 지원하기 위한 확장 현실(eXtended Reality, XR), 인공지능(Artificial Intelligence, AI) 및 머신러닝(Machine Learning, ML)을 활용한 5G 성능 개선 및 복잡도 감소, AI 서비스 지원, 메타버스 서비스 지원, 드론 통신 등에 대한 새로운 연구가 진행될 예정이다.When this 5G mobile communication system is commercialized, an explosive increase in connected devices will be connected to the communication network. Accordingly, it is expected that strengthening the functions and performance of the 5G mobile communication system and integrated operation of connected devices will be necessary. To this end, eXtended Reality (XR) and Artificial Intelligence to efficiently support Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR). , AI) and machine learning (ML), new research will be conducted on 5G performance improvement and complexity reduction, AI service support, metaverse service support, and drone communication.
또한, 이러한 5G 이동통신 시스템의 발전은 6G 이동통신 기술의 테라헤르츠 대역에서의 커버리지 보장을 위한 신규 파형(Waveform), 전차원 다중입출력(Full Dimensional MIMO, FD-MIMO), 어레이 안테나(Array Antenna), 대규모 안테나(Large Scale Antenna)와 같은 다중 안테나 전송 기술, 테라헤르츠 대역 신호의 커버리지를 개선하기 위해 메타물질(Metamaterial) 기반 렌즈 및 안테나, OAM(Orbital Angular Momentum)을 이용한 고차원 공간 다중화 기술, RIS(Reconfigurable Intelligent Surface) 기술 뿐만 아니라, 6G 이동통신 기술의 주파수 효율 향상 및 시스템 네트워크 개선을 위한 전이중화(Full Duplex) 기술, 위성(Satellite), AI(Artificial Intelligence)를 설계 단계에서부터 활용하고 종단간(End-to-End) AI 지원 기능을 내재화하여 시스템 최적화를 실현하는 AI 기반 통신 기술, 단말 연산 능력의 한계를 넘어서는 복잡도의 서비스를 초고성능 통신과 컴퓨팅 자원을 활용하여 실현하는 차세대 분산 컴퓨팅 기술 등의 개발에 기반이 될 수 있을 것이다.In addition, the development of these 5G mobile communication systems includes new waveforms, full dimensional MIMO (FD-MIMO), and array antennas to ensure coverage in the terahertz band of 6G mobile communication technology. , multi-antenna transmission technology such as Large Scale Antenna, metamaterial-based lens and antenna to improve coverage of terahertz band signals, high-dimensional spatial multiplexing technology using OAM (Orbital Angular Momentum), RIS ( In addition to Reconfigurable Intelligent Surface technology, Full Duplex technology, satellite, and AI (Artificial Intelligence) to improve the frequency efficiency of 6G mobile communication technology and system network are utilized from the design stage and end-to-end. -to-End) Development of AI-based communication technology that realizes system optimization by internalizing AI support functions, and next-generation distributed computing technology that realizes services of complexity beyond the limits of terminal computing capabilities by utilizing ultra-high-performance communication and computing resources. It could be the basis for .
도 1은 본 개시의 실시 예에 따른 LTE 시스템의 구조를 도시한 도면이다. 1 is a diagram illustrating the structure of an LTE system according to an embodiment of the present disclosure.
도 1를 참조하면, 도시한 바와 같이 LTE 시스템의 무선 액세스 네트워크는 LTE 기지국(evolved node B, 이하 LTE eNB, eNB 또는 기지국)(115, 120, 125, 130)과 MME (105, mobility management entity) 및 S-GW(110, serving-gateway)를 포함하여 구성될 수 있다. 사용자 단말(user equipment, 이하 UE 또는 단말)(135)은 eNB(115, 120, 125, 130) 및 S-GW(110)를 통해 외부 네트워크에 접속할 수 있다.Referring to FIG. 1, as shown, the radio access network of the LTE system includes an LTE base station (evolved node B, hereinafter referred to as LTE eNB, eNB or base station) (115, 120, 125, 130) and an MME (105, mobility management entity). and S-GW (110, serving-gateway). User equipment (hereinafter referred to as UE or terminal) 135 may access an external network through the eNBs 115, 120, 125, 130 and the S-GW 110.
도 1에서 eNB(115, 120, 125, 130)는 UMTS 시스템의 노드 B에 대응될 수 있다. eNB(115)는 UE(135)와 무선 채널로 연결되며 노드 B보다 복잡한 역할을 수행할 수 있다. LTE 시스템에서는 인터넷 프로토콜을 통한 VoIP(voice over IP)와 같은 실시간 서비스를 비롯한 모든 사용자 트래픽이 공용 채널(shared channel)을 통해 서비스되므로, UE들의 버퍼 상태, 가용 전송 전력 상태, 채널 상태 등의 상태 정보를 취합해서 스케줄링을 하는 장치가 필요하며, 이를 eNB(115, 120, 125, 130)가 담당할 수 있다. 하나의 eNB는 통상 복수의 셀들을 제어할 수 있다. 예컨대, 100 Mbps의 전송 속도를 구현하기 위해서 LTE 시스템은 예컨대, 20 MHz 대역폭에서 직교 주파수 분할 다중 방식(orthogonal frequency division multiplexing, 이하 OFDM)을 무선 접속 기술로 사용할 수 있다. 또한 단말의 채널 상태에 맞춰 변조 방식(modulation scheme)과 채널 코딩률(channel coding rate)을 결정하는 적응 변조 코딩(adaptive modulation & coding, 이하 AMC) 방식을 적용할 수 있다. S-GW(110)는 데이터 베어러(bearer)를 제공하는 장치이며, MME(105)의 제어에 따라서 데이터 베어러를 생성하거나 제거할 수 있다. MME(105)는 단말에 대한 이동성 관리 기능은 물론 각종 제어 기능을 담당하는 장치로 복수의 eNB들과 연결될 수 있다. In Figure 1, eNBs 115, 120, 125, and 130 may correspond to Node B of the UMTS system. The eNB 115 is connected to the UE 135 through a wireless channel and can perform a more complex role than the Node B. In the LTE system, all user traffic, including real-time services such as VoIP (voice over IP) through the Internet protocol, is serviced through a shared channel, so status information such as buffer status of UEs, available transmission power status, and channel status A device that collects and performs scheduling is required, and the eNB (115, 120, 125, 130) can be responsible for this. One eNB can usually control multiple cells. For example, in order to implement a transmission speed of 100 Mbps, the LTE system can use orthogonal frequency division multiplexing (OFDM) as a wireless access technology in, for example, a 20 MHz bandwidth. Additionally, an adaptive modulation & coding (AMC) method that determines the modulation scheme and channel coding rate according to the channel status of the terminal can be applied. The S-GW (110) is a device that provides data bearers, and can create or remove data bearers under the control of the MME (105). The MME 105 is a device responsible for various control functions as well as mobility management functions for the terminal and can be connected to a plurality of eNBs.
도 2는 본 개시의 실시 예에 따른 LTE 시스템에서 무선 프로토콜 구조를 도시한 도면이다.Figure 2 is a diagram illustrating a wireless protocol structure in an LTE system according to an embodiment of the present disclosure.
도 2를 참조하면, LTE 시스템의 무선 프로토콜은 단말과 eNB에서 각각 PDCP (packet data convergence protocol, 205, 240), RLC (radio link control, 210, 235), MAC (medium access control, 215, 230)으로 이루어진다. PDCP(205, 240)는 IP 헤더 압축/복원 등의 동작을 담당할 수 있다. PDCP는 다음의 기능들 중 하나 이상을 포함할 수 있다.Referring to FIG. 2, the wireless protocols of the LTE system include PDCP (packet data convergence protocol, 205, 240), RLC (radio link control, 210, 235), and MAC (medium access control, 215, 230) in the terminal and eNB, respectively. It consists of PDCP (205, 240) may be responsible for operations such as IP header compression/restoration. PDCP may include one or more of the following functions:
- 헤더 압축 및 압축 해제 기능(header compression and decompression)- Header compression and decompression function
- 사용자 데이터 전송 기능 (transfer of user data)- User data transfer function (transfer of user data)
- 순차적 전달 기능(in-sequence delivery of upper layer PDUs at PDCP re-establishment procedure for RLC AM)- In-sequence delivery of upper layer PDUs at PDCP re-establishment procedure for RLC AM
- 순서 재정렬 기능(for split bearers in DC (only support for RLC AM): PDCP PDU routing for transmission and PDCP PDU reordering for reception)- Order reordering function (for split bearers in DC (only support for RLC AM): PDCP PDU routing for transmission and PDCP PDU reordering for reception)
- 중복 탐지 기능(duplicate detection of lower layer SDUs at PDCP re-establishment procedure for RLC AM)- Duplicate detection of lower layer SDUs at PDCP re-establishment procedure for RLC AM
- 재전송 기능(retransmission of PDCP SDUs at handover and, for split bearers in DC, of PDCP PDUs at PDCP data-recovery procedure, for RLC AM)- Retransmission function (retransmission of PDCP SDUs at handover and, for split bearers in DC, of PDCP PDUs at PDCP data-recovery procedure, for RLC AM)
- 암호화 및 복호화 기능(ciphering and deciphering)- Encryption and decryption function (ciphering and deciphering)
- 타이머 기반 SDU 삭제 기능(timer-based SDU discard in uplink.)- Timer-based SDU discard in uplink.
RLC(210, 235)는 PDCP PDU(protocol data unit)를 적절한 크기로 재구성해서 ARQ 동작 등을 수행할 수 있다. RLC는 다음의 기능들 중 하나 이상을 포함할 수 있다.The RLCs 210 and 235 can perform ARQ operations, etc. by reconfiguring the PDCP PDU (protocol data unit) to an appropriate size. RLC may include one or more of the following functions:
- 데이터 전송 기능(transfer of upper layer PDUs)- Data transfer function (transfer of upper layer PDUs)
- ARQ 기능(error correction through ARQ (only for AM data transfer))- ARQ function (error correction through ARQ (only for AM data transfer))
- 접합, 분할, 재조립 기능(concatenation, segmentation and reassembly of RLC SDUs (only for UM and AM data transfer))- Concatenation, segmentation and reassembly of RLC SDUs (only for UM and AM data transfer)
- 재분할 기능(re-segmentation of RLC data PDUs (only for AM data transfer))- Re-segmentation of RLC data PDUs (only for AM data transfer)
- 순서 재정렬 기능(reordering of RLC data PDUs (only for UM and AM data transfer)- Reordering of RLC data PDUs (only for UM and AM data transfer)
- 중복 탐지 기능(duplicate detection (only for UM and AM data transfer))- Duplicate detection (only for UM and AM data transfer)
- 오류 탐지 기능(protocol error detection (only for AM data transfer))- Error detection function (protocol error detection (only for AM data transfer))
- RLC SDU 삭제 기능(RLC SDU discard (only for UM and AM data transfer))- RLC SDU deletion function (RLC SDU discard (only for UM and AM data transfer))
- RLC 재수립(또는, 재설립) 기능(RLC re-establishment)- RLC re-establishment (or, re-establishment) function (RLC re-establishment)
MAC(215, 230)은 한 단말에 구성된 여러 RLC 계층 장치들과 연결되며, RLC PDU들을 MAC PDU에 다중화하고 MAC PDU로부터 RLC PDU들을 역다중화하는 동작을 수행할 수 있다. MAC은 다음의 기능들 중 하나 이상을 포함할 수 있다.The MAC (215, 230) is connected to several RLC layer devices configured in one terminal, and can perform operations of multiplexing RLC PDUs to MAC PDUs and demultiplexing RLC PDUs from MAC PDUs. A MAC may include one or more of the following functions:
- 맵핑 기능(MAPPING between logical channels and transport channels)- Mapping function (MAPPING between logical channels and transport channels)
- 다중화 및 역다중화 기능(multiplexing/demultiplexing of MAC SDUs belonging to one or different logical channels into/from transport blocks (TB) delivered to/from the physical layer on transport channels)- Multiplexing and demultiplexing function (multiplexing/demultiplexing of MAC SDUs belonging to one or different logical channels into/from transport blocks (TB) delivered to/from the physical layer on transport channels)
- 스케쥴링 정보 보고 기능(scheduling information reporting)- Scheduling information reporting function
- HARQ 기능(error correction through HARQ)- HARQ function (error correction through HARQ)
- 로지컬 채널 간 우선 순위 조절 기능(priority handling between logical channels of one UE)- Priority handling between logical channels of one UE
- 단말간 우선 순위 조절 기능(priority handling between UEs by means of dynamic scheduling)- Priority handling between UEs by means of dynamic scheduling
- MBMS 서비스 확인 기능(MBMS service identification)- MBMS service identification function
- 전송 포맷 선택 기능(transport format selection)- Transport format selection function
- 패딩 기능(padding)- Padding function (padding)
물리 계층(physical layer, PHY, 220, 225)은 상위 계층 데이터를 채널 코딩 및 변조하고, OFDM 심벌로 만들어서 무선 채널로 전송하거나, 무선 채널을 통해 수신한 OFDM 심벌을 복조하고 채널 디코딩해서 상위 계층으로 전달하는 동작을 할 수 있다.The physical layer (PHY, 220, 225) channel-codes and modulates upper-layer data, creates OFDM symbols and transmits them over a wireless channel, or demodulates and channel-decodes OFDM symbols received through wireless channels and transmits them to the upper layer. You can do the conveying action.
도 3은 본 개시의 실시 예에 따른 차세대 이동통신 시스템의 구조를 도시한 도면이다. Figure 3 is a diagram showing the structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
도 3을 참조하면, 차세대 이동통신 시스템(이하 NR 혹은 5G)의 무선 액세스 네트워크는 차세대 기지국(new radio node B, 이하 NR gNB, gNB 또는 기지국)(310) 과 NR CN (305, new radio core network)를 포함하여 구성될 수 있다. 사용자 단말(new radio user equipment, 이하 NR UE 또는 단말)(315)은 NR gNB(310) 및 NR CN(305)를 통해 외부 네트워크에 접속할 수 있다.Referring to FIG. 3, the radio access network of the next-generation mobile communication system (hereinafter referred to as NR or 5G) includes a next-generation base station (new radio node B, hereinafter referred to as NR gNB, gNB or base station) 310 and NR CN (305, new radio core network). ) may be configured to include. A user terminal (new radio user equipment, hereinafter referred to as NR UE or terminal) 315 may access an external network through the NR gNB 310 and the NR CN 305.
도 3에서 NR gNB(310)는 LTE 시스템의 eNB에 대응될 수 있다. NR gNB는 NR UE(315)와 무선 채널로 연결되며 eNB보다 더 월등한 서비스를 제공해줄 수 있다. 차세대 이동통신 시스템에서는 모든 사용자 트래픽이 공용 채널(shared channel)을 통해 서비스되므로, UE들의 버퍼 상태, 가용 전송 전력 상태, 채널 상태 등의 상태 정보를 취합해서 스케줄링을 하는 장치가 필요하며, 이를 NR gNB(310)가 담당할 수 있다. 하나의 NR gNB는 통상 복수의 셀들을 제어할 수 있다. LTE 대비 초고속 데이터 전송을 구현하기 위해서 LTE의 최대 대역폭 이상의 대역폭을 이용할 수 있고, OFDM 방식을 무선 접속 기술로 하여 추가적으로 빔포밍 기술이 접목될 수 있다. 또한 단말의 채널 상태에 맞춰 변조 방식(modulation scheme)과 채널 코딩률(channel coding rate)을 결정하는 AMC 방식을 적용할 수 있다. NR CN(305)은 이동성 지원, 베어러 설정, QoS 설정 등의 기능을 수행할 수 있다. NR CN은 단말에 대한 이동성 관리 기능은 물론 각종 제어 기능을 담당하는 장치로 복수의 기지국 들과 연결될 수 있다. 또한 차세대 이동통신 시스템은 LTE 시스템과도 연동될 수 있으며, NR CN(305)이 MME(325)와 네트워크 인터페이스를 통해 연결될 수 있다. MME(325)는 eNB(320)와 연결될 수 있다.In FIG. 3, the NR gNB 310 may correspond to an eNB in the LTE system. NR gNB is connected to the NR UE 315 through a wireless channel and can provide superior services than eNB. 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 buffer status, available transmission power status, and channel status of UEs and performs scheduling is required, which is NR gNB. (310) can be in charge. One NR gNB can typically control multiple cells. In order to implement ultra-high-speed data transmission compared to LTE, a bandwidth exceeding the maximum bandwidth of LTE can be used, and beamforming technology can be additionally applied using OFDM as a wireless access technology. Additionally, the AMC method that determines the modulation scheme and channel coding rate according to the channel status of the terminal can be applied. The NR CN 305 can perform functions such as mobility support, bearer setup, and QoS setup. NR CN is a device that handles various control functions as well as mobility management functions for the terminal and can be connected to multiple base stations. Additionally, the next-generation mobile communication system can also be linked to the LTE system, and the NR CN (305) can be connected to the MME (325) through a network interface. MME 325 may be connected to eNB 320.
도 4는 본 개시의 실시 예에 따른 차세대 이동통신 시스템의 무선 프로토콜 구조를 나타낸 도면이다.Figure 4 is a diagram showing the wireless protocol structure of a next-generation mobile communication system according to an embodiment of the present disclosure.
도 4를 참조하면, 차세대 이동통신 시스템의 무선 프로토콜은 단말과 NR 기지국에서 각각 NR SDAP(service data adaptation protocol, 405, 450), NR PDCP(410, 445), NR RLC(415, 440), NR MAC(420, 435)으로 이루어질 수 있다. Referring to FIG. 4, the wireless protocols of the next-generation mobile communication system are NR SDAP (service data adaptation protocol, 405, 450), NR PDCP (410, 445), NR RLC (415, 440), and NR at the terminal and NR base station, respectively. It may be composed of MAC (420, 435).
NR SDAP(405, 450)은 다음의 기능들 중 하나 이상을 포함할 수 있다.NR SDAP (405, 450) may include one or more of the following functions.
- 사용자 데이터의 전달 기능(transfer of user plane data)- Transfer of user plane data
- 상향 링크와 하향 링크에 대해서 QoS flow와 데이터 베어러의 맵핑 기능(mapping between a QoS flow and a DRB for both DL and UL)- Mapping function of QoS flow and data bearer for uplink and downlink (mapping between a QoS flow and a DRB for both DL and UL)
- 상향 링크와 하향 링크에 대해서 QoS flow ID를 마킹 기능(marking QoS flow ID in both DL and UL packets)- Marking QoS flow ID in both DL and UL packets for uplink and downlink
- 상향 링크 SDAP PDU들에 대해서 relective QoS flow를 데이터 베어러에 맵핑 (reflective QoS flow to DRB mapping for the UL SDAP PDUs). - Mapping relective QoS flow to data bearer for uplink SDAP PDUs (reflective QoS flow to DRB mapping for the UL SDAP PDUs).
SDAP 계층 장치에 대해 단말은 RRC 메시지에 의해 각 PDCP 계층 장치 별로 혹은 베어러 별로 혹은 로지컬 채널 별로 SDAP 계층 장치의 헤더를 사용할 지 여부 혹은 SDAP 계층 장치의 기능을 사용할 지 여부가 설정될 수 있으며, SDAP 헤더가 설정된 경우, SDAP 헤더의 NAS QoS 반영 설정 1비트 지시자(NAS reflective QoS)와 AS QoS 반영 설정 1비트 지시자(AS reflective QoS)로 단말이 상향 링크와 하향 링크의 QoS flow와 데이터 베어러에 대한 맵핑 정보를 갱신 혹은 재설정할 수 있도록 지시할 수 있다. SDAP 헤더는 QoS를 나타내는 QoS flow ID 정보를 포함할 수 있다. QoS 정보는 원할한 서비스를 지원하기 위한 데이터 처리 우선 순위, 스케쥴링 정보 등으로 사용될 수 있다. For SDAP layer devices, the terminal can configure whether to use the header of the SDAP layer device or use the function of the SDAP layer device for each PDCP layer device, each bearer, or each logical channel by an RRC message, and the SDAP header When set, the NAS QoS reflection setting 1-bit indicator (NAS reflective QoS) and the AS QoS reflection setting 1-bit indicator (AS reflective QoS) in the SDAP header provide mapping information for the uplink and downlink QoS flows and data bearers. You can instruct to update or reset. The SDAP header may include QoS flow ID information indicating QoS. QoS information can be used as data processing priority and scheduling information to support smooth service.
NR PDCP(410, 445)는 다음의 기능들 중 하나 이상을 포함할 수 있다. NR PDCP 410, 445 may include one or more of the following functions.
헤더 압축 및 압축 해제 기능(header compression and decompression: ROHC only)Header compression and decompression (ROHC only)
- 사용자 데이터 전송 기능(transfer of user data)- Transfer of user data
- 순차적 전달 기능(in-sequence delivery of upper layer PDUs)- In-sequence delivery of upper layer PDUs
- 비순차적 전달 기능(out-of-sequence delivery of upper layer PDUs)- Out-of-sequence delivery of upper layer PDUs
- 순서 재정렬 기능(pdcp pdu reordering for reception)- Order reordering function (pdcp pdu reordering for reception)
- 중복 탐지 기능(duplicate detection of lower layer SDUs)- Duplicate detection of lower layer SDUs
- 재전송 기능(retransmission of PDCP SDUs)- Retransmission of PDCP SDUs
- 암호화 및 복호화 기능(ciphering and deciphering)- Encryption and decryption function (ciphering and deciphering)
- 타이머 기반 SDU 삭제 기능(timer-based SDU discard in uplink.)- Timer-based SDU discard in uplink.
상기에서 NR PDCP 장치의 순서 재정렬 기능(reordering)은 하위 계층에서 수신한 PDCP PDU들을 PDCP SN(sequence number)을 기반으로 순서대로 재정렬하는 기능을 말하며, 재정렬된 순서대로 데이터를 상위 계층에 전달하는 기능을 포함할 수 있으며, 혹은 순서를 고려하지 않고, 바로 전달하는 기능을 포함할 수 있으며, 순서를 재정렬하여 유실된 PDCP PDU들을 기록하는 기능을 포함할 수 있으며, 유실된 PDCP PDU들에 대한 상태 보고를 송신 측에 하는 기능을 포함할 수 있으며, 유실된 PDCP PDU들에 대한 재전송을 요청하는 기능을 포함할 수 있다. In the above, the reordering function of the NR PDCP device refers to the function of rearranging the PDCP PDUs received from the lower layer in order based on the PDCP SN (sequence number), and delivering data to the upper layer in the reordered order. It may include a function to directly transmit without considering the order, it may include a function to rearrange the order and record lost PDCP PDUs, and it may include a status report on the lost PDCP PDUs. It may include a function to the transmitting side, and may include a function to request retransmission of lost PDCP PDUs.
NR RLC(415, 440)는 다음의 기능들 중 하나 이상을 포함할 수 있다. NR RLC 415, 440 may include one or more of the following functions.
- 데이터 전송 기능(transfer of upper layer PDUs)- Data transfer function (transfer of upper layer PDUs)
- 순차적 전달 기능(in-sequence delivery of upper layer PDUs)- In-sequence delivery of upper layer PDUs
- 비순차적 전달 기능(out-of-sequence delivery of upper layer PDUs)- Out-of-sequence delivery of upper layer PDUs
- ARQ 기능(error correction through ARQ)- ARQ function (error correction through ARQ)
- 접합, 분할, 재조립 기능(concatenation, segmentation and reassembly of RLC SDUs)- Concatenation, segmentation and reassembly of RLC SDUs
- 재분할 기능(re-segmentation of RLC data PDUs)- Re-segmentation of RLC data PDUs
- 순서 재정렬 기능(reordering of RLC data PDUs)- Reordering of RLC data PDUs
- 중복 탐지 기능(duplicate detection)- Duplicate detection function
- 오류 탐지 기능(protocol error detection)- Error detection function (protocol error detection)
- RLC SDU 삭제 기능(RLC SDU discard)- RLC SDU deletion function (RLC SDU discard)
- RLC 재수립 기능(RLC re-establishment)- RLC re-establishment function
상기에서 NR RLC 장치의 순차적 전달 기능(in-sequence delivery)은 하위 계층으로부터 수신한 RLC SDU들을 순서대로 상위 계층에 전달하는 기능을 말하며, 원래 하나의 RLC SDU가 여러 개의 RLC SDU들로 분할되어 수신된 경우, 이를 재조립하여 전달하는 기능을 포함할 수 있으며, 수신한 RLC PDU들을 RLC SN(sequence number) 혹은 PDCP SN(sequence number)를 기준으로 재정렬하는 기능을 포함할 수 있으며, 순서를 재정렬하여 유실된 RLC PDU들을 기록하는 기능을 포함할 수 있으며, 유실된 RLC PDU들에 대한 상태 보고를 송신 측에 하는 기능을 포함할 수 있으며, 유실된 RLC PDU들에 대한 재전송을 요청하는 기능을 포함할 수 있으며, 유실된 RLC SDU가 있을 경우, 유실된 RLC SDU 이전까지의 RLC SDU들만을 순서대로 상위 계층에 전달하는 기능을 포함할 수 있으며, 혹은 유실된 RLC SDU가 있어도 소정의 타이머가 만료되었다면 타이머가 시작되기 전에 수신된 모든 RLC SDU들을 순서대로 상위 계층에 전달하는 기능을 포함할 수 있으며, 혹은 유실된 RLC SDU가 있어도 소정의 타이머가 만료되었다면 현재까지 수신된 모든 RLC SDU들을 순서대로 상위 계층에 전달하는 기능을 포함할 수 있다. 또한, RLC PDU들을 수신하는 순서대로(예를 들어, 일련번호, Sequence number의 순서와 상관없이, 도착하는 순으로) 처리하여 PDCP 장치로 순서와 상관없이(out-of sequence delivery) 전달할 수도 있으며, 세그먼트(segment)인 경우에는 버퍼에 저장되어 있거나 추후에 수신될 세그먼트들을 수신하여 온전한 하나의 RLC PDU로 재구성한 후, 처리하여 PDCP 장치로 전달할 수 있다. NR RLC 계층은 접합(또는, 연접)(concatenation) 기능을 포함하지 않을 수 있고 기능을 NR MAC 계층에서 수행하거나 NR MAC 계층의 다중화(multiplexing) 기능으로 대체할 수 있다. In the above, the in-sequence delivery function of the NR RLC device refers to the function of delivering RLC SDUs received from the lower layer to the upper layer in order. Originally, one RLC SDU is divided into several RLC SDUs and received. If so, it may include a function to reassemble and transmit them, and may include a function to rearrange the received RLC PDUs based on the RLC SN (sequence number) or PDCP SN (sequence number), and rearrange the order. It may include a function to record lost RLC PDUs, it may include a function to report the status of lost RLC PDUs to the transmitting side, and it may include a function to request retransmission of lost RLC PDUs. When there is a lost RLC SDU, it may include a function of transmitting only the RLC SDUs up to the lost RLC SDU to the upper layer in order. Or, even if there is a lost RLC SDU, if a predetermined timer has expired, the timer may be included. It may include a function to deliver all RLC SDUs received to the upper layer in order before the start of the service, or if a predetermined timer expires even if there is a lost RLC SDU, all RLC SDUs received to date are delivered to the upper layer in order. It may include a transmission function. In addition, RLC PDUs may be processed in the order in which they are received (e.g., in the order of arrival, regardless of the order of the serial number or sequence number) and delivered out-of-sequence delivery to the PDCP device. In the case of a segment, segments stored in a buffer or to be received in the future can be received, reconstructed into one complete RLC PDU, processed, and transmitted to the PDCP device. The NR RLC layer may not include a concatenation function and the function may be performed in the NR MAC layer or replaced with the multiplexing function of the NR MAC layer.
NR RLC 장치의 비순차적 전달 기능(out-of-sequence delivery)은 하위 계층으로부터 수신한 RLC SDU들을 순서와 상관없이 바로 상위 계층으로 전달하는 기능을 말하며, 원래 하나의 RLC SDU가 여러 개의 RLC SDU들로 분할되어 수신된 경우, 이를 재조립하여 전달하는 기능을 포함할 수 있으며, 수신한 RLC PDU들의 RLC SN 혹은 PDCP SN을 저장하고 순서를 정렬하여 유실된 RLC PDU들을 기록해두는 기능을 포함할 수 있다. The out-of-sequence delivery function of the NR RLC device refers to the function of directly delivering RLC SDUs received from a lower layer to the upper layer regardless of the order. Originally, one RLC SDU is divided into several RLC SDUs. If it is received in fragments, it may include a function to reassemble and transmit it, and it may include a function to store the RLC SN or PDCP SN of the received RLC PDUs, sort the order, and record lost RLC PDUs. .
NR MAC(420, 435)은 한 단말에 구성된 여러 NR RLC 계층 장치들과 연결될 수 있으며, NR MAC은 다음의 기능들 중 하나 이상을 포함할 수 있다. The NR MAC (420, 435) may be connected to multiple NR RLC layer devices configured in one terminal, and the NR MAC may include one or more of the following functions.
- 맵핑 기능(mapping between logical channels and transport channels)- Mapping function (mapping between logical channels and transport channels)
- 다중화 및 역다중화 기능(multiplexing/demultiplexing of MAC SDUs)- Multiplexing and demultiplexing function (multiplexing/demultiplexing of MAC SDUs)
- 스케쥴링 정보 보고 기능(scheduling information reporting)- Scheduling information reporting function
- HARQ 기능(error correction through HARQ)- HARQ function (error correction through HARQ)
- 논리 채널 간 우선 순위 조절 기능(priority handling between logical channels of one UE)- Priority handling between logical channels of one UE
- 단말간 우선 순위 조절 기능(priority handling between UEs by means of dynamic scheduling)- Priority handling between UEs by means of dynamic scheduling
- MBMS 서비스 확인 기능(MBMS service identification)- MBMS service identification function
- 전송 포맷 선택 기능(transport format selection)- Transport format selection function
- 패딩 기능(padding)- Padding function (padding)
NR PHY 계층(425, 430)은 상위 계층 데이터를 채널 코딩 및 변조하고, OFDM 심벌로 만들어서 무선 채널로 전송하거나, 무선 채널을 통해 수신한 OFDM 심벌을 복조하고 채널 디코딩해서 상위 계층으로 전달하는 동작을 수행할 수 있다.The NR PHY layers (425, 430) channel code and modulate upper layer data, create OFDM symbols and transmit them to the wireless channel, or demodulate and channel decode the OFDM symbols received through the wireless channel and transmit them to the upper layer. It can be done.
도 5는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV(uncrewed aerial vehicle) 단말이 측정 보고(measurement report)를 기지국에게 전송하는 절차를 도시한 도면이다. FIG. 5 is a diagram illustrating a procedure in which a UAV (uncrewed aerial vehicle) terminal transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
UAV 단말은 지상 단말(terrestrial UE) 보다 더 높은 위치에서 운용될 수 있으며 따라서 지상 단말보다 더 긴 가시거리를 가지는 특징이 있을 수 있다. 따라서, 지상 단말에 비해 UAV 단말은 더 많은 셀로부터 하향링크(downlink, 이하 DL) 간섭을 수신할 수 있다. 즉, UAV 단말은 지상 단말보다 더 많은 주변 셀로부터 높은 레벨의 DL 간섭을 수신하는 특징이 있다. 마찬가지로, UAV 단말은 지상 단말에 비해 더 많은 셀들로 상향링크(uplink, 이하 UL) 간섭을 초래하는 특징이 있다. 본 개시에서는 UAV 단말의 특징을 고려한 측정 보고를 기지국에게 보고하는 방법을 제안한다. A UAV terminal may operate at a higher location than a terrestrial UE and may therefore have a longer visibility range than a terrestrial UE. Therefore, compared to a ground terminal, a UAV terminal can receive downlink (DL) interference from more cells. In other words, UAV terminals have the characteristic of receiving a high level of DL interference from more surrounding cells than terrestrial terminals. Likewise, UAV terminals have the characteristic of causing uplink (UL) interference with more cells than terrestrial terminals. In this disclosure, we propose a method of reporting a measurement report considering the characteristics of a UAV terminal to a base station.
도 5를 참조하면, UAV 단말(505)은 NR 기지국(510)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(515)에 있을 수 있다. Referring to FIG. 5, the UAV terminal 505 may establish an RRC connection with the NR base station 510 and be in the RRC connected mode (RRC_CONNECTED) 515.
520 단계에서, 단말은 기지국에게 단말 능력 정보 메시지(UECapabilityInformation)를 전송할 수 있다. 단말 능력 정보 메시지에는 측정 보고 설정(reporting configuration)에 포함될 수 있는 numberOfTriggeringCells의 지원 여부(예를 들어, multipleCellsMeasExtension)가 포함될 수 있다. multipleCellsMeasExtension은 단말이 기지국이 설정한 셀의 개수(numberOfTriggeringCells)의 셀에 기반하여 측정 보고의 전송 여부를 결정할 수 있는 능력을 지원하는지 여부를 나타낼 수 있다. 또는, 상기 multipleCellsMeasExtension은 기지국이 설정한 셀의 개수에 기반하여 트리거링된 측정 보고를 지원하는지 여부를 정의할 수 있다 (This field defines whether the UE supports measurement reporting triggered based on a number of cells). In step 520, the terminal may transmit a UECapabilityInformation message to the base station. The terminal capability information message may include whether numberOfTriggeringCells is supported (eg, multipleCellsMeasExtension), which may be included in the reporting configuration. multipleCellsMeasExtension may indicate whether the terminal supports the ability to determine whether to transmit a measurement report based on the number of cells (numberOfTriggeringCells) set by the base station. Alternatively, the multipleCellsMeasExtension may define whether the base station supports measurement reporting triggered based on the number of cells set (This field defines whether the UE supports measurement reporting triggered based on a number of cells).
525 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume or RRCReconfiguration)를 전송할 수 있다. 일 실시 예로서, 측정 설정 정보에는 측정 대상에 대한 조건이 담긴 측정 대상 정보(measObjectToAddModList)가 포함될 수 있으며, 측정 이벤트의 엔터링(entering) 조건, 리빙(leaving) 조건, 또는 보고 조건을 포함하는 보고 설정 정보(reportConfigToAddModList)가 포함될 수 있다. measObjectToAddModList는 하나 또는 복수 개의 MeasObjectToAddMod로 구성될 수 있으며, 각 MeasObjectToAddMod는 다음과 같이 구성될 수 있다.In step 525, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. As an example, the measurement setting information may include measurement object information (measObjectToAddModList) containing conditions for the measurement object, and a report including entering conditions, leaving conditions, or reporting conditions of the measurement event. Configuration information (reportConfigToAddModList) may be included. measObjectToAddModList can be composed of one or multiple MeasObjectToAddMods, and each MeasObjectToAddMod can be composed as follows.
Figure PCTKR2023017097-appb-img-000001
Figure PCTKR2023017097-appb-img-000001
Figure PCTKR2023017097-appb-img-000002
Figure PCTKR2023017097-appb-img-000002
Figure PCTKR2023017097-appb-img-000003
Figure PCTKR2023017097-appb-img-000003
Figure PCTKR2023017097-appb-img-000004
Figure PCTKR2023017097-appb-img-000004
Figure PCTKR2023017097-appb-img-000005
Figure PCTKR2023017097-appb-img-000005
Figure PCTKR2023017097-appb-img-000006
Figure PCTKR2023017097-appb-img-000006
Figure PCTKR2023017097-appb-img-000007
Figure PCTKR2023017097-appb-img-000007
Figure PCTKR2023017097-appb-img-000008
Figure PCTKR2023017097-appb-img-000008
ReportConfigToAddModList는 하나 또는 복수 개의 ReportConfigToAddMod로 구성될 수 있으며, 각 ReportConfigToAddMod는 다음과 같이 구성될 수 있다.ReportConfigToAddModList can be composed of one or multiple ReportConfigToAddMods, and each ReportConfigToAddMod can be composed as follows.
Figure PCTKR2023017097-appb-img-000009
Figure PCTKR2023017097-appb-img-000009
Figure PCTKR2023017097-appb-img-000010
Figure PCTKR2023017097-appb-img-000010
Figure PCTKR2023017097-appb-img-000011
Figure PCTKR2023017097-appb-img-000011
Figure PCTKR2023017097-appb-img-000012
Figure PCTKR2023017097-appb-img-000012
Figure PCTKR2023017097-appb-img-000013
Figure PCTKR2023017097-appb-img-000013
Figure PCTKR2023017097-appb-img-000014
Figure PCTKR2023017097-appb-img-000014
Figure PCTKR2023017097-appb-img-000015
Figure PCTKR2023017097-appb-img-000015
Figure PCTKR2023017097-appb-img-000016
Figure PCTKR2023017097-appb-img-000016
Figure PCTKR2023017097-appb-img-000017
Figure PCTKR2023017097-appb-img-000017
Figure PCTKR2023017097-appb-img-000018
Figure PCTKR2023017097-appb-img-000018
Figure PCTKR2023017097-appb-img-000019
Figure PCTKR2023017097-appb-img-000019
Figure PCTKR2023017097-appb-img-000020
Figure PCTKR2023017097-appb-img-000020
Figure PCTKR2023017097-appb-img-000021
Figure PCTKR2023017097-appb-img-000021
Figure PCTKR2023017097-appb-img-000022
Figure PCTKR2023017097-appb-img-000022
Figure PCTKR2023017097-appb-img-000023
Figure PCTKR2023017097-appb-img-000023
본 개시의 일 실시 예로서, reportType은 eventTriggered로 설정될 수 있으며, 이벤트 설정 정보(예를 들어, EventA3, EventA4, EventA5, EventB1, EventB2)에 numberOfTriggeringCells이 포함될 수 있다. numberOfTriggeringCells은 측정 보고를 트리거링하기 위한 이벤트가 만족되어야 하는 탐지된 셀의 수를 지시할 수 있다 (numberOfTriggeringCells IE indicates the number of cells detected that are required to fulfill an event for a measurement report to be triggered).As an example of the present disclosure, reportType may be set to eventTriggered, and numberOfTriggeringCells may be included in event setting information (eg, EventA3, EventA4, EventA5, EventB1, EventB2). numberOfTriggeringCells may indicate the number of detected cells for which an event must be satisfied to trigger a measurement report (numberOfTriggeringCells IE indicates the number of cells detected that are required to fulfill an event for a measurement report to be triggered).
이벤트의 엔터링(entering) 또는 리빙(leaving) 조건은 하기와 같을 수 있다. The entering or leaving conditions of the event may be as follows.
Figure PCTKR2023017097-appb-img-000024
Figure PCTKR2023017097-appb-img-000024
Figure PCTKR2023017097-appb-img-000025
Figure PCTKR2023017097-appb-img-000025
Figure PCTKR2023017097-appb-img-000026
Figure PCTKR2023017097-appb-img-000026
Figure PCTKR2023017097-appb-img-000027
Figure PCTKR2023017097-appb-img-000027
Figure PCTKR2023017097-appb-img-000028
Figure PCTKR2023017097-appb-img-000028
Figure PCTKR2023017097-appb-img-000029
Figure PCTKR2023017097-appb-img-000029
Figure PCTKR2023017097-appb-img-000030
Figure PCTKR2023017097-appb-img-000030
Figure PCTKR2023017097-appb-img-000031
Figure PCTKR2023017097-appb-img-000031
530 단계에서, 단말은 525 단계에서 수신한 측정 설정 정보에 기반하여 측정 보고(measurement report)의 전송 여부를 판단할 수 있다. 구체적으로, 단말은 하기 조건 중 적어도 하나가 만족하는 경우 측정 보고 절차를 시작 (initiate)할 수 있다. In step 530, the terminal may determine whether to transmit a measurement report based on the measurement setting information received in step 525. Specifically, the terminal may initiate the measurement reporting procedure when at least one of the following conditions is satisfied.
Figure PCTKR2023017097-appb-img-000032
Figure PCTKR2023017097-appb-img-000032
Figure PCTKR2023017097-appb-img-000033
Figure PCTKR2023017097-appb-img-000033
단말은 530 단계에서 측정 보고 절차가 시작된 경우, 단말은 535 단계에서 기지국에게 측정 보고를 전송할 수 있다. 단말이 기지국에게 측정 보고를 전송하는 절차는 하기와 같을 수 있다. If the measurement report procedure starts in step 530, the terminal may transmit a measurement report to the base station in step 535. The procedure for the terminal to transmit a measurement report to the base station may be as follows.
Figure PCTKR2023017097-appb-img-000034
Figure PCTKR2023017097-appb-img-000034
Figure PCTKR2023017097-appb-img-000035
Figure PCTKR2023017097-appb-img-000035
Figure PCTKR2023017097-appb-img-000036
Figure PCTKR2023017097-appb-img-000036
Figure PCTKR2023017097-appb-img-000037
Figure PCTKR2023017097-appb-img-000037
Figure PCTKR2023017097-appb-img-000038
Figure PCTKR2023017097-appb-img-000038
Figure PCTKR2023017097-appb-img-000039
Figure PCTKR2023017097-appb-img-000039
Figure PCTKR2023017097-appb-img-000040
Figure PCTKR2023017097-appb-img-000040
Figure PCTKR2023017097-appb-img-000041
Figure PCTKR2023017097-appb-img-000041
Figure PCTKR2023017097-appb-img-000042
Figure PCTKR2023017097-appb-img-000042
Figure PCTKR2023017097-appb-img-000043
Figure PCTKR2023017097-appb-img-000043
Figure PCTKR2023017097-appb-img-000044
Figure PCTKR2023017097-appb-img-000044
Figure PCTKR2023017097-appb-img-000045
Figure PCTKR2023017097-appb-img-000045
Figure PCTKR2023017097-appb-img-000046
Figure PCTKR2023017097-appb-img-000046
Figure PCTKR2023017097-appb-img-000047
Figure PCTKR2023017097-appb-img-000047
Figure PCTKR2023017097-appb-img-000048
Figure PCTKR2023017097-appb-img-000048
Figure PCTKR2023017097-appb-img-000049
Figure PCTKR2023017097-appb-img-000049
도 6은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 측정 보고를 기지국에게 전송 시 핸드오버 또는 간섭 완화(mitigation)의 효율성이 저하되는 일 예를 도시한 도면이다. FIG. 6 is a diagram illustrating an example in which the efficiency of handover or interference mitigation is reduced when a UAV terminal transmits a measurement report to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
도 6를 참조하면, UAV 단말(605)은 NR 기지국(610)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(515)에 있을 수 있다. Referring to FIG. 6, the UAV terminal 605 may establish an RRC connection with the NR base station 610 and be in the RRC connected mode (RRC_CONNECTED) 515.
620 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 (UECapabilityInformation) 메시지의 전송은 전술한 실시 예(예를 들어, 도 5)를 따를 수 있다. In step 620, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the UECapabilityInformation message may follow the above-described embodiment (eg, FIG. 5).
625 단계에서, 기지국은 단말에게 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume or RRCReconfiguration)를 전송할 수 있다. 상기 RRC 메시지(예를 들어, RRCResume or RRCReconfiguration)의 전송은 전술한 실시 예(예를 들어, 도 5)를 따를 수 있다. 설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, 상기 eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정한 것으로 가정한다.In step 625, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. Transmission of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiment (eg, FIG. 5). For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, the eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied. ) is assumed to be set.
630 단계에서, 단말은 625 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 구체적으로, 단말은 하기 조건 중 적어도 하나가 만족되는 경우 측정 보고 절차를 시작할 수 있다. In step 630, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 625. Specifically, the terminal may start the measurement reporting procedure when at least one of the following conditions is satisfied.
Figure PCTKR2023017097-appb-img-000050
Figure PCTKR2023017097-appb-img-000050
일 실시 예로서, Cell 1, Cell 2, 및 Cell 3에 대한 EventA3의 엔트리(entry) 조건이 충족되는 경우, 단말은 cellsTriggeredList에 Cell 1, Cell 2, 및 Cell 3을 포함시킬 수 있다. 단말은 cellsTriggeredList에 포함된 셀들의 수가 numberOfTriggeringCells 보다 크거나 같은 경우 측정 보고 절차를 시작할 수 있다. As an example, if the entry conditions of EventA3 for Cell 1, Cell 2, and Cell 3 are met, the terminal may include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList. The terminal can start the measurement reporting procedure when the number of cells included in cellsTriggeredList is greater than or equal to numberOfTriggeringCells.
635 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 635, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 5).
또는, 단말은 640 단계에서, 625 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 예를 들어, Cell 1, Cell 2, Cell 3 및 Cell 4에 대한 EventA3의 엔트리 조건이 충족되는 경우, 단말은 cellsTriggeredList에 Cell 1, Cell 2, Cell 3, 및 Cell 4를 포함시킬 수 있다. 그러나 단말은 측정 보고 절차를 개시하지 않을 수 있다. 예를 들어, 단말은 하기 조건이 충족할 때는 측정 보고 절차를 개시하지 않는 특징이 있다. 하기의 조건이 충족되어 측정 보고 절차가 개시되지 않는 경우 상기 635 단계는 수행되지 않을 수 있다. Alternatively, in steps 640 and 625, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in steps 625. For example, if the entry conditions of EventA3 for Cell 1, Cell 2, Cell 3, and Cell 4 are met, the terminal may include Cell 1, Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList. However, the terminal may not initiate the measurement reporting procedure. For example, the terminal has the characteristic of not initiating a measurement reporting procedure when the following conditions are met. If the following conditions are met and the measurement reporting procedure is not initiated, step 635 may not be performed.
Figure PCTKR2023017097-appb-img-000051
Figure PCTKR2023017097-appb-img-000051
또는, 645 단계에서, 단말은 625 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 예를 들어, Cell 2, Cell 3, Cell 4에 대한 EventA3의 엔트리 조건이 충족되는 경우, 단말은 cellsTriggeredList에 Cell 2, Cell 3, Cell 4을 포함할 수 있다. 그러나 단말은 측정 보고 절차를 시작하지 않을 수 있다. 예를 들어, Cell 1은 EventA3의 하기 리빙(leaving) 조건이 충족하여 cellsTriggeredList에서 해제될 수 있다. 이때, reportOnLeave가 참(TRUE)으로 설정되지 않는 경우, 단말은 측정 보고 절차를 시작하지 않을 수 있다. 측정 보고 절차가 개시되지 않는 경우 상기 635 단계는 수행되지 않을 수 있다. Alternatively, in step 645, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 625. For example, if the entry conditions of EventA3 for Cell 2, Cell 3, and Cell 4 are met, the terminal may include Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList. However, the terminal may not start the measurement reporting procedure. For example, Cell 1 can be released from the cellsTriggeredList by satisfying the following leaving conditions of EventA3. At this time, if reportOnLeave is not set to TRUE, the terminal may not start the measurement reporting procedure. If the measurement reporting procedure is not initiated, step 635 may not be performed.
Figure PCTKR2023017097-appb-img-000052
Figure PCTKR2023017097-appb-img-000052
650 단계에서, 기지국은 단말에게 Cell 1으로 핸드오버를 지시하기 위한 RRC 메시지(RRCReconfiguration)을 전송할 수 있다. 655 단계에서, 단말은 Cell 1로의 핸드오버를 실패하여 기지국과 RRC 연결 재설립 절차(RRC connection re-establishment)를 수행할 수 있다. 단말이 Cell 1로의 핸드오버를 실패하는 이유는 다음과 같을 수 있다. In step 650, the base station may transmit an RRC message (RRCReconfiguration) to instruct the UE to handover to Cell 1. In step 655, the UE may fail the handover to Cell 1 and perform an RRC connection re-establishment procedure with the base station. The reasons why the terminal fails handover to Cell 1 may be as follows.
단말은 635 단계에서 EventA3을 충족하는 Cell 1을 포함하여 기지국에게 측정 보고를 전송하였으나, 이후에 Cell 1이 EventA3을 더 이상 충족하지 않음에도 불구하고 기지국에게 측정 보고 절차를 통해 이를 알려주지 않았기 때문일 수 있다. The terminal transmitted a measurement report to the base station in step 635, including Cell 1 that satisfies EventA3, but later, even though Cell 1 no longer satisfies EventA3, this may be because it did not inform the base station of this through the measurement report procedure. .
660 단계에서, 기지국은 Cell 1 또는 Cell 1을 포함하는 다른 기지국에게 간섭 완화 (mitigation)를 요청 또는 지시할 수 있다. 예를 들면, 하향링크 간섭 완화를 위한 빔(beam) 조절, 멀티 송수신 포인트(multi transmission reception point, mTRP), 상향링크 간섭 완화를 위한 단말의 상향링크 송신 세기 조절 중 적어도 하나를 통해 간섭 완화가 수행될 수 있다. 기지국은 Cell 1의 간섭 정도를 포함한 측정 보고에 포함된 다른 Cell 2, Cell 3의 간섭 정도를 고려하여 서로 다른 간섭 완화 정책을 수행할 수 있다. In step 660, the base station may request or instruct Cell 1 or another base station including Cell 1 to mitigate interference. For example, interference mitigation is performed through at least one of beam adjustment for downlink interference mitigation, multi transmission reception point (mTRP), and uplink transmission strength adjustment of the terminal for uplink interference mitigation. It can be. The base station can perform different interference mitigation policies by considering the interference levels of other Cells 2 and 3 included in the measurement report, including the interference level of Cell 1.
665 단계에서, Cell 1에 대한 간섭 완화 동작은 단말에게 더 이상 도움이 되지 않을 수 있다. 635 단계에서, 단말은 EventA3을 충족하는 Cell 1을 포함하여 기지국에게 측정 보고를 전송하였으나, Cell 1이 EventA3을 더 이상 충족하지 않음에도 불구하고 기지국에게 측정 보고 절차를 통해 이를 알려주지 않았기 때문일 수 있다. 이러한 불필요한 간섭 완화 동작은 Cell 1 또는 단말의 성능을 저하시킬 수 있다.In step 665, the interference mitigation operation for Cell 1 may no longer be helpful to the terminal. In step 635, the terminal transmitted a measurement report to the base station including Cell 1 that satisfies EventA3, but this may be because it did not notify the base station through the measurement report procedure even though Cell 1 no longer satisfies EventA3. These unnecessary interference mitigation operations may degrade the performance of Cell 1 or the terminal.
도 7은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 특정 셀에 대한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 7 is a diagram illustrating a process in which a UAV terminal transmits a measurement report for a specific cell to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 7을 참조하면, UAV 단말(705)은 NR 기지국(710)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(715)에 있을 수 있다. Referring to FIG. 7, the UAV terminal 705 may establish an RRC connection with the NR base station 710 and be in the RRC connected mode (RRC_CONNECTED) 715.
720 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지에는 측정 대상 설정(object configuration)에 포함될 수 있는 allowedCellsToAddModList 및 측정 보고 설정(reporting configuration)에 포함될 수 있는 useAllowedCellList의 지원 여부(예를 들어, allowedCellList)가 포함될 수 있다. allowedCellList는 기지국이 설정한 셀의 리스트(allowedCellsToAddModList)에 대해서만 상기 이벤트 엔터링 및 리빙 조건을 판단하기 위한 대상으로 할 수 있는 능력의 지원 여부를 나타낼 수 있다. 즉, 단말 능력 정보에 상기 allowedCellList가 포함되거나 상기 allowedCellList가 True로 설정되는 경우, 단말이 기지국이 설정한 셀의 리스트 (allowedCellsToAddModList)에 대해서만 이벤트 엔터링 및 리빙 조건을 판단하는 것을 지원함을 나타낼 수 있다. In step 720, the terminal may transmit a UECapabilityInformation message to the base station. The terminal capability information message may include support for allowedCellsToAddModList, which may be included in the measurement object configuration, and useAllowedCellList, which may be included in the measurement reporting configuration (e.g., allowedCellList). allowedCellList may indicate whether the ability to target only the list of cells (allowedCellsToAddModList) set by the base station for determining the event entering and living conditions is supported. That is, when the allowedCellList is included in the terminal capability information or the allowedCellList is set to True, it may indicate that the terminal supports determining event entering and living conditions only for the list of cells (allowedCellsToAddModList) set by the base station.
725 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume or RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume or RRCReconfiguration)의 전송은 전술한 실시 예(예를 들어, 도 5, 도 6)를 따를 수 있다. 설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, 상기 eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정한 것으로 가정한다. 또한, Cell 1에 대한 측정 보고를 수신하기 위한 allowedCellList를 이용한 측정 설정 정보를 설정한 것으로 가정한다. 즉, 기지국은 numberOfTriggeringCells을 3으로 설정하고, eventTriggered를 eventA3으로 설정한 첫 번째 측정 설정 정보와 allowedCellList에 Cell1을 포함하였고, useAllowedCellList를 참 (TRUE)으로 설정하였고, eventTriggered를 eventA3으로 설정한 두 번째 측정 설정 정보를 설정한 것으로 가정한다.In step 725, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. Transmission of an RRC message (e.g., RRCResume or RRCReconfiguration) may follow the above-described embodiments (e.g., FIGS. 5 and 6). For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, the eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied. ) is assumed to be set. Additionally, it is assumed that measurement setting information using allowedCellList to receive a measurement report for Cell 1 has been set. That is, the base station sets numberOfTriggeringCells to 3, includes the first measurement setting information with eventTriggered set to eventA3, Cell1 in allowedCellList, useAllowedCellList set to TRUE, and the second measurement setting setting eventTriggered to eventA3. Assume that the information has been set.
단말은 730 단계에서, 725 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 구체적으로, 단말은 하기 조건 중 적어도 하나가 만족되는 경우 측정 대상으로 판단할 수 있다.The terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in steps 730 and 725. Specifically, the terminal can be determined as a measurement target when at least one of the following conditions is satisfied.
Figure PCTKR2023017097-appb-img-000053
Figure PCTKR2023017097-appb-img-000053
Cell 1에 대한 엔트리 조건을 충족하는 경우, 단말은 cellsTriggeredList에 Cell 1을 포함할 수 있다. If the entry conditions for Cell 1 are met, the terminal can include Cell 1 in cellsTriggeredList.
735 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 735, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 5).
740 단계에서, 기지국은 Cell 1 또는 Cell 1을 포함하는 다른 기지국에게 간섭 완화 또는 지시를 요청할 수 있다. 간섭 완화의 요청 또는 지시는 전술한 실시 예(예를 들어, 도 6)를 따를 수 있다. 이 때 기지국은 단말의 셀 리스트에 Cell 1 이외의 다른 인접 셀의 존재 여부를 알 수 없으므로 간섭 완화 동작의 효율이 떨어질 수 있다.In step 740, the base station may request interference mitigation or instructions from Cell 1 or other base stations including Cell 1. Requests or instructions for interference mitigation may follow the above-described embodiments (e.g., Figure 6). At this time, the base station cannot know whether neighboring cells other than Cell 1 exist in the terminal's cell list, so the efficiency of the interference mitigation operation may be reduced.
745 단계에서, 단말은 725 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 즉, 단말은 Cell 1, Cell 2, Cell 3에 대한 EventA3의 엔트리 조건이 충족되는 경우, cellsTriggeredList에 Cell 1, Cell 2, Cell 3를 포함시킬 수 있다. In step 745, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 725. That is, if the entry conditions of EventA3 for Cell 1, Cell 2, and Cell 3 are met, the terminal can include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList.
750 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 750, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIGS. 5 and 6).
755 단계에서, 기지국은 Cell 1 또는 Cell 1을 포함하는 다른 기지국에게 간섭 완화 또는 지시를 요청할 수 있다. 간섭 완화의 요청 또는 지시는 전술한 실시 예(예를 들어, 도 6)를 따를 수 있다. 이 때 기지국은 단말의 셀 리스트에 다른 인접 셀(Cell 2, Cell 3)의 유무를 확인할 수 있으며 더 효율적인 간섭 완화 동작이 가능할 수 있다.In step 755, the base station may request interference mitigation or instructions from Cell 1 or other base stations including Cell 1. Requests or instructions for interference mitigation may follow the above-described embodiments (e.g., Figure 6). At this time, the base station can check the presence or absence of other neighboring cells (Cell 2, Cell 3) in the terminal's cell list, and more efficient interference mitigation operations may be possible.
도 8은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 향상된 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 8 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 8을 참조하면, UAV 단말(805)은 NR 기지국(810)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(815)에 있을 수 있다. Referring to FIG. 8, the UAV terminal 805 may establish an RRC connection with the NR base station 810 and be in the RRC connected mode (RRC_CONNECTED) 815.
820 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7)를 따를 수 있다. 추가적으로, 단말 능력 정보 메시지에는 UAV를 위한 향상된 측정 보고의 지원 여부에 대한 필드가 포함될 수 있다. 상기 필드는 단말이 기지국이 설정한 셀 리스트에 기반하여 측정 보고의 전송 여부를 결정할 수 있는 능력의 지원 여부를 나타낼 수 있다. In step 820, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, and 7). Additionally, the terminal capability information message may include a field regarding whether enhanced measurement reporting for UAV is supported. The field may indicate whether the terminal supports the ability to determine whether to transmit a measurement report based on the cell list set by the base station.
825 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7)를 따를 수 있다. 추가적으로, 기지국은 향상된 측정 보고를 위하여 하나 이상의 셀을 포함하는 셀 리스트 및 셀 리스트의 사용 여부를 설정할 수 있다. In step 825, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, and 7). Additionally, the base station can configure a cell list containing one or more cells and whether to use the cell list for improved measurement reporting.
방법 1: CellsToAddModList 또는 allowedCellsToAddModList의 형태로서 설정 방법은 전술한 예(예를 들어, 도 7)를 따를 수 있다.Method 1: The setting method in the form of CellsToAddModList or allowedCellsToAddModList may follow the example described above (e.g., Figure 7).
또한, CellsToAddModList 또는 allowedCellsToAddModList와 numberOfTriggeringCells 또는 향상된 측정 보고의 이용 여부를 나타내는 지시자(indicator)를 측정 설정 정보에 포함하여 측정 보고 절차의 시작 판단 중 지정된 Cell 리스트를 고려하도록 지시할 수 있다. 이는 blockedCellsToAddModList를 포함하는 다른 리스트와 동시에 사용될 수 있다.In addition, CellsToAddModList or allowedCellsToAddModList and numberOfTriggeringCells or an indicator indicating whether improved measurement reporting is used can be included in the measurement setting information to instruct the specified Cell list to be considered during the determination of the start of the measurement reporting procedure. This can be used simultaneously with other lists including blockedCellsToAddModList.
방법 2: 하나 이상의 physCellId를 포함하는 형태로서 본 개시에서 cellsToReportAddModList로 칭할 수 있다. cellsToReportAddModList는 추가와 변경 및 삭제를 지원하는 AddModList 및 RemoveList로 구성되거나 하나의 리스트로 구성될 수 있다. cellsToReportAddModList는 일 실시 예로서 다음 중 하나의 형태로 구성될 수 있으나, 이에 한정되지 않고 하나 이상의 PCI가 포함되고 해당 PCI에 대한 offset을 포함하거나 offset을 포함하지 않는 다른 형태의 구성을 포함할 수 있다. 또한, 상기 cellsToReportAddModList는 blockedCellsToAddModList를 포함하는 다른 리스트와 동시에 사용될 수 있다.Method 2: A form containing one or more physCellIds and may be referred to as cellsToReportAddModList in the present disclosure. cellsToReportAddModList can be composed of AddModList and RemoveList, which support addition, change, and deletion, or can be composed of a single list. As an example, cellsToReportAddModList may be configured in one of the following forms, but is not limited to this and may include one or more PCIs and an offset for the corresponding PCI or another configuration that does not include an offset. Additionally, the cellsToReportAddModList can be used simultaneously with another list including blockedCellsToAddModList.
형태 1: Mode 1:
Figure PCTKR2023017097-appb-img-000054
Figure PCTKR2023017097-appb-img-000054
형태 2:Mode 2:
Figure PCTKR2023017097-appb-img-000055
Figure PCTKR2023017097-appb-img-000055
설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하고 eventTriggered을 EventA3 (물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 cellsToReportAddModList에 Cell 1, Cell 4, Cell 5이 포함되도록 설정한 것으로 가정한다. For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that cellsToReportAddModList is set to include Cell 1, Cell 4, and Cell 5.
830 단계에서, 단말은 825 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 1에 대한 엔트리 조건이 충족되는 경우, 단말은 cellsTriggeredList에 Cell 1을 포함할 수 있다. 단말은 다음 방법 중 적어도 하나 이상의 조합을 이용하여 측정 보고 절차의 시작 여부를 판단할 수 있다.In step 830, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 825. If the entry conditions for Cell 1 are met, the terminal can include Cell 1 in the cellsTriggeredList. The terminal can determine whether to start the measurement reporting procedure using a combination of at least one of the following methods.
방법 1: 단말은 cellsTriggeredList에 새롭게 포함되는 셀(즉, 이전에 보고되지 않은 셀) 중 적어도 하나 이상이 cellsToReportAddModList에 포함된 셀인 경우 측정 보고 절차를 개시할 수 있다.Method 1: The terminal may initiate a measurement reporting procedure if at least one of the cells newly included in cellsTriggeredList (i.e., cells not previously reported) is a cell included in cellsToReportAddModList.
방법 2: 단말은 cellsToReportAddModList와 관련된 조건을 만족했을 때, cellsTriggeredList에 포함된 셀들의 수가 numberOfTriggeringCells 이상인 경우, 측정 보고 절차를 개시할 수 있다.Method 2: When the terminal satisfies the conditions related to cellsToReportAddModList and the number of cells included in cellsTriggeredList is more than numberOfTriggeringCells, the terminal may initiate a measurement reporting procedure.
방법 3: 단말은 cellsToReportAddModList와 관련된 조건을 만족했을 때, cellsTriggeredList에 포함된 셀들의 수 및 numberOfTriggeringCells 와 관계없이, 측정 보고 절차를 개시할 수 있다.Method 3: When the conditions related to cellsToReportAddModList are satisfied, the terminal may initiate a measurement reporting procedure, regardless of the number of cells included in cellsTriggeredList and numberOfTriggeringCells.
방법 4: 단말은 cellsTriggeredList에 포함된 셀 중 cellsToReportAddModList에 포함된 셀들의 수가 numberOfTriggeringCells보다 크거나 같은 경우, 측정 보고 절차를 개시할 수 있다.Method 4: The terminal may initiate a measurement reporting procedure when the number of cells included in cellsToReportAddModList among cells included in cellsTriggeredList is greater than or equal to numberOfTriggeringCells.
일 실시 예로서, 방법 1 및 방법 3을 이용하면, 단말은 830 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 1이 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하였고, 방법 3에 따라 numberOfTriggeringCells과 관계없이 측정 보고 절차를 개시할 수 있다. As an example, using Method 1 and Method 3, the terminal determines that Cell 1 newly included in cellsTriggeredList is included in cellsToReportAddModList in step 830, satisfying the conditions of Method 1, and measurement is performed regardless of numberOfTriggeringCells according to Method 3. A reporting procedure may be initiated.
또 다른 실시 예로서, 방법 1 및 방법 2의 조합을 이용하면, 단말은 830 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 1이 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건은 만족하였지만 numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 작기 때문에 방법 2의 조건을 만족하지 않다고 판단하여 측정 보고 절차를 개시하지 않을 수 있다. As another example, when using a combination of method 1 and method 2, the terminal determines in step 830 that Cell 1 newly included in cellsTriggeredList is included in cellsToReportAddModList, so the conditions of method 1 are satisfied, but the cells included in cellsTriggeredList are higher than numberOfTriggeringCells. Because the number is small, it is determined that the conditions of Method 2 are not satisfied and the measurement reporting procedure may not be initiated.
또 다른 실시 예로서, 방법 4를 이용하면, 단말은 830 단계에서 cellsTriggeredList에 포함한 Cell 1이 cellsToReportAddModList에 포함되어있지만 numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀 중 cellsToReportAddModList에 포함된 셀의 수가 적기 때문에 방법 4의 조건을 만족하지 않다고 판단하여 측정 보고 절차를 개시하지 않을 수 있다.As another embodiment, using Method 4, the terminal determines the condition of Method 4 in step 830 because Cell 1 included in cellsTriggeredList is included in cellsToReportAddModList, but the number of cells included in cellsToReportAddModList among the cells included in cellsTriggeredList is less than numberOfTriggeringCells. If it is determined to be unsatisfactory, the measurement reporting process may not be initiated.
측정 보고 절차가 개시되는 경우 단말은 835 단계에서 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7)에 따라 기지국에게 측정 보고를 전송할 수 있다. When the measurement report procedure is initiated, the terminal may transmit a measurement report to the base station in step 835 according to the above-described embodiment (eg, FIGS. 5, 6, and 7).
840 단계에서, 단말은 825 단계에서 수신한 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 즉, 단말은 Cell 1, Cell 2, Cell 3이 EventA3의 엔트리 조건을 충족하는 경우, 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7)에 따라 cellsTriggeredList에 Cell 1, Cell 2, Cell 3을 포함시키고 측정 보고 절차의 시작 여부를 판단 수 있다. In step 840, the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, and Cell 3 meet the entry conditions of EventA3, the terminal adds Cell 1, Cell 2, and You can determine whether to include Cell 3 and start the measurement reporting process.
845 단계에서, 단말은 전술한 실시 예(예를 들어, 도 2)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 845, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 2).
850 단계에서, 단말은 825 단계에서 수신한 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 즉, 단말은 Cell 1, Cell 2, Cell 3, Cell 4가 EventA3의 엔트리 조건을 충족하는 경우, cellsTriggeredList에 Cell 1, Cell 2, Cell 3, Cell 4를 포함시킬 수 있다. In step 850, the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, Cell 3, and Cell 4 meet the entry conditions of EventA3, the terminal can include Cell 1, Cell 2, Cell 3, and Cell 4 in the cellsTriggeredList.
일 실시 예로서, 전술한 830 단계의 방법 1 및 방법 2를 이용하면, 단말은 850 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 4가 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하였고, 방법 3에 따라 numberOfTriggeringCells과 관계없이 측정 보고 절차를 개시할 수 있다. As an example, using Method 1 and Method 2 in step 830 described above, the terminal determines that Cell 4, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 850, satisfying the conditions of Method 1, and follows Method 3. The measurement reporting procedure can be initiated regardless of numberOfTriggeringCells.
또 다른 실시 예로서, 전술한 830 단계의 방법 1 및 방법 2을 이용하면, 단말은 850 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 4가 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하였고, numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 같거나 크기 때문에 방법 2의 조건을 만족하는 것으로 판단하여 측정 보고 절차를 개시할 수 있다. As another example, using Method 1 and Method 2 of step 830 described above, the terminal determines that Cell 4, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 850, satisfying the conditions of Method 1, and cellsTriggeredList than numberOfTriggeringCells. Since the number of cells included in is the same or greater, it is determined that the conditions of method 2 are satisfied, and the measurement reporting procedure can be initiated.
또 다른 실시 예로서, 전술한 830 단계의 방법 4를 이용하면, 단말은 850 단계에서 cellsTriggeredList에 포함된 Cell 1과 Cell 4가 cellsToReportAddModList에 포함되어있지만 cellsTriggeredList에 포함된 셀 중 cellsToReportAddModList에 포함된 셀의 수가 numberOfTriggeringCells보다 적기 때문에 방법 4의 조건을 만족하지 않는다고 판단하여 측정 보고 절차를 개시하지 않을 수 있다.As another example, using Method 4 in step 830 described above, the terminal determines in step 850 that Cell 1 and Cell 4 included in cellsTriggeredList are included in cellsToReportAddModList, but the number of cells included in cellsToReportAddModList among the cells included in cellsTriggeredList is Since it is less than numberOfTriggeringCells, it is determined that the conditions of method 4 are not satisfied, and the measurement reporting procedure may not be initiated.
855 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 855, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIGS. 5, 6, and 7).
860 단계에서, 단말은 825 단계에서 수신한 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 즉, 단말은 Cell 1, Cell 2, Cell 3, Cell 4, Cell 5가 EventA3의 엔트리 조건을 충족하는 경우, cellsTriggeredList에 Cell 1, Cell 2, Cell 3, Cell 4, Cell 5를 포함시킬 수 있다. In step 860, the terminal may determine whether to start a measurement reporting procedure based on the measurement setting information received in step 825. That is, if Cell 1, Cell 2, Cell 3, Cell 4, and Cell 5 meet the entry conditions of EventA3, the terminal can include Cell 1, Cell 2, Cell 3, Cell 4, and Cell 5 in the cellsTriggeredList.
일 실시 예로서, 전술한 830 단계의 방법 1 및 방법 2를 이용하면, 단말은 860 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 5가 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하였고, 방법 3에 따라 numberOfTriggeringCells과 관계없이 측정 보고 절차를 개시할 수 있다. As an example, using Method 1 and Method 2 in step 830 described above, the terminal determines that Cell 5, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 860, satisfying the conditions of Method 1, and follows Method 3. The measurement reporting procedure can be initiated regardless of numberOfTriggeringCells.
또 다른 실시 예로서, 전술한 830 단계의 방법 1 및 방법 3을 이용하면, 단말은 860 단계에서 cellsTriggeredList에 새롭게 포함한 Cell 5가 cellsToReportAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하였고, numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 같거나 크기 때문에 방법 2의 조건을 만족하는 것으로 판단하여 측정 보고 절차를 개시할 수 있다. As another example, using Method 1 and Method 3 in step 830 described above, the terminal determines that Cell 5, newly included in cellsTriggeredList, is included in cellsToReportAddModList in step 860, satisfying the conditions of Method 1, and cellsTriggeredList than numberOfTriggeringCells. Since the number of cells included in is the same or greater, it is determined that the conditions of method 2 are satisfied, and the measurement reporting procedure can be initiated.
또 다른 실시 예로서, 전술한 830 단계의 방법 4를 이용하면, 단말은 860 단계에서 cellsTriggeredList에 포함된 Cell 1, Cell 4, Cell 5가 cellsToReportAddModList에 포함되어있고 cellsTriggeredList에 포함된 셀 중 cellsToReportAddModList에 포함된 셀의 수가 numberOfTriggeringCells보다 같거나 크기 때문에 때문에 방법 4의 조건을 만족한다고 판단하여 측정 보고 절차를 개시할 수 있다. As another embodiment, using method 4 of step 830 described above, in step 860, the terminal determines that Cell 1, Cell 4, and Cell 5 included in cellsTriggeredList are included in cellsToReportAddModList, and among the cells included in cellsTriggeredList, cells included in cellsToReportAddModList Since the number of cells is equal to or greater than numberOfTriggeringCells, it is determined that the conditions of method 4 are satisfied, and the measurement reporting procedure can be initiated.
865 단계에서, 단말은 전술한 실시 예(예를 들어, 도 2)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 865, the terminal may transmit a measurement report to the base station according to the above-described embodiment (eg, FIG. 2).
한편, 상기 830 단계, 840 단계, 850 단계, 860 단계는 본 개시의 측정 보고 절차의 개시 여부를 판단하기 위해 제안된 방법을 설명하기 위해 개시된 일 실시예이며 모든 단계가 필수적으로 포함되어야 하는 것은 아니다. 본 개시에서는 상기 830 단계, 840 단계, 850 단계, 860 단계 중 적어도 하나의 단계가 포함될 수 있으며 단말은 상기 방법 1 내지 방법 4 중 하나 또는 적어도 두 개 이상의 조합을 통해 측정 보고 절차의 개시 여부를 판단할 수 있다. 또한, 본 개시에서는 설명의 편의를 위해 상기 830 단계, 840 단계, 850 단계, 860 단계에서 측정 보고를 개시하는 것을 일 예로 설명하였으나 측정 보고 절차를 시작하기 위한 조건을 만족하지 못하여 측정 보고를 수행하지 않을 수 있다. Meanwhile, steps 830, 840, 850, and 860 are examples disclosed to explain a method proposed to determine whether to initiate the measurement reporting procedure of the present disclosure, and not all steps must necessarily be included. . In the present disclosure, at least one of steps 830, 840, 850, and 860 may be included, and the terminal determines whether to initiate a measurement reporting procedure through one or a combination of at least two of methods 1 to 4. can do. In addition, in this disclosure, for convenience of explanation, starting the measurement report in steps 830, 840, 850, and 860 is described as an example, but the conditions for starting the measurement report procedure are not satisfied, so the measurement report is not performed. It may not be possible.
도 9는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 효율적으로 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 9 is a diagram illustrating a process in which a UAV terminal efficiently transmits a measurement report to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 9를 참조하면, UAV 단말(905)은 NR 기지국(910)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(915)에 있을 수 있다. Referring to FIG. 9, the UAV terminal 905 may establish an RRC connection with the NR base station 910 and be in the RRC connected mode (RRC_CONNECTED) 915.
920 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8)를 따를 수 있다. 추가적으로, 단말 능력 정보 메시지에는 cellsToReportList를 이용하는 측정 보고의 지원 여부가 포함될 수 있다. cellsToReportList를 이용하는 측정 보고의 지원 여부는 단말이 측정 보고를 전송할 때 cellsToReportList의 셀들을 추가적으로 포함할 수 있는 능력의 여부를 나타낼 수 있다.In step 920, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, and 8). Additionally, the terminal capability information message may include whether measurement reporting using cellsToReportList is supported. Whether or not a measurement report using cellsToReportList is supported may indicate whether the terminal has the ability to additionally include cells of cellsToReportList when transmitting a measurement report.
925 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8)를 따를 수 있다. 이 때 cellsToReportAddModList는 전술한 실시 예(예를 들어, 도 8)의 cellsToReportAddModList와 동일한 대상을 지정하거나, 다른 대상을 지정할 수 있다. 다른 대상을 지정하는 경우, 도 8과 도 9의 cellsToReportAddModList의 명칭이 달라질 수 있다. 설명의 편의를 위하여, 도 8의 cellsToReportAddModList와 도 9의 cellsToReportAddModList가 동일한 대상을 지정하는 것으로 가정한다. 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 cellsToReportAddModList에 Cell 1, Cell 3, Cell 4가 포함되도록 설정한 것으로 가정한다. In step 925, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, 7, and 8). At this time, cellsToReportAddModList may specify the same target as cellsToReportAddModList in the above-described embodiment (eg, FIG. 8), or may specify a different target. If a different target is specified, the name of cellsToReportAddModList in FIGS. 8 and 9 may be different. For convenience of explanation, it is assumed that cellsToReportAddModList in FIG. 8 and cellsToReportAddModList in FIG. 9 specify the same target. The base station set numberOfTriggeringCells to 3, eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied), and Cell in cellsToReportAddModList. Assume that it is set to include 1, Cell 3, and Cell 4.
930 단계에서, 단말은 925 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 단말은 Cell 1, Cell 2, Cell 3에 대한 엔트리 조건이 충족되는 경우, 다음 방법을 사용할 수 있다.In step 930, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 925. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can use the following method.
방법: cellsToReportAddModList에 포함된 셀인 경우 cellsTriggeredList에 포함한다. cellsToReportAddModList에 포함되지 않은 셀인 경우 다른 리스트(예를 들어, cellsToReportList로 부를 수 있다)에 포함한다.Method: If a cell is included in cellsToReportAddModList, include it in cellsTriggeredList. If cells are not included in cellsToReportAddModList, they are included in another list (for example, it can be called cellsToReportList).
일 실시 예로서, Cell 1, Cell 3이 엔트리 조건을 충족하였고, cellsToReportAddModList에 포함되어 있으므로 단말은 cellsTriggeredList에 상기 셀을 포함할 수 있다. Cell 2는 엔트리 조건을 충족하였지만 cellsToReportAddModList에 포함되어있지 않으므로 cellsToReportList에 포함될 수 있다. 이후 측정 보고 절차의 판단은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8)를 따를 수 있다. 예를 들어, 단말은 numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 적기 때문에 측정 보고 절차를 개시하지 않을 수 있다. 다만, 이는 일 실시예에 불과하며, 설정된 numberOfTriggeringCells의 수 및 엔트리 조건을 충족한 셀의 수에 따라 측정 보고 절차를 개시할 수도 있다. As an example, Cell 1 and Cell 3 meet the entry conditions and are included in cellsToReportAddModList, so the terminal can include the cells in the cellsTriggeredList. Cell 2 meets the entry conditions, but is not included in cellsToReportAddModList, so it can be included in cellsToReportList. Subsequent determination of the measurement reporting procedure may follow the examples described above (eg, FIGS. 5, 6, 7, and 8). For example, the terminal may not initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells. However, this is only an example, and the measurement reporting procedure may be initiated depending on the number of numberOfTriggeringCells set and the number of cells that meet the entry conditions.
935 단계에서, 단말은 925 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 단말은 Cell 1, Cell 2, Cell 3, Cell 4에 대한 엔트리 조건이 충족되는 경우, 930 단계의 방법에 따라 셀들을 cellsTriggeredList 또는 cellsToReportList에 포함할 수 있다. 일 실시 예로서, Cell 1, Cell 3, Cell 4가 엔트리 조건을 충족하였고, cellsToReportAddModList에 포함되어 있으므로 단말은 상기 셀을 cellsTriggeredList에 포함할 수 있다. Cell 2는 엔트리 조건을 충족하였지만 cellsToReportAddModList에 포함되어있지 않으므로 cellsToReportList에 포함될 수 있다. 이후 측정 보고 절차의 판단은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8)를 따를 수 있다. 단말은 cellsTriggeredList에 포함된 셀의 수가 numberOfTriggeringCells보다 같거나 크기 때문에 측정 보고 절차를 개시할 수 있다.In step 935, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 925. If the entry conditions for Cell 1, Cell 2, Cell 3, and Cell 4 are met, the terminal may include the cells in cellsTriggeredList or cellsToReportList according to the method in step 930. As an example, Cell 1, Cell 3, and Cell 4 meet the entry conditions and are included in cellsToReportAddModList, so the terminal can include the cells in cellsTriggeredList. Cell 2 meets the entry conditions, but is not included in cellsToReportAddModList, so it can be included in cellsToReportList. Subsequent determination of the measurement reporting procedure may follow the examples described above (eg, FIGS. 5, 6, 7, and 8). The terminal can initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells.
940 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8)에 따라 기지국에게 측정 보고를 전송할 수 있다. 추가적으로, cellsToReportList에 포함된 셀이 있는 경우 측정 보고 설정 정보에 포함된 maxReportCells보다 cellsTriggeredList에 포함된 셀의 수가 작은 경우, maxReportCells까지 cellsToReportList에 포함된 셀을 추가하여 기지국에게 측정 보고를 전송할 수 있다. cellsToReportList에 포함된 셀을 측정 보고에 포함할 때, 단말은 925 단계에서 수신한 셀들의 RSRP, RSRQ, SINR 등의 측정 설정에 포함된 측정 퀀터티(quantity)가 좋은 셀을 우선적으로 포함할 수 있다.In step 940, the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, and 8). Additionally, if there are cells included in cellsToReportList and the number of cells included in cellsTriggeredList is smaller than maxReportCells included in the measurement report setting information, a measurement report can be transmitted to the base station by adding cells included in cellsToReportList up to maxReportCells. When including cells included in cellsToReportList in the measurement report, the terminal may preferentially include cells with good measurement quantity included in the measurement settings such as RSRP, RSRQ, and SINR of the cells received in step 925. .
한편, 상기 930 단계 및 935 단계는 본 개시의 측정 보고 절차의 개시 여부를 판단하기 위해 제안된 방법을 설명하기 위해 개시된 일 실시예이며 모든 단계가 필수적으로 포함되어야 하는 것은 아니다. 또한, 상술한 바와 같이 상기 실시예에서 numberOfTriggeringCells의 값 및 엔트리를 만족하는 셀의 수에 따라 측정 보고 절차의 개시 여부가 변경될 수 있다. Meanwhile, steps 930 and 935 are an example disclosed to explain a method proposed to determine whether to initiate the measurement reporting procedure of the present disclosure, and not all steps must necessarily be included. Additionally, as described above, in the above embodiment, whether or not the measurement reporting procedure is initiated may be changed depending on the value of numberOfTriggeringCells and the number of cells that satisfy the entry.
도 10은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 리빙 조건에 기반한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 10 is a diagram illustrating a process in which a UAV terminal transmits a measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 10을 참조하면, UAV 단말(1005)은 NR 기지국(1010)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(1015)에 있을 수 있다. Referring to FIG. 10, the UAV terminal 1005 may establish an RRC connection with the NR base station 1010 and be in the RRC connected mode (RRC_CONNECTED) 1015.
1020 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9)를 따를 수 있다. In step 1020, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, and 9).
1025 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9)를 따를 수 있다. 설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3(물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 reportOnLeave를 참(true)으로 설정한 것으로 가정한다. In step 1025, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiments (eg, FIGS. 5, 6, 7, 8, and 9). For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to true.
1030 단계에서, 단말은 1025 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 1, Cell 2에 대한 엔트리 조건이 충족되는 경우, 단말은 Cell 1 및 Cell 2를 cellsTriggeredList에 포함할 수 있다. numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 적기 때문에 단말은 측정 보고 절차를 개시하지 않을 수 있다. 다만, 이는 일 실시예에 불과하며, 설정된 numberOfTriggeringCells의 수 및 엔트리 조건을 충족한 셀의 수에 따라 측정 보고 절차를 개시할 수도 있다.In step 1030, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1025. If the entry conditions for Cell 1 and Cell 2 are met, the terminal can include Cell 1 and Cell 2 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells, the terminal may not initiate the measurement reporting procedure. However, this is only an example, and the measurement reporting procedure may be initiated depending on the number of numberOfTriggeringCells set and the number of cells that meet the entry conditions.
1035 단계에서, 단말은 1025 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 2에 대한 리빙 조건을 충족하는 경우, 단말은 cellsTriggeredList에서 Cell 2를 삭제할 수 있다. 단말은 reportOnLeave가 참으로 설정되어있을 때 측정 보고 절차를 개시할 수 있다. 구체적으로, 단말은 아래 조건 중 적어도 하나를 만족하는 경우 측정 보고 절차를 개시할 수 있다.In step 1035, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1025. If the living conditions for Cell 2 are met, the terminal can delete Cell 2 from cellsTriggeredList. The terminal can initiate the measurement reporting procedure when reportOnLeave is set to true. Specifically, the terminal may initiate a measurement reporting procedure if at least one of the conditions below is satisfied.
Figure PCTKR2023017097-appb-img-000056
Figure PCTKR2023017097-appb-img-000056
1040 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9)에 따라 기지국에게 측정 보고를 전송할 수 있다. 이 때, 단말은 기지국이 설정한 numberOfTriggeringCells보다 단말의 cellsTriggeredList에 포함된 셀의 수가 작음에도 불구하고 측정 보고를 전송할 수 있다. 이는 기지국이 의도하지 않은 측정 보고일 수 있다.In step 1040, the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, and 9). At this time, the terminal can transmit a measurement report even though the number of cells included in the terminal's cellsTriggeredList is smaller than the numberOfTriggeringCells set by the base station. This may be a measurement report that the base station did not intend.
도 11은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 리빙 조건에 기반한 향상된 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.FIG. 11 is a diagram illustrating a process in which a UAV terminal transmits an improved measurement report based on living conditions to a base station in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 11을 참조하면, UAV 단말(1105)은 NR 기지국(1110)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(1115)에 있을 수 있다. Referring to FIG. 11, the UAV terminal 1105 may establish an RRC connection with the NR base station 1110 and be in the RRC connected mode (RRC_CONNECTED) 1115.
1120 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10)를 따를 수 있다. 추가적으로, 메시지에는 리빙 조건에 기반한 향상된 측정 보고의 지원 여부가 포함될 수 있다. 리빙 조건에 기반한 향상된 측정 보고의 지원 여부는 단말이 측정 보고의 전송 여부를 결정할 때 기지국이 설정한 셀 리스트에 포함되는 셀 중 적어도 하나 이상이 리빙 조건을 만족했을 때 측정 보고의 전송 여부를 결정할 수 있는 능력의 지원 여부를 나타낼 수 있다. In step 1120, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, and 10). Additionally, the message may include support for enhanced measurement reporting based on living conditions. Support for improved measurement reports based on living conditions can be determined when at least one of the cells included in the cell list set by the base station satisfies the living conditions when the terminal determines whether to transmit the measurement report. It can indicate whether or not the ability is supported.
1125 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10)를 따를 수 있다. 추가적으로, 기지국은 리빙 조건에 기반한 향상된 측정 보고를 위하여 하나 이상의 셀을 포함하는 셀 리스트 및 셀 리스트의 사용 여부를 설정할 수 있다. In step 1125, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) may follow the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, and 10). Additionally, the base station can configure a cell list containing one or more cells and whether to use the cell list for improved measurement reporting based on living conditions.
방법 1: CellsToAddModList 또는 allowedCellsToAddModList의 형태로서 설정 방법은 전술한 예(예를 들어, 도 7)를 따를 수 있다.Method 1: The setting method in the form of CellsToAddModList or allowedCellsToAddModList may follow the example described above (e.g., Figure 7).
또한, CellsToAddModList 또는 allowedCellsToAddModList와 numberOfTriggeringCells 또는 향상된 측정 보고의 이용 여부를 나타내는 지시자(indicator)를 측정 설정 정보에 포함하여 리빙 조건에 기반한 측정 보고 절차의 시작 판단 중 지정된 Cell 리스트를 고려하도록 지시할 수 있다. 이는 blockedCellsToAddModList를 포함하는 다른 리스트와 동시에 사용될 수 있다.In addition, CellsToAddModList or allowedCellsToAddModList and numberOfTriggeringCells or an indicator indicating whether improved measurement reporting is used may be included in the measurement setting information to indicate that the specified Cell list is considered during the determination of the start of the measurement reporting procedure based on living conditions. This can be used simultaneously with other lists including blockedCellsToAddModList.
방법 2: 하나 이상의 physCellId를 포함하는 형태로서 본 개시에서는 cellsToReportOnLeaveAddModList로 칭할 수 있다. cellsToReportOnLeaveAddModList는 추가와 변경 및 삭제를 지원하는 AddModList 및 RemoveList로 구성되거나 하나의 리스트로 구성될 수 있다. cellsToReportOnLeaveAddModList는 일 실시 예로서 다음 중 하나의 형태로 구성될 수 있으나, 이에 한정되지 아니하고 하나 이상의 PCI가 포함되고 해당 PCI에 대한 offset을 포함하거나 offset을 포함하지 않는 다른 형태의 구성을 포함할 수 있다. 또는 cellsToReportOnLeaveAddModList는 blockedCellsToAddModList를 포함하는 다른 리스트와 동시에 사용될 수 있다.Method 2: A form that includes one or more physCellIds and may be referred to as cellsToReportOnLeaveAddModList in the present disclosure. cellsToReportOnLeaveAddModList can be composed of AddModList and RemoveList, which support addition, change, and deletion, or can be composed of a single list. As an example, cellsToReportOnLeaveAddModList may be configured in one of the following forms, but is not limited to this and may include one or more PCIs and include an offset for the corresponding PCI or other types of configurations that do not include an offset. Alternatively, cellsToReportOnLeaveAddModList can be used simultaneously with another list containing blockedCellsToAddModList.
형태 1: Mode 1:
Figure PCTKR2023017097-appb-img-000057
Figure PCTKR2023017097-appb-img-000057
형태 2:Mode 2:
Figure PCTKR2023017097-appb-img-000058
Figure PCTKR2023017097-appb-img-000058
설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 cellsToReportOnLeaveAddModList에 Cell 1, Cell 3, Cell 4가 포함되도록 설정하였고, reportOnLeave를 참으로 설정한 것으로 가정한다.For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that cellsToReportOnLeaveAddModList is set to include Cell 1, Cell 3, and Cell 4, and reportOnLeave is set to true.
1130 단계에서, 단말은 1125 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 단말은 Cell 1, Cell 2에 대한 엔트리 조건이 충족되는 경우, cellsTriggeredList에 Cell 1, Cell 2를 포함할 수 있다. 단말은 numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 적기 때문에 측정 보고 절차를 개시하지 않을 수 있다.In step 1130, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the entry conditions for Cell 1 and Cell 2 are met, the terminal may include Cell 1 and Cell 2 in the cellsTriggeredList. The terminal may not initiate the measurement reporting procedure because the number of cells included in cellsTriggeredList is less than numberOfTriggeringCells.
1135 단계에서, 단말은 1125 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 2에 대한 리빙 조건이 충족되는 경우, 단말은 cellsTriggeredList에서 Cell 2를 삭제할 수 있다. 단말은 다음 방법 중 적어도 하나 이상의 조합을 이용하여 리빙 조건에 기반한 측정 보고 절차의 시작 여부를 판단할 수 있다.In step 1135, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the living conditions for Cell 2 are met, the terminal can delete Cell 2 from cellsTriggeredList. The terminal can determine whether to start a measurement reporting procedure based on living conditions using a combination of at least one of the following methods.
방법 1: 단말은 리빙 조건을 충족하는 적어도 하나 이상의 셀이 cellsToReportOnLeaveAddModList에 포함되어 있는 경우, 측정 보고 절차를 시작할 수 있다.Method 1: The terminal may start the measurement reporting procedure if at least one cell that satisfies the living condition is included in cellsToReportOnLeaveAddModList.
방법 2: 단말은 리빙 조건을 충족하는 적어도 하나 이상의 셀이 cellsTriggeredList에서 삭제된 이후 cellsTriggeredList에 포함된 셀의 수가 numberOfTriggeringCells보다 같거나 큰 경우, 측정 보고 절차를 시작할 수 있다. 이 때 리빙 조건에 사용되는 numberOfTriggeringCells는 측정 보고 절차의 시작 판단에 사용되는 numberOfTriggeringCells와 서로 다른 값일 수 있으며, 서로 다른 명칭으로 설정될 수 있다.Method 2: The terminal may start the measurement reporting procedure if the number of cells included in the cellsTriggeredList is equal to or greater than numberOfTriggeredCells after at least one cell that satisfies the living condition is deleted from the cellsTriggeredList. At this time, the numberOfTriggeringCells used in the living condition may be a different value from the numberOfTriggeringCells used in determining the start of the measurement reporting procedure, and may be set to different names.
일 실시 예로서, 방법 1을 이용하면, 단말은 1120 단계에서 리빙 조건을 만족한 Cell 2가 cellsToReportOnLeaveAddModList에 포함되지 않은 것으로 판단되어 방법 1의 조건을 만족하지 않으므로 측정 보고 절차를 시작하지 않을 수 있다. As an example, if Method 1 is used, the terminal determines that Cell 2, which satisfies the living condition, is not included in the cellsToReportOnLeaveAddModList in step 1120 and does not satisfy the conditions of Method 1, so it may not start the measurement reporting procedure.
단말은 1140 단계에서, 1125 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 단말은 Cell 1, Cell 3, Cell 4, Cell 5에 대한 엔트리 조건이 충족되는 경우, 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10)에 따라 Cell 1, Cell 3, Cell 4, Cell 5를 cellsToReportList에 포함할 수 있다.In steps 1140 and 1125, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 3, Cell 4, and Cell 5 are met, the terminal follows the above-described example (e.g., Figures 5, 6, 7, 8, 9, and 10). Cell 1, Cell 3, Cell 4, and Cell 5 can be included in cellsToReportList.
1145 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 1145, the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, 9, and 10).
1150 단계에서, 단말은 1125 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 4에 대한 리빙 조건이 충족되는 경우, 단말은 Cell 4를 cellsTriggeredList에서 삭제할 수 있다. In step 1150, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1125. If the living conditions for Cell 4 are met, the terminal can delete Cell 4 from cellsTriggeredList.
일 실시 예로서, 전술한 1135 단계의 방법 1을 이용하면, 단말은 1150 단계에서 리빙 조건을 만족한 Cell 4가 cellsToReportOnLeaveAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하므로 측정 보고 절차를 시작할 수 있다. As an example, if Method 1 of step 1135 described above is used, the terminal determines that Cell 4 that satisfies the living condition is included in the cellsToReportOnLeaveAddModList in step 1150 and satisfies the conditions of Method 1, so the measurement reporting procedure can be started. .
또 다른 실시 예로서, 전술한 1135 단계의 방법 1과 2의 조합을 이용하면, 단말은 1150 단계에서 리빙 조건을 만족한 Cell 4가 cellsToReportOnLeaveAddModList에 포함된 것으로 판단되어 방법 1의 조건을 만족하는 것으로 판단하였고, cellsTriggeredList에 포함된 셀의 수가 numberOfTriggeringCells보다 같거나 큰 것으로 판단하여 방법 2의 조건을 만족하는 것으로 판단하여 측정 보고 절차를 시작할 수 있다.As another example, when using a combination of methods 1 and 2 in step 1135 described above, the terminal determines that Cell 4, which satisfies the living condition, is included in the cellsToReportOnLeaveAddModList in step 1150, and thus satisfies the conditions of method 1. The number of cells included in cellsTriggeredList is determined to be equal to or greater than numberOfTriggeringCells, and the conditions of Method 2 are determined to be satisfied, and the measurement reporting procedure can be started.
1155 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 1155, the terminal may transmit a measurement report to the base station according to the above-described embodiments (eg, FIGS. 5, 6, 7, 8, 9, and 10).
한편, 상기 1130 단계, 1135 단계, 1140 단계, 1150 단계는 본 개시의 제안된 방법을 설명하기 위해 개시된 일 실시예이며 모든 단계가 필수적으로 포함되어야 하는 것은 아니다. 본 개시에서는 상기 1130 단계, 1135 단계, 1140 단계, 1150 단계 중 적어도 하나의 단계가 포함될 수 있으며 단말은 상기 방법 1 및 방법 2 중 하나 또는 적어도 두 개 이상의 조합을 통해 측정 보고 절차의 개시 여부를 판단할 수 있다. 또한, 또한, 본 개시에서는 설명의 편의를 위해 상기 1140 단계 및 1150 단계에서 측정 보고를 개시하는 것을 일 예로 설명하였으나 cellsTriggeredList에 포함된 셀의 수, 리빙 조건을 만족하는 셀의 수, 설정된 numberOfTriggeringCells의 값에 따라 각 단계에서의 측정 보고 개시 여부는 변경될 수 있다.Meanwhile, steps 1130, 1135, 1140, and 1150 are examples disclosed to explain the proposed method of the present disclosure, and not all steps must necessarily be included. In the present disclosure, at least one of steps 1130, 1135, 1140, and 1150 may be included, and the terminal determines whether to initiate a measurement reporting procedure through one or a combination of at least two of Method 1 and Method 2. can do. In addition, in the present disclosure, for convenience of explanation, starting the measurement report in steps 1140 and 1150 is described as an example, but the number of cells included in cellsTriggeredList, the number of cells satisfying the living condition, and the set value of numberOfTriggeringCells Depending on this, whether or not to initiate measurement reporting at each stage may change.
도 12는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV 단말이 측정 보고 설정 변경에 의한 측정 보고를 기지국에게 전송하는 과정을 도시한 도면이다.Figure 12 is a diagram illustrating a process in which a UAV terminal transmits a measurement report by changing measurement report settings to a base station in the next-generation mobile communication system according to an embodiment of the present disclosure.
도 12를 참조하면, UAV 단말(1205)은 NR 기지국(1210)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(1215)에 있을 수 있다. Referring to FIG. 12, the UAV terminal 1205 may establish an RRC connection with the NR base station 1210 and be in the RRC connected mode (RRC_CONNECTED) 1215.
1220 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11)를 따를 수 있다. In step 1220, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, 10, and 11).
1225 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 2, 도 5, 도 6 또는 도 8)를 따를 수 있다. In step 1225, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (eg, RRCResume or RRCReconfiguration) may follow the above-described embodiment (eg, Figure 2, Figure 5, Figure 6 or Figure 8).
설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 reportOnLeave를 거짓(false)으로 설정한 것으로 가정한다. For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to false.
단말은 1230 단계에서, 1225 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 1, Cell 2, Cell 3에 대한 엔트리 조건이 충족되는 경우, 단말은 Cell 1, Cell 2, Cell 3을 cellsTriggeredList에 포함할 수 있다. numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 같거나 크기 때문에 단말은 측정 보고 절차를 개시할 수 있다.In steps 1230 and 1225, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, the terminal can initiate a measurement reporting procedure.
1235 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 1235, the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11).
1240 단계에서, 기지국은 reportOnLeave를 참으로 설정하기 위하여 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11)를 따를 수 있다. In step 1240, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal to set reportOnLeave to true. The transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) may follow the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11).
단말은 측정 설정 정보를 수신하고 reportOnLeave를 참으로 적용할 수 있다. 이 때 단말이 보유하고 있는 측정 보고 엔트리가 삭제(remove)될 수 있다. 예를 들어, 다음 중 적어도 하나의 조건을 만족하는 경우 단말이 보유하고 있는 측정 보고 엔트리가 삭제될 수 있다. 구체적으로, 측정 설정 정보(MeasConfig), 측정 설정 정보에 포함되는 측정 대상 정보(measObjectToAddModList), 또는 측정 설정 정보에 포함되는 보고 설정 정보(reportConfigToAddModList)에 포함되는 내용 중 적어도 하나 이상을 추가 또는 변경 또는 삭제하도록 설정된 경우, 단말은 이전 설정에 기반한 측정 결과를 포함한 보고 엔트리를 삭제할 수 있다.The terminal can receive measurement setting information and apply reportOnLeave as true. At this time, the measurement report entry held by the terminal may be deleted. For example, if at least one of the following conditions is satisfied, a measurement report entry held by the terminal may be deleted. Specifically, add, change, or delete at least one of the contents included in measurement setting information (MeasConfig), measurement object information (measObjectToAddModList) included in measurement setting information, or reporting setting information (reportConfigToAddModList) included in measurement setting information. If set to do so, the terminal can delete report entries containing measurement results based on previous settings.
Figure PCTKR2023017097-appb-img-000059
Figure PCTKR2023017097-appb-img-000059
Figure PCTKR2023017097-appb-img-000060
Figure PCTKR2023017097-appb-img-000060
Figure PCTKR2023017097-appb-img-000061
Figure PCTKR2023017097-appb-img-000061
Figure PCTKR2023017097-appb-img-000062
Figure PCTKR2023017097-appb-img-000062
Figure PCTKR2023017097-appb-img-000063
Figure PCTKR2023017097-appb-img-000063
Figure PCTKR2023017097-appb-img-000064
Figure PCTKR2023017097-appb-img-000064
Figure PCTKR2023017097-appb-img-000065
Figure PCTKR2023017097-appb-img-000065
단말은 1245 단계에서, 1240 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 1, Cell 2, Cell 3에 대한 엔트리 조건이 충족되는 경우, 단말은 cellsTriggeredList에상기 셀을 포함할 수 있다. 단말은 numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 같거나 크기 때문에 측정 보고 절차를 개시할 수 있다. In step 1245, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received in step 1240. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal can include the cells in the cellsTriggeredList. The terminal can initiate a measurement reporting procedure because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells.
1250 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11)에 따라 기지국에게 측정 보고를 전송할 수 있다. 기지국의 설정 변경으로 인한 추가적인 측정 보고는 시그널링 오버헤드가 발생할 수 있다.In step 1250, the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, and 11). Additional measurement reports due to changes in base station settings may result in signaling overhead.
도 13은 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 기지국이 UAV단말에게 향상된 측정 보고 설정 변경을 전송하는 과정을 도시한 도면이다.Figure 13 is a diagram illustrating a process in which a base station transmits an improved measurement report setting change to a UAV terminal in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 13을 참조하면, UAV 단말(1305)은 NR 기지국(1310)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(1315)에 있을 수 있다. Referring to FIG. 13, the UAV terminal 1305 may establish an RRC connection with the NR base station 1310 and be in the RRC connected mode (RRC_CONNECTED) 1315.
1320 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12)를 따를 수 있다. 추가적으로, 단말 능력 정보 메시지에는 향상된 측정 보고 설정 변경 기능의 지원 여부가 포함될 수 있다. 향상된 측정 보고 설정 변경 기능의 지원 여부는 기지국이 측정 보고 설정을 변경하는 메시지를 단말에게 전송하였을 때, 단말이 보유하고 있는 측정 보고 엔트리를 삭제하지 않고 측정 보고 설정을 변경할 수 있는 능력의 여부를 나타낸다.In step 1320, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (eg, FIGS. 5, 6, 7, 8, 9, 10, 11, and 12). Additionally, the terminal capability information message may include whether or not the enhanced measurement report setting change function is supported. Whether or not the enhanced measurement report settings change function is supported indicates whether the terminal has the ability to change the measurement report settings without deleting the measurement report entry held when the base station transmits a message to change the measurement report settings to the terminal. .
1325 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12)를 따를 수 있다. 설명의 편의를 위하여, 기지국은 numberOfTriggeringCells을 3으로 설정하였고 eventTriggered을 EventA3 (물론, eventTriggered는 EventA3이 아닌 EventA4, EventA5, EventB1, EventB2 중 하나로 설정될 수도 있고 numberOfTriggeringCells이 적용되는 다른 Event로 설정될 수도 있다)으로 설정하였고 reportOnLeave를 거짓으로 설정한 것으로 가정한다. In step 1325, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) follows the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, and 12). You can. For convenience of explanation, the base station sets numberOfTriggeringCells to 3 and eventTriggered to EventA3 (of course, eventTriggered may be set to one of EventA4, EventA5, EventB1, and EventB2 rather than EventA3, or to another Event to which numberOfTriggeringCells is applied) It is assumed that it is set to and reportOnLeave is set to false.
단말은 1330 단계에서, 1225 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. Cell 1, Cell 2, Cell 3에 대한 엔트리 조건이 충족되는 경우, 단말은 cellsTriggeredList에 Cell 1, Cell 2, Cell 3를 포함할 수 있다. numberOfTriggeringCells보다 cellsTriggeredList에 포함된 셀의 수가 같거나 크기 때문에 단말은 측정 보고 절차를 개시할 수 있다.In steps 1330 and 1225, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. If the entry conditions for Cell 1, Cell 2, and Cell 3 are met, the terminal may include Cell 1, Cell 2, and Cell 3 in the cellsTriggeredList. Because the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, the terminal can initiate a measurement reporting procedure.
1335 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12)에 따라 기지국에게 측정 보고를 전송할 수 있다. In step 1335, the terminal may transmit a measurement report to the base station according to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, and 12).
1340 단계에서, 기지국은 reportOnLeave를 참으로 설정하기 위하여 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12)를 따를 수 있다. 추가적으로, 기지국은 단말이 보유하고 있는 측정 보고 엔트리를 삭제하지 않도록 지시하는 지시자를 측정 설정 정보에 포함하여 전송할 수 있다. 측정 보고 엔트리를 삭제하지 않도록 지시하는 지시자는 적어도 하나 이상의 측정 대상 설정, 또는 적어도 하나 이상의 측정 보고 설정, 또는 측정 설정 정보 중 적어도 하나 이상의 조합으로 지시될 수 있다. In step 1340, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal to set reportOnLeave to true. The transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) follows the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, and 12). You can. Additionally, the base station may transmit an indicator instructing not to delete the measurement report entry held by the terminal by including it in the measurement setting information. The indicator instructing not to delete a measurement report entry may be indicated by a combination of at least one or more of at least one measurement target setting, at least one measurement report setting, or measurement setting information.
단말은 측정 설정 정보를 수신하고 reportOnLeave를 참으로 적용할 수 있다. 이 때 단말이 보유하고 있는 측정 보고 엔트리를 삭제하지 않도록 지시하는 지시자가 포함된 경우, 단말은 지시된 측정 대상과 연관된 이벤트 또는 지시된 측정 설정과 연관된 이벤트 또는 측정 설정 정보와 연관된 이벤트에 대해 단말이 보유하고 있는 측정 보고 엔트리를 삭제하지 않을 수 있다. 단말은 측정 보고 엔트리가 삭제되지 않았으므로 cellsTriggeredList에 포함된 셀의 수가 numberOfTriggeringCells보다 같거나 큰 상태를 유지할 수 있어 추가적인 측정 보고를 전송하지 않을 수 있다.The terminal can receive measurement setting information and apply reportOnLeave as true. At this time, if an indicator is included that instructs the terminal not to delete the measurement report entry held by the terminal, the terminal is responsible for You may not delete any measurement report entries you have. Since the measurement report entry has not been deleted, the terminal may maintain a state in which the number of cells included in cellsTriggeredList is equal to or greater than numberOfTriggeringCells, and thus may not transmit additional measurement reports.
도 14는 본 개시의 실시 예에 따른 차세대 이동통신 시스템에서 UAV단말이 조건에 따라 reportOnLeave를 변경하는 과정을 도시한 도면이다.Figure 14 is a diagram illustrating a process in which a UAV terminal changes reportOnLeave according to conditions in a next-generation mobile communication system according to an embodiment of the present disclosure.
도 14를 참조하면, UAV 단말(1405)은 NR 기지국(1410)과 RRC 연결을 설정하여 RRC 연결 모드(RRC_CONNECTED)(1415)에 있을 수 있다. Referring to FIG. 14, the UAV terminal 1405 may establish an RRC connection with the NR base station 1410 and be in the RRC connected mode (RRC_CONNECTED) 1415.
1420 단계에서, 단말은 기지국에게 단말 능력 정보 (UECapabilityInformation) 메시지를 전송할 수 있다. 단말 능력 정보 메시지의 전송은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12, 도 13)를 따를 수 있다. 추가적으로, 단말 능력 정보 메시지에는 조건에 따라 reportOnLeave를 변경할 수 있는 능력의 지원 여부가 포함될 수 있다. 조건에 따라 reportOnLeave를 변경할 수 있는 능력의 지원 여부는 기지국이 설정한 조건에 따라 단말이 reportOnLeave를 참 또는 거짓으로 변경할 수 있는 능력의 여부를 나타낸다. In step 1420, the terminal may transmit a UECapabilityInformation message to the base station. Transmission of the terminal capability information message may follow the examples described above (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13). Additionally, the terminal capability information message may include whether or not the capability to change reportOnLeave is supported depending on conditions. Support for the ability to change reportOnLeave according to conditions indicates whether the terminal has the ability to change reportOnLeave to true or false according to conditions set by the base station.
1425 단계에서, 기지국은 단말에 측정 설정 정보(MeasConfig)가 포함된 RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)를 전송할 수 있다. RRC 메시지(예를 들어, RRCResume 또는 RRCReconfiguration)의 전송 방법은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12, 도 13)를 따를 수 있다. 추가적으로, reportOnLeave를 참으로 설정하는 조건과 reportOnLeave를 거짓으로 설정하는 조건이 포함될 수 있다. 구체적으로, 다음 방법 중 적어도 하나 이상의 조합이 이용될 수 있다.In step 1425, the base station may transmit an RRC message (eg, RRCResume or RRCReconfiguration) containing measurement configuration information (MeasConfig) to the terminal. The transmission method of the RRC message (e.g., RRCResume or RRCReconfiguration) is similar to the above-described embodiments (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13). ) can be followed. Additionally, a condition that sets reportOnLeave to true and a condition that sets reportOnLeave to false can be included. Specifically, a combination of at least one of the following methods may be used.
방법 1: 특정 이벤트의 엔트리 또는 리빙 조건을 만족하는 경우, reportOnLeave를 참 또는 거짓으로 적용한다. 특정 이벤트는 전술한 예(예를 들어, 도 5)를 따를 수 있으며, 명시되지 않은 다른 이벤트에도 적용 가능할 수 있다.Method 1: If the entry or living conditions of a specific event are met, reportOnLeave is applied as true or false. Specific events may follow the examples described above (e.g., Figure 5), and may also be applicable to other events not specified.
방법 2: 특정 간섭 조건을 만족하거나 만족하지 않는 경우, reportOnLeave를 참 또는 거짓으로 적용한다. 특정 간섭 조건은 모든 간섭 셀들의 RSRP의 합이거나 적어도 하나 이상의 특정된 셀의 RSRP의 합에 대한 특정 임계값(threshold)일 수 있다.Method 2: Apply reportOnLeave as true or false when certain interference conditions are met or not met. The specific interference condition may be the sum of RSRPs of all interfering cells or a specific threshold for the sum of RSRPs of at least one specified cell.
방법 3: 특정 위치 조건을 만족하거나 만족하지 않는 경우, reportOnLeave를 참 또는 거짓으로 적용한다. 특정 위치 조건은 위치와 그 위치를 중심으로 하는 사각형 또는 원을 포함하는 범위의 형태이거나 범위를 나타내는 식별자(identity)일 수 있다.Method 3: Apply reportOnLeave as true or false when certain location conditions are met or not met. A specific location condition may be in the form of a location and a range containing a rectangle or circle centered on the location, or may be an identifier representing the range.
방법 4: 특정 경로 조건을 만족하거나 만족하지 않는 경우, reportOnLeave를 참 또는 거짓으로 적용한다. 특정 경로 조건은 단말이 보고한 비행 경로(flight path)의 일부분일 수 있다.Method 4: If a specific path condition is met or not met, reportOnLeave is applied as true or false. Specific route conditions may be part of the flight path reported by the terminal.
단말은 1430 단계에서, 1425 단계에서 수신한 측정 대상 정보 및 측정 설정 정보에 기반하여 측정 보고 절차의 시작 여부를 판단할 수 있다. 측정 보고 절차의 시작의 판단은 전술한 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12, 도 13)를 따를 수 있다. In steps 1430 and 1425, the terminal may determine whether to start the measurement reporting procedure based on the measurement target information and measurement setting information received. The determination of the start of the measurement reporting procedure may follow the examples described above (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13).
단말은 1435 단계에서, 1425 단계에서 설정된 방법에 따라 reportOnLeave를 참으로 설정하거나 거짓으로 설정할 수 있다. In step 1435, the terminal can set reportOnLeave to true or false according to the method set in step 1425.
일 실시 예로서, 전술한 1425 단계의 방법 1을 이용하면, 엔트리 조건을 만족하는 이벤트에 대해 reportOnLeave를 참으로 설정하는 조건이 포함되어있고, 엔트리 조건을 만족하는 이벤트가 발생된 경우 단말은 reportOnLeave를 참으로 설정할 수 있다. As an example, if method 1 of step 1425 described above is used, a condition for setting reportOnLeave to true for an event that satisfies the entry condition is included, and when an event that satisfies the entry condition occurs, the terminal sets reportOnLeave Can be set to true.
또 다른 실시 예로서, 전술한 1425 단계의 방법 2를 이용하면, 주변 간섭 셀들의 RSRP 값의 합이 임계값 이상인 경우 reportOnLeave를 참으로 설정하는 조건이 포함되어있고, 주변 간섭 셀들의 RSRP 값의 합이 임계값 이상인 경우 단말은 reportOnLeave를 참으로 설정할 수 있다. As another example, using method 2 in step 1425 described above, a condition for setting reportOnLeave to true is included when the sum of RSRP values of neighboring interference cells is greater than the threshold, and the sum of RSRP values of neighboring interference cells If it is above this threshold, the terminal can set reportOnLeave to true.
또 다른 실시 예로서, 전술한 1425 단계의 방법 3을 이용하면, 특정 위치 또는 범위에 진입한 경우 reportOnLeave를 참으로 설정하는 조건이 포함되어있고, 단말이 특정 위치 또는 범위에 진입한 것을 인지한 경우 단말은 reportOnLeave를 참으로 설정할 수 있다. As another example, using method 3 in step 1425 described above, a condition for setting reportOnLeave to true when entering a specific location or range is included, and when the terminal recognizes that it has entered a specific location or range. The terminal can set reportOnLeave to true.
또 다른 실시 예로서, 전술한 1425 단계의 방법 4를 이용하면, 특정 경로에 진입한 경우 reportOnLeave를 참으로 설정하는 조건이 포함되어있고, 단말이 특정 경로에 진입한 것을 인지한 경우 단말은 reportOnLeave를 참으로 설정할 수 있다.As another example, using method 4 in step 1425 described above, a condition for setting reportOnLeave to true when entering a specific path is included, and when the terminal recognizes that it has entered a specific path, the terminal sets reportOnLeave Can be set to true.
1440 단계에서, 단말은 전술한 실시 예(예를 들어, 도 5, 도 6, 도 7, 도 8, 도 9, 도 10, 도 11, 도 12, 도 13)에 따라 기지국에게 측정 보고를 전송할 수 있다.In step 1440, the terminal transmits a measurement report to the base station according to the above-described embodiment (e.g., FIGS. 5, 6, 7, 8, 9, 10, 11, 12, and 13). You can.
도 15는 본 개시의 실시 예에 따른 기지국의 구조를 도시한 도면이다.Figure 15 is a diagram showing the structure of a base station according to an embodiment of the present disclosure.
도 15를 참고하면, 기지국은 송수신부(1505), 제어부(1510), 저장부(1515)를 포함할 수 있다. 전술한 기지국의 통신 방법에 따라 송수신부(1505), 제어부(1510), 저장부(1515)가 동작할 수 있다. 네트워크 장치 또한 기지국의 구조와 대응될 수 있다. 다만, 기지국의 구성 요소가 전술한 예에 한정되는 것은 아니다. 예를 들어, 기지국은 전술한 구성 요소들 보다 더 많은 구성 요소를 포함하거나 더 적은 구성 요소를 포함할 수도 있다. 예를 들면, 기지국은 송수신부(1505) 및 제어부(1510)를 포함할 수 있다. 뿐만 아니라 송수신부(1505), 제어부(1510), 저장부(1515)가 하나의 칩(chip) 형태로 구현될 수도 있다.Referring to FIG. 15, the base station may include a transceiver 1505, a control unit 1510, and a storage unit 1515. The transceiver unit 1505, control unit 1510, and storage unit 1515 may operate according to the communication method of the base station described above. Network devices may also correspond to the structure of a base station. However, the components of the base station are not limited to the above examples. For example, a base station may include more or fewer components than those described above. For example, the base station may include a transceiver 1505 and a control unit 1510. In addition, the transmitting and receiving unit 1505, the control unit 1510, and the storage unit 1515 may be implemented in the form of a single chip.
송수신부(1505)는 기지국의 수신부와 기지국의 전송부를 통칭한 것으로 단말, 다른 기지국 또는 다른 네트워크 장치들과 신호를 송수신할 수 있다. 이때, 송수신하는 신호는 제어 정보와 데이터를 포함할 수 있다. 송수신부(1505)는 예를 들어, 단말에 시스템 정보를 전송할 수 있으며, 동기 신호 또는 기준 신호를 전송할 수 있다. 이를 위해, 송수신부(1505)는 전송되는 신호의 주파수를 상승 변환 및 증폭하는 RF 전송기와, 수신되는 신호를 저 잡음 증폭하고 주파수를 하강 변환하는 RF 수신기 등으로 구성될 수 있다. 다만, 이는 송수신부(1505)의 일 실시 예일 뿐이며, 송수신부(1505)의 구성요소가 RF 전송이기 및 RF 수신기에 한정되는 것은 아니다. 송수신부(1505)는 유무선 송수신부를 포함할 수 있으며, 신호를 송수신하기 위한 다양한 구성을 포함할 수 있다. 또한, 송수신부(1505)는 통신 채널(예를 들어, 무선 채널)을 통해 신호를 수신하여 제어부(1510)로 출력하고, 제어부(1510)로부터 출력된 신호를 통신 채널을 통해 전송할 수 있다. 또한, 송수신부(1505)는 통신 신호를 수신하여 프로세서로 출력하고, 프로세서로부터 출력된 신호를 유무선망을 통해 단말, 다른 기지국 또는 다른 엔티티로 전송할 수 있다.The transceiving unit 1505 is a general term for the receiving unit of the base station and the transmitting unit of the base station, and can transmit and receive signals with a terminal, another base station, or other network devices. At this time, the transmitted and received signals may include control information and data. For example, the transceiver 1505 may transmit system information to the terminal and may transmit a synchronization signal or a reference signal. To this end, the transceiver 1505 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency. However, this is only an example of the transceiver 1505, and the components of the transceiver 1505 are not limited to the RF transmitter and RF receiver. The transceiver 1505 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 1505 may receive a signal through a communication channel (eg, a wireless channel) and output it to the control unit 1510, and transmit the signal output from the control unit 1510 through the communication channel. Additionally, the transceiver unit 1505 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a terminal, another base station, or another entity through a wired or wireless network.
저장부(1515)는 기지국의 동작에 필요한 프로그램 및 데이터를 저장할 수 있다. 또한, 저장부(1515)는 기지국에서 획득되는 신호에 포함된 제어 정보 또는 데이터를 저장할 수 있다. 저장부(1515)는 롬(ROM), 램(RAM), 하드디스크, CD-ROM 및 DVD 등과 같은 저장 매체 또는 저장 매체들의 조합으로 구성될 수 있다. 또한 저장부(1515)는 송수신부(1505)를 통해 송수신되는 정보 및 제어부(1510)을 통해 생성되는 정보 중 적어도 하나를 저장할 수 있다.The storage unit 1515 can store programs and data necessary for the operation of the base station. Additionally, the storage unit 1515 may store control information or data included in signals obtained from the base station. The storage unit 1515 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media. Additionally, the storage unit 1515 may store at least one of information transmitted and received through the transmitting and receiving unit 1505 and information generated through the control unit 1510.
본 개시에서 제어부(1510)는, 회로 또는 어플리케이션 특정 통합 회로 또는 적어도 하나의 프로세서라고 정의될 수 있다. 프로세서는 통신을 위한 제어를 수행하는 CP(communication processor) 및 응용 프로그램 등 상위 계층을 제어하는 AP(application processor)를 포함할 수 있다. 제어부(1510)는 본 개시에서 제안하는 실시 예에 따른 기지국의 전반적인 동작을 제어할 수 있다. 예를 들어, 제어부(1510)는 상기에서 기술한 순서도에 따른 동작을 수행하도록 각 블록 간 신호 흐름을 제어할 수 있다.In the present disclosure, the control unit 1510 may be defined as a circuit or an application-specific integrated circuit or at least one processor. The processor 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 1510 can control the overall operation of the base station according to the embodiment proposed in this disclosure. For example, the control unit 1510 may control signal flow between each block to perform operations according to the flowchart described above.
도 16은 본 개시의 실시 예에 따른 단말의 구조를 도시한 도면이다. Figure 16 is a diagram showing the structure of a terminal according to an embodiment of the present disclosure.
도 16을 참고하면, 단말은 송수신부(1605), 제어부(1610), 저장부(1615)를 포함할 수 있다. 전술한 단말의 통신 방법에 따라 송수신부(1605), 제어부(1610), 저장부(1615)가 동작할 수 있다. 다만, 단말의 구성 요소가 전술한 예에 한정되는 것은 아니다. 예를 들어, 단말은 전술한 구성 요소들 보다 더 많은 구성 요소를 포함하거나 더 적은 구성 요소를 포함할 수도 있다. 예를 들면, 단말은 송수신부(1605) 및 제어부(1610)를 포함할 수 있다. 뿐만 아니라 송수신부(1605), 제어부(1610), 저장부(1615)가 하나의 칩(chip) 형태로 구현될 수도 있다.Referring to FIG. 16, the terminal may include a transceiver 1605, a control unit 1610, and a storage unit 1615. The transmitting and receiving unit 1605, the control unit 1610, and the storage unit 1615 may operate according to the communication method of the terminal described above. However, the components of the terminal are not limited to the examples described above. For example, the terminal may include more or fewer components than the aforementioned components. For example, the terminal may include a transceiver 1605 and a control unit 1610. In addition, the transmitting and receiving unit 1605, the control unit 1610, and the storage unit 1615 may be implemented in the form of a single chip.
송수신부(1605)는 단말의 수신부와 단말의 전송부를 통칭한 것으로 기지국, 다른 단말 또는 네트워크 엔티티와 신호를 송수신할 수 있다. 기지국과 송수신하는 신호는 제어 정보와 데이터를 포함할 수 있다. 송수신부(1605)는 예를 들어, 기지국으로부터 시스템 정보를 수신할 수 있으며, 동기 신호 또는 기준 신호를 수신할 수 있다. 이를 위해, 송수신부(1605)는 전송되는 신호의 주파수를 상승 변환 및 증폭하는 RF 전송이기와, 수신되는 신호를 저 잡음 증폭하고 주파수를 하강 변환하는 RF 수신기 등으로 구성될 수 있다. 다만, 이는 송수신부(1605)의 일 실시 예일 뿐이며, 송수신부(1605)의 구성요소가 RF 전송이기 및 RF 수신기에 한정되는 것은 아니다. 또한, 송수신부(1605)는 유무선 송수신부를 포함할 수 있으며, 신호를 송수신하기 위한 다양한 구성을 포함할 수 있다. 또한, 송수신부(1605)는 무선 채널을 통해 신호를 수신하여 제어부(1610)로 출력하고, 제어부(1610)로부터 출력된 신호를 무선 채널을 통해 전송할 수 있다. 또한, 송수신부(1605)는 통신 신호를 수신하여 프로세서로 출력하고, 프로세서로부터 출력된 신호를 유무선망을 통해 네트워크 엔티티로 전송할 수 있다.The transmitting and receiving unit 1605 is a general term for the terminal's receiving unit and the terminal's transmitting unit, and can transmit and receive signals with a base station, other terminals, or network entities. Signals transmitted and received from the base station may include control information and data. For example, the transceiver 1605 may receive system information from a base station and may receive a synchronization signal or a reference signal. To this end, the transceiver 1605 may be composed of an RF transmitter that up-converts and amplifies the frequency of the transmitted signal, and an RF receiver that amplifies the received signal with low noise and down-converts the frequency. However, this is only an example of the transceiver 1605, and the components of the transceiver 1605 are not limited to the RF transmitter and RF receiver. Additionally, the transceiver 1605 may include a wired or wireless transceiver and may include various components for transmitting and receiving signals. Additionally, the transceiver 1605 may receive a signal through a wireless channel and output it to the control unit 1610, and transmit the signal output from the control unit 1610 through a wireless channel. Additionally, the transceiver unit 1605 may receive a communication signal, output it to a processor, and transmit the signal output from the processor to a network entity through a wired or wireless network.
저장부(1615)는 단말의 동작에 필요한 프로그램 및 데이터를 저장할 수 있다. 또한, 메모리(1615)는 단말에서 획득되는 신호에 포함된 제어 정보 또는 데이터를 저장할 수 있다. 저장부(1615)는 롬(ROM), 램(RAM), 하드디스크, CD-ROM 및 DVD 등과 같은 저장 매체 또는 저장 매체들의 조합으로 구성될 수 있다.The storage unit 1615 can store programs and data necessary for operation of the terminal. Additionally, the memory 1615 may store control information or data included in signals obtained from the terminal. The storage unit 1615 may be composed of a storage medium such as ROM, RAM, hard disk, CD-ROM, and DVD, or a combination of storage media.
본 개시에서 제어부(1610)는, 회로 또는 어플리케이션 특정 통합 회로 또는 적어도 하나의 프로세서라고 정의될 수 있다. 프로세서는 통신을 위한 제어를 수행하는 CP(communication processor) 및 응용 프로그램 등 상위 계층을 제어하는 AP(application processor)를 포함할 수 있다. 제어부(1610)는 본 개시에서 제안하는 실시 예에 따른 단말의 전반적인 동작을 제어할 수 있다. 예를 들어, 제어부(1610)는 상기에서 기술한 순서도에 따른 동작을 수행하도록 각 블록 간 신호 흐름을 제어할 수 있다.In the present disclosure, the control unit 1610 may be defined as a circuit or an application-specific integrated circuit or at least one processor. The processor 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 1610 can control the overall operation of the terminal according to the embodiment proposed in this disclosure. For example, the control unit 1610 may control signal flow between each block to perform operations according to the flowchart described above.
본 개시의 청구항 또는 명세서에 기재된 실시 예들에 따른 방법들은 하드웨어, 소프트웨어, 또는 하드웨어와 소프트웨어의 조합의 형태로 구현될(implemented) 수 있다. Methods according to 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.
소프트웨어로 구현하는 경우, 하나 이상의 프로그램(소프트웨어 모듈)을 저장하는 컴퓨터 판독 가능 저장 매체가 제공될 수 있다. 컴퓨터 판독 가능 저장 매체에 저장되는 하나 이상의 프로그램은, 전자 장치(device) 내의 하나 이상의 프로세서에 의해 실행 가능하도록 구성된다(configured for execution). 하나 이상의 프로그램은, 전자 장치로 하여금 본 개시의 청구항 또는 명세서에 기재된 실시 예들에 따른 방법들을 실행하게 하는 명령어(instructions)를 포함한다. When implemented as software, a computer-readable storage medium that stores one or more programs (software modules) may be provided. One or more programs stored in a computer-readable storage medium are configured to be executable by one or more processors in an electronic device (configured for execution). One or more programs include instructions that cause the electronic device to execute methods according to embodiments described in the claims or specification of the present disclosure.
이러한 프로그램(소프트웨어 모듈, 소프트웨어)은 랜덤 액세스 메모리(random access memory), 플래시(flash) 메모리를 포함하는 불휘발성(non-volatile) 메모리, 롬(ROM: Read Only Memory), 전기적 삭제가능 프로그램가능 롬(EEPROM: Electrically Erasable Programmable Read Only Memory), 자기 디스크 저장 장치(magnetic disc storage device), 컴팩트 디스크 롬(CD-ROM: Compact Disc-ROM), 디지털 다목적 디스크(DVDs: Digital Versatile Discs) 또는 다른 형태의 광학 저장 장치, 마그네틱 카세트(magnetic cassette)에 저장될 수 있다. 또는, 이들의 일부 또는 전부의 조합으로 구성된 메모리에 저장될 수 있다. 또한, 각각의 구성 메모리는 다수 개 포함될 수도 있다. These programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable programmable ROM. (EEPROM: Electrically Erasable Programmable Read Only Memory), magnetic disc storage device, Compact Disc-ROM (CD-ROM: Compact Disc-ROM), Digital Versatile Discs (DVDs), or other types of It can be stored in an optical storage device or magnetic cassette. Alternatively, it may be stored in a memory consisting of a combination of some or all of these. Additionally, multiple configuration memories may be included.
또한, 상기 프로그램은 인터넷(Internet), 인트라넷(Intranet), LAN(Local Area Network), WLAN(Wide LAN), 또는 SAN(Storage Area Network)과 같은 통신 네트워크, 또는 이들의 조합으로 구성된 통신 네트워크를 통하여 접근(access)할 수 있는 부착 가능한(attachable) 저장 장치(storage device)에 저장될 수 있다. 이러한 저장 장치는 외부 포트를 통하여 본 개시의 실시 예를 수행하는 장치에 접속할 수 있다. 또한, 통신 네트워크상의 별도의 저장장치가 본 개시의 실시 예를 수행하는 장치에 접속할 수도 있다.In addition, the program may be operated through a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that is accessible. This storage device can be connected to a device performing an embodiment of the present disclosure through an external port. Additionally, a separate storage device on a communication network may be connected to the device performing an embodiment of the present disclosure.
상술한 본 개시의 구체적인 실시 예들에서, 발명에 포함되는 구성 요소는 제시된 구체적인 실시 예에 따라 단수 또는 복수로 표현되었다. 그러나, 단수 또는 복수의 표현은 설명의 편의를 위해 제시한 상황에 적합하게 선택된 것으로서, 본 개시가 단수 또는 복수의 구성 요소에 제한되는 것은 아니며, 복수로 표현된 구성 요소라 하더라도 단수로 구성되거나, 단수로 표현된 구성 요소라 하더라도 복수로 구성될 수 있다.In the specific embodiments of the present disclosure described above, components included in the invention are expressed in singular or plural numbers depending on the specific embodiment presented. However, 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, and even components expressed in plural may be composed of singular or singular. Even expressed components may be composed of plural elements.
한편 본 개시의 상세한 설명에서는 구체적인 실시 예에 관해 설명하였으나, 본 개시의 범위에서 벗어나지 않는 한도 내에서 여러 가지 변형이 가능함은 물론이다. 그러므로 본 개시의 범위는 설명된 실시 예에 국한되어 정해져서는 아니 되며 후술하는 특허청구의 범위뿐만 아니라 이 특허청구의 범위와 균등한 것들에 의해 정해져야 한다.Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

Claims (15)

  1. 무선 통신 시스템에서 단말에 의해 수행되는 방법에 있어서,In a method performed by a terminal in a wireless communication system,
    기지국으로부터 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 수신하는 단계;Receiving a first measurement configuration from a base station including information about the number of triggering cells for which an event must be satisfied to trigger a measurement report;
    적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반하여 상기 측정 보고를 수행하는 단계; If the event is satisfied for at least one cell, performing the measurement report based on information about the number of triggering cells;
    상기 기지국으로부터 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 수신하는 단계; 및Receiving a second measurement setting from the base station including information instructing not to delete the entry in the measurement report; and
    상기 제2 측정 설정에 기반하여 측정을 수행하는 단계를 포함하며, comprising performing a measurement based on the second measurement setting,
    상기 지시자에 기반하여 상기 측정 보고의 엔트리는 삭제되는 않는 것을 특징으로 하는 방법.A method wherein an entry in the measurement report is not deleted based on the indicator.
  2. 제1항에 있어서, According to paragraph 1,
    상기 측정 보고를 수행하는 단계는,The step of performing the measurement report is,
    상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 큰 경우, 상기 측정 보고를 수행하는 것을 특징으로 하는 방법. A method characterized in that, when the number of the at least one cell is greater than the number of the triggering cells, the measurement report is performed.
  3. 제1항에 있어서, According to paragraph 1,
    상기 제1 측정 설정에 상기 측정 보고를 위한 셀 리스트가 포함되며, The first measurement setting includes a cell list for the measurement report,
    상기 측정 보고를 수행하는 단계는, The step of performing the measurement report is,
    상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되거나, 상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되었을 때 상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 크거나, 또는 상기 이벤트가 만족되는 셀 중 상기 셀 리스트에 포함된 셀의 수가 상기 트리거링 셀의 수보다 큰 경우 상기 측정 보고를 수행하는 것을 특징으로 하는 방법. When the event is satisfied for a cell included in the cell list, or the event is satisfied for a cell included in the cell list, the number of the at least one cell is greater than the number of the triggering cells, or the event is A method characterized in that the measurement report is performed when the number of cells included in the cell list among the satisfied cells is greater than the number of triggering cells.
  4. 제1항에 있어서, According to paragraph 1,
    셀에 대해 리빙 조건을 만족하였을 때 상기 단말이 측정 보고 절차를 시작할 것을 지시하는 정보가 참 (TRUE)으로 설정되어 상기 제2 측정 설정에 포함되며, When the living conditions for a cell are satisfied, information indicating that the terminal starts a measurement reporting procedure is set to TRUE and included in the second measurement setting,
    상기 이벤트가 만족되는 셀 중 적어도 하나의 셀에 대해 리빙 조건을 만족하는 경우, 상기 측정 보고가 수행되는 것을 특징으로 하는 방법. A method wherein the measurement report is performed when a living condition is satisfied for at least one of the cells for which the event is satisfied.
  5. 무선 통신 시스템에서 기지국에 의해 수행되는 방법에 있어서,In a method performed by a base station in a wireless communication system,
    측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 단말에 전송하는 단계;Transmitting a first measurement setting including information about the number of triggering cells in which an event must be satisfied to trigger a measurement report to the terminal;
    적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반한 상기 측정 보고를 상기 단말로부터 수신하는 단계; If the event is satisfied for at least one cell, receiving the measurement report based on information about the number of triggering cells from the terminal;
    상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 상기 단말에 전송하는 단계를 포함하는 것을 특징으로 하는 방법.A method comprising transmitting to the terminal a second measurement setting including information instructing not to delete the entry in the measurement report.
  6. 제5항에 있어서, According to clause 5,
    상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 큰 경우, 상기 측정 보고가 수신되는 것을 특징으로 하는 방법. When the number of the at least one cell is greater than the number of triggering cells, the measurement report is received.
  7. 제5항에 있어서, According to clause 5,
    상기 제1 측정 설정에 상기 보고를 위한 셀 리스트가 포함되며, The first measurement setting includes a cell list for the report,
    상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되거나, 상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되었을 때 상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 크거나, 또는 상기 이벤트가 만족되는 셀 중 상기 셀 리스트에 포함된 셀의 수가 상기 트리거링 셀의 수보다 큰 경우 상기 측정 보고가 수신되는 것을 특징으로 하는 방법. When the event is satisfied for a cell included in the cell list, or the event is satisfied for a cell included in the cell list, the number of the at least one cell is greater than the number of the triggering cells, or the event is A method characterized in that the measurement report is received when the number of cells included in the cell list among the satisfied cells is greater than the number of triggering cells.
  8. 제5항에 있어서, According to clause 5,
    셀에 대해 리빙 조건을 만족하였을 때 상기 단말이 측정 보고 절차를 시작할 것을 지시하는 정보가 참 (TRUE)으로 설정되어 상기 제2 측정 설정에 포함되고, When the living conditions for a cell are satisfied, information indicating that the terminal starts a measurement reporting procedure is set to TRUE and included in the second measurement setting,
    상기 이벤트가 만족되는 셀 중 적어도 하나의 셀에 대해 리빙 조건을 만족하는 경우, 상기 측정 보고가 수신되는 것을 특징으로 하는 방법. A method wherein the measurement report is received when a living condition is satisfied for at least one of the cells for which the event is satisfied.
  9. 무선 통신 시스템에서 단말에 있어서,In a terminal in a wireless communication system,
    송수신부; 및Transmitter and receiver; and
    상기 송수신부와 연결된 제어부를 포함하고, Including a control unit connected to the transceiver unit,
    상기 제어부는,The control unit,
    기지국으로부터 측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 수신하고,receive a first measurement setup from the base station, including information about the number of triggering cells for which an event must be satisfied to trigger a measurement report;
    적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반하여 상기 측정 보고를 수행하고,If the event is satisfied for at least one cell, perform the measurement report based on information about the number of triggering cells,
    상기 기지국으로부터 상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 수신하고,Receiving a second measurement setting from the base station including information instructing not to delete the entry in the measurement report,
    상기 제2 측정 설정에 기반하여 측정을 수행하며, Perform measurement based on the second measurement setting,
    상기 지시자에 기반하여 상기 측정 보고의 엔트리는 삭제되는 않는 것을 특징으로 하는 단말.A terminal characterized in that the entry of the measurement report is not deleted based on the indicator.
  10. 제9항에 있어서, According to clause 9,
    상기 제어부는,The control unit,
    상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 큰 경우, 상기 측정 보고를 수행하는 것을 특징으로 하는 단말. A terminal characterized in that it performs the measurement report when the number of the at least one cell is greater than the number of the triggering cells.
  11. 제9항에 있어서, According to clause 9,
    상기 제1 측정 설정에 상기 측정 보고를 위한 셀 리스트가 포함되며, The first measurement setting includes a cell list for the measurement report,
    상기 제어부는, The control unit,
    상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되거나, 상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되었을 때 상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 크거나, 또는 상기 이벤트가 만족되는 셀 중 상기 셀 리스트에 포함된 셀의 수가 상기 트리거링 셀의 수보다 큰 경우 상기 측정 보고를 수행하는 것을 특징으로 하는 단말. When the event is satisfied for a cell included in the cell list, or the event is satisfied for a cell included in the cell list, the number of the at least one cell is greater than the number of the triggering cells, or the event is A terminal characterized in that it performs the measurement report when the number of cells included in the cell list among the satisfied cells is greater than the number of triggering cells.
  12. 제9항에 있어서, According to clause 9,
    셀에 대해 리빙 조건을 만족하였을 때 상기 단말이 측정 보고 절차를 시작할 것을 지시하는 정보가 참 (TRUE)으로 설정되어 상기 제2 측정 설정에 포함되며, When the living conditions for a cell are satisfied, information indicating that the terminal starts a measurement reporting procedure is set to TRUE and included in the second measurement setting,
    상기 이벤트가 만족되는 셀 중 적어도 하나의 셀에 대해 리빙 조건을 만족하는 경우, 상기 측정 보고가 수행되는 것을 특징으로 하는 단말. A terminal wherein the measurement report is performed when a living condition is satisfied for at least one of the cells for which the event is satisfied.
  13. 무선 통신 시스템에서 기지국에 있어서,In a base station in a wireless communication system,
    송수신부; 및Transmitter and receiver; and
    상기 송수신부와 연결된 제어부를 포함하며, It includes a control unit connected to the transceiver unit,
    상기 제어부는, The control unit,
    측정 보고를 트리거링 하기 위해 이벤트가 만족되어야 하는 트리거링 셀의 수에 대한 정보를 포함한 제1 측정 설정을 단말에 전송하고,Transmitting a first measurement setting including information about the number of triggering cells in which an event must be satisfied to trigger a measurement report to the terminal,
    적어도 하나의 셀에 대해 상기 이벤트가 만족되는 경우, 상기 트리거링 셀의 수에 대한 정보에 기반한 상기 측정 보고의 엔트리를 상기 단말로부터 수신하고, If the event is satisfied for at least one cell, receive an entry of the measurement report based on information about the number of triggering cells from the terminal,
    상기 측정 보고의 엔트리를 삭제하지 않도록 지시하는 정보를 포함한 제2 측정 설정을 상기 단말에 전송하는 것을 특징으로 하는 기지국.A base station characterized in that it transmits a second measurement setting including information instructing not to delete the entry in the measurement report to the terminal.
  14. 제13항에 있어서, According to clause 13,
    상기 제1 측정 설정에 상기 측정 보고를 위한 셀 리스트가 포함되며, The first measurement setting includes a cell list for the measurement report,
    상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 큰 경우이거나, 상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되거나, 상기 셀 리스트에 포함된 셀에 대해 상기 이벤트가 만족되었을 때 상기 적어도 하나의 셀의 수가 상기 트리거링 셀의 수보다 크거나, 또는 상기 이벤트가 만족되는 셀 중 상기 셀 리스트에 포함된 셀의 수가 상기 트리거링 셀의 수보다 큰 경우 상기 측정 보고가 수신되는 것을 특징으로 하는 기지국. When the number of the at least one cell is greater than the number of the triggering cells, the event is satisfied for a cell included in the cell list, or the event is satisfied for a cell included in the cell list, the at least one The base station is characterized in that the measurement report is received when the number of cells is greater than the number of triggering cells, or when the number of cells included in the cell list among cells for which the event is satisfied is greater than the number of triggering cells.
  15. 제13항에 있어서, According to clause 13,
    셀에 대해 리빙 조건을 만족하였을 때 상기 단말이 측정 보고 절차를 시작할 것을 지시하는 정보가 참 (TRUE)으로 설정되어 상기 제2 측정 설정에 포함되고, When the living condition for a cell is satisfied, information indicating that the terminal starts a measurement reporting procedure is set to TRUE and included in the second measurement setting,
    상기 이벤트가 만족되는 셀 중 적어도 하나의 셀에 대해 리빙 조건을 만족하는 경우, 상기 측정 보고가 수신되는 것을 특징으로 하는 기지국. A base station wherein the measurement report is received when a living condition is satisfied for at least one of the cells for which the event is satisfied.
PCT/KR2023/017097 2022-11-03 2023-10-31 Method and device for improved measurement reporting for unmanned flight terminal in wireless communication system WO2024096512A1 (en)

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