WO2023132292A1 - Communication device, base station, and communication control method - Google Patents

Communication device, base station, and communication control method Download PDF

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Publication number
WO2023132292A1
WO2023132292A1 PCT/JP2022/047948 JP2022047948W WO2023132292A1 WO 2023132292 A1 WO2023132292 A1 WO 2023132292A1 JP 2022047948 W JP2022047948 W JP 2022047948W WO 2023132292 A1 WO2023132292 A1 WO 2023132292A1
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stationary
criterion
measurement
cell edge
criteria
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PCT/JP2022/047948
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French (fr)
Japanese (ja)
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治彦 曽我部
秀明 ▲高▼橋
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株式会社デンソー
トヨタ自動車株式会社
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Publication of WO2023132292A1 publication Critical patent/WO2023132292A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to communication devices, base stations, and communication control methods used in mobile communication systems.
  • relaxation measurement (so-called RRM (Radio Resource Management) relaxation) that relaxes the measurement of radio quality for other cells different from the serving cell has been introduced (see Non-Patent Document 1).
  • the communication device performs relaxation measurement based on the relaxation criterion used for selecting whether or not to perform relaxation measurement (hereinafter referred to as first relaxation measurement as appropriate) that relaxes measurement of radio quality for other cells different from the serving cell. Select whether to execute or not. This eliminates the need for the communication device to frequently measure the radio quality of other cells, thereby saving power and improving battery life.
  • a relaxation measurement (hereinafter referred to as a second relaxation measurement) that further relaxes the measurement of radio quality for other cells based on a relaxation criterion different from the above-mentioned relaxation criterion, compared to the first relaxation measurement described above.
  • the second relaxation measurement can reduce the number of measurements compared to the first relaxation measurement, and power saving and battery life can be further improved.
  • a communication device includes a receiving unit that receives information indicating a stationary reference and information indicating a stationary cell edge reference from a base station, and the stationary reference and the stationary cell edge reference are set, and a controller for performing intra-frequency cell measurements based on a measurement interval to which a measurement relaxation factor is applied when the stationary cell edge criterion is not met and the stationary criterion is met.
  • the base station applies a measurement relaxation factor when a stationary criterion and a stationary cell edge criterion are set and the stationary criterion is satisfied without satisfying the stationary cell edge criterion.
  • a transmission unit configured to transmit the information indicating the stationary reference and the information indicating the stationary cell edge reference to a communication apparatus that performs intra-frequency cell measurement based on the measurement interval.
  • a communication method is a communication method executed by a communication device.
  • the communication method includes the steps of: receiving information indicating a stationary reference and information indicating a stationary cell edge reference from a base station; performing measurements of intra-frequency cells based on a measurement interval with a measurement relaxation factor applied if said stationary criterion is met while the criterion is not met.
  • FIG. 1 is a diagram showing the configuration of a mobile communication system according to an embodiment.
  • FIG. 2 is a diagram illustrating a configuration example of a protocol stack according to the embodiment;
  • FIG. 3 is a diagram illustrating the configuration of a UE according to the embodiment;
  • FIG. 4 is a diagram showing the configuration of a base station according to the embodiment.
  • FIG. 5 is a sequence diagram for explaining a first operation example and a second operation example of the mobile communication system according to the embodiment.
  • FIG. 6 is a diagram (part 1) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 7 is a diagram (part 2) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 8 is a diagram (part 3) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 9 is a diagram (part 4) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 10 is a diagram (No. 5) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 11 is a diagram (No. 6) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 12 is a diagram (No. 7) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 13 is a diagram (No. 8) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 14 is a diagram (9) for explaining the first operation example of the mobile communication system according to the embodiment.
  • FIG. 15 is a diagram (10) for explaining the first operation example of the mobile communication system according to the embodiment;
  • FIG. 16 is a diagram (No. 11) for explaining the first operation example of the mobile communication system according to the embodiment.
  • 17 is a diagram (part 12) for explaining the first operation example of the mobile communication system according to the embodiment;
  • FIG. FIG. 18 is a diagram (13) for explaining the first operation example of the mobile communication system according to the embodiment.
  • 19 is a diagram (part 14) for explaining the first operation example of the mobile communication system according to the embodiment;
  • FIG. FIG. 20 is a diagram (part 1) for explaining a second operation example of the mobile communication system according to the embodiment;
  • FIG. 21 is a diagram (part 2) for explaining a second operation example of the mobile communication system according to the embodiment
  • FIG. 22 is a diagram (part 3) for explaining the second operation example of the mobile communication system according to the embodiment
  • FIG. 23 is a diagram (part 4) for explaining the second operation example of the mobile communication system according to the embodiment
  • FIG. 24 is a diagram (No. 5) for explaining the second operation example of the mobile communication system according to the embodiment
  • FIG. 25 is a diagram (No. 6) for explaining the second operation example of the mobile communication system according to the embodiment.
  • FIG. 26 is a diagram (No. 7) for explaining the second operation example of the mobile communication system according to the embodiment.
  • FIG. 27 is a diagram (No. 8) for explaining the second operation example of the mobile communication system according to the embodiment.
  • FIG. 28 is a diagram (part 9) for explaining the second operation example of the mobile communication system according to the embodiment;
  • one object of the present disclosure is to provide a communication device, a base station, and a communication method that enable appropriate execution of mitigation measurement.
  • the mobile communication system 1 is, for example, a system conforming to 3GPP Technical Specifications (TS).
  • TS 3GPP Technical Specifications
  • NR New Radio
  • the mobile communication system 1 has a network 10 and user equipment (UE) 100 communicating with the network 10 .
  • the network 10 includes an NG-RAN (Next Generation Radio Access Network) 20, which is a 5G radio access network, and a 5GC (5G Core Network) 30, which is a 5G core network.
  • NG-RAN Next Generation Radio Access Network
  • 5G Core Network 5G Core Network
  • the UE 100 is an example of a communication device.
  • the UE 100 may be a mobile wireless communication device.
  • UE 100 may be a device used by a user.
  • the UE 100 may be a user equipment defined by 3GPP technical specifications.
  • the UE 100 is, for example, a portable device such as a mobile phone terminal such as a smart phone, a tablet terminal, a notebook PC, a communication module, or a communication card.
  • the UE 100 may be a vehicle (eg, car, train, etc.) or a device provided therein.
  • the UE 100 may be a transport body other than a vehicle (for example, a ship, an airplane, etc.) or a device provided thereon.
  • the UE 100 may be a sensor or a device attached thereto.
  • the UE 100 includes a mobile station, a mobile terminal, a mobile device, a mobile unit, a subscriber station, a subscriber terminal, a subscriber device, a subscriber unit, a wireless station, a wireless terminal, a wireless device, a wireless unit, a remote station, and a remote terminal. , remote device, or remote unit.
  • NR UEs 100 two types are assumed as NR UEs 100: a general UE 100A and a specific UE 100B having reduced communication capability compared to the general UE 100A.
  • the general UE 100A has advanced communication capabilities such as high-speed, large-capacity (enhanced mobile broadband: eMBB) and ultra-reliable and low-latency communications (URLLC), which are features of NR.
  • the specific UE 100B is a UE with reduced device cost and complexity compared to the general UE 100A.
  • the specific UE 100B is a UE 100 having middle-range performance and price for IoT.
  • the maximum bandwidth used for wireless communication is set narrower, and the number of receivers is smaller. . Note that the receiver is sometimes called a reception branch.
  • a specific UE may be referred to as a Reduced capability NR device or a RedCap UE.
  • the specific UE 100B is LPWA (Low Power Wide Area) standard, for example, LTE Cat. (Long Term Evolution UE Category) 1/1bis, LTE Cat. M1 (LTE-M), LTE Cat. It may be possible to communicate at a communication speed equal to or higher than the communication speed specified by NB1 (NB-IoT).
  • the specific UE 100B may be able to communicate with a bandwidth equal to or greater than the bandwidth defined by the LPWA standard.
  • the specific UE 100B may have a limited bandwidth for communication compared to Rel-15 or Rel-16 UEs. For example, for FR1 (Frequency Range 1), the maximum bandwidth of the specific UE 100B may be 20 MHz.
  • the maximum bandwidth of the specific UE 100B may be 100 MHz.
  • the specific UE 100B may have only one receiver that receives radio signals.
  • the specific UE 100B may be, for example, a wearable device, a sensor device, or the like.
  • NG-RAN 20 includes multiple base stations 200 .
  • Each base station 200 manages at least one cell.
  • a cell constitutes the minimum unit of a communication area.
  • One cell belongs to one frequency (carrier frequency).
  • the term “cell” may represent a radio communication resource and may also represent a communication target of UE 100 .
  • Each base station 200 can perform radio communication with the UE 100 residing in its own cell.
  • the base station 200 communicates with the UE 100 using the RAN protocol stack. Details of the protocol stack will be described later.
  • Base stations 200 are also connected to other base stations 200 (which may be referred to as adjacent base stations) via Xn interfaces.
  • Base station 200 communicates with neighboring base stations via the Xn interface.
  • the base station 200 also provides NR user plane and control plane protocol termination towards the UE 100 and is connected to the 5GC 30 via the NG interface.
  • gNodeB gNodeB
  • the 5GC 30 includes a core network device 300.
  • the core network device 300 includes, for example, AMF (Access and Mobility Management Function) and/or UPF (User Plane Function).
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • AMF performs mobility management of UE100.
  • UPF provides functions specialized for U-plane processing.
  • the AMF and UPF are connected with the base station 200 via the NG interface.
  • the protocol of the wireless section between the UE 100 and the base station 200 includes a physical (PHY) layer, a MAC (Medium Access Control) layer, an RLC (Radio Link Control) layer, a PDCP (Packet Data Convergence Protocol) layer, It has an RRC (Radio Resource Control) layer.
  • PHY physical
  • MAC Medium Access Control
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • RRC Radio Resource Control
  • the PHY layer performs encoding/decoding, modulation/demodulation, antenna mapping/demapping, and resource mapping/demapping. Data and control information are transmitted between the PHY layer of the UE 100 and the PHY layer of the base station 200 via physical channels.
  • the MAC layer performs data priority control, retransmission processing by hybrid ARQ (Hybrid Automatic Repeat Quest: HARQ), random access procedures, and the like. Data and control information are transmitted between the MAC layer of the UE 100 and the MAC layer of the base station 200 via transport channels.
  • the MAC layer of base station 200 includes a scheduler. The scheduler determines uplink and downlink transport formats (transport block size, modulation and coding scheme (MCS)) and allocation resources to the UE 100 .
  • MCS modulation and coding scheme
  • the RLC layer uses the functions of the MAC layer and PHY layer to transmit data to the RLC layer on the receiving side. Data and control information are transmitted between the RLC layer of the UE 100 and the RLC layer of the base station 200 via logical channels.
  • the PDCP layer performs header compression/decompression and encryption/decryption.
  • An SDAP (Service Data Adaptation Protocol) layer may be provided as an upper layer of the PDCP layer.
  • the SDAP (Service Data Adaptation Protocol) layer performs mapping between an IP flow, which is the unit of QoS (Quality of Service) control performed by the core network, and a radio bearer, which is the unit of AS (Access Stratum) QoS control.
  • the RRC layer controls logical channels, transport channels and physical channels according to radio bearer establishment, re-establishment and release.
  • RRC signaling for various settings is transmitted between the RRC layer of UE 100 and the RRC layer of base station 200 .
  • UE 100 When there is an RRC connection between the RRC of UE 100 and the RRC of base station 200, UE 100 is in the RRC connected state. If there is no RRC connection between the RRC of the UE 100 and the RRC of the base station 200, the UE 100 is in RRC idle state. When the RRC connection between the RRC of UE 100 and the RRC of base station 200 is suspended, UE 100 is in RRC inactive state.
  • the NAS layer located above the RRC layer in the UE 100 performs session management and mobility management for the UE 100.
  • NAS signaling is transmitted between the NAS layer of UE 100 and the NAS layer of core network device 300 .
  • the UE 100 has an application layer and the like in addition to the radio interface protocol.
  • UE 100 includes communication unit 120 and control unit 140 .
  • the communication unit 120 performs wireless communication with the base station 200 by transmitting and receiving wireless signals to and from the base station 200 .
  • the communication unit 120 has at least one reception unit 121 and at least one transmission unit 122 .
  • the receiving section 121 and the transmitting section 122 may be configured including an antenna and an RF circuit.
  • the antenna converts a signal into radio waves and radiates the radio waves into space. Also, the antenna receives radio waves in space and converts the radio waves into signals.
  • the RF circuitry performs analog processing of signals transmitted and received through the antenna.
  • the RF circuitry may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
  • the receiving unit 121 may be called a receiver (RX: Receiver).
  • the transmitter 122 may be referred to as a transmitter (TX).
  • TX transmitter
  • the number of receivers included in the communication unit 120 may be two to four.
  • the UE 100 is the specific UE 100B, the number of receivers included in the communication unit 120 may be one or two.
  • the control unit 140 performs various controls in the UE 100.
  • the control unit 140 controls communication with the base station 200 via the communication unit 120 .
  • the operation of the UE 100 which will be described later, may be an operation under the control of the control unit 140.
  • the control unit 140 may include at least one processor capable of executing a program and a memory that stores the program.
  • the processor may execute a program to operate the controller 140 .
  • Control unit 140 may include a digital signal processor that performs digital processing of signals transmitted and received through the antenna and RF circuitry.
  • the digital processing includes processing of the protocol stack of the RAN. Note that the memory stores programs executed by the processor, parameters related to the programs, and data related to the programs.
  • the memory is ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), RAM (Random Access Mem ory) and flash memory. All or part of the memory may be included within the processor.
  • the receiving unit 121 transmits the relaxation criterion information indicating the relaxation criterion used for selecting whether or not to perform the relaxation measurement for relaxing the measurement of the radio quality of the cell different from the serving cell to the base station.
  • receive from The control unit 140 selects whether or not to perform the relaxation measurement based on the relaxation criteria.
  • the relaxation measure is selected based on a first relaxation criterion included in the relaxation criterion and a second relaxation criterion included in the relaxation criterion and is more relaxed than the first relaxation measurement.
  • the control unit 140 uses cell-edge information indicating a cell-edge criterion for detecting that the UE 100 is not at the cell edge as the first mitigation criterion and a low mobility state for detecting that the UE 100 is in a low-mobility state as the first mitigation criterion.
  • the control unit 140 When the mitigation criterion information includes at least one of low mobility information indicating a mobility criterion and stationary information indicating a stationary criterion for detecting that the UE 100 is in a stationary state as a second mitigation criterion, the control unit 140, When the stationary criterion is met, it chooses to perform the second mitigation measurement even if at least one of the cell edge criterion and the low mobility criterion is met. Thus, when the stationary criterion is satisfied, by selecting the execution of the second relaxation measurement in which the measurement is more relaxed than the first relaxation measurement, the UE 100 can appropriately perform the relaxation measurement, saving power and It is possible to further improve the battery life.
  • the base station 200 has a radio communication section 220 , a network communication section 230 and a control section 240 .
  • the radio communication unit 220 receives radio signals from the UE 100 and transmits radio signals to the UE 100.
  • the radio communication unit 220 may include one or more receivers that receive radio signals and one or more transmitters that transmit radio signals.
  • the network communication unit 230 transmits and receives signals to and from the network.
  • the network communication unit 230 receives signals from adjacent base stations connected via an Xn interface, which is an interface between base stations, and transmits signals to the adjacent base stations. Also, the network communication unit 230 receives a signal from the core network device 300 connected via the NG interface, for example, and transmits the signal to the core network device 300 .
  • the control unit 240 performs various controls in the base station 200.
  • the control unit 240 controls communication with the UE 100 via the radio communication unit 220, for example.
  • the control unit 240 controls communication with nodes (for example, adjacent base stations, the core network device 300) via the network communication unit 230, for example. Operations of the base station 200 described later may be operations under the control of the control unit 240 .
  • the control unit 240 may include at least one processor that can execute programs and a memory that stores the programs.
  • the processor may execute a program to operate the controller 240 .
  • Control unit 240 may include a digital signal processor that performs digital processing of signals transmitted and received through the antenna and RF circuitry.
  • the digital processing includes processing of the protocol stack of the RAN.
  • the memory stores programs executed by the processor, parameters related to the programs, and data related to the programs. All or part of the memory may be included within the processor.
  • the UE 100 is in the RRC connected state. Therefore, UE 100 has established an RRC connection with a cell (serving cell) managed by base station 200 . Note that the UE 100 may be in the RRC idle state or the RRC inactive state. Therefore, the UE 100 may camp on a cell managed by the base station 200 (serving cell).
  • step S101 the base station 200 transmits an RRC message including mitigation criterion information to the UE100.
  • UE 100 receives a radio resource control (RRC) message from base station 200 .
  • RRC radio resource control
  • the RRC message may be a system information block (for example, SIB2, etc.) transmitted by broadcast, or may be an RRC reconfiguration message transmitted individually to the UE 100, or the like.
  • SIB2 system information block
  • RRC reconfiguration message transmitted individually to the UE 100, or the like.
  • the relaxation criterion information indicates the relaxation criterion used for selecting whether or not to perform relaxation measurement (so-called RRM relaxation) for relaxing radio quality measurement for other cells different from the serving cell.
  • the relaxation measurement is a first relaxation measurement selected based on a first relaxation criterion included in the relaxation criterion and a second relaxation measurement selected based on a second relaxation criterion included in the relaxation criterion and measured more than the first relaxation measurement. and a second relaxation measurement in which is relaxed.
  • the first relaxation measurement may be the relaxation measurement introduced in Release 16 of the 3GPP Technical Specifications.
  • the second relaxation measurement may be the relaxation measurement introduced in Release 17 of the 3GPP Technical Specifications.
  • the relaxed criterion information includes first relaxed criterion information indicating the first relaxed criterion used for selecting the first relaxed measure, and second relaxed criterion information indicating the second relaxed criterion used for selecting the second relaxed measure. may contain.
  • the relaxation criterion information may be information for relaxing measurement requirements for cell reselection.
  • the first relaxation criterion information includes low mobility information (lowMobilityEvaluation) indicating a low mobility criterion (lowMobilityEvaluation criteria) for detecting that the UE 100 is in a low mobility state, and a cell for detecting that the UE 100 is not at the cell edge. and cell edge information (cellEdgeEvaluation) that indicates an edge criterion (cellEdgeEvaluation criteria).
  • low mobility criteria and the cell edge criteria may be included in the first mitigation criteria.
  • the low mobility information may include thresholds for determining whether low mobility criteria have been met.
  • the cell edge information may include thresholds for determining whether the cell edge criteria have been met.
  • the threshold may be, for example, at least one of S SearchDeltaP , S SearchThresholdP , and the like.
  • each of the low mobility information and the cell edge information may include other information (for example, information indicating a predetermined period) used for determining the corresponding criteria.
  • the second mitigation criterion information includes stationary information (stationary MobilityEvaluation) indicating a stationary criterion (stationary MobilityEvaluation criteria) for detecting that the UE 100 is in a stationary state, and stationary for detecting that the UE 100 is not at the cell edge while stationary. and stationary cell edge information (cellEdgeEvaluationWhileStationary) that indicates a medium cell edge criterion (cellEdgeEvaluationWhileStationary criteria).
  • the stationary criteria and the stationary cell edge criteria may be included in the second relaxed criteria.
  • the stillness information may include thresholds for determining whether the stillness criteria have been met.
  • the stationary cell edge information may include thresholds for determining whether the stationary cell edge criteria have been met.
  • the threshold may be, for example, at least one of S SearchDeltaP-Stationary , S SearchThresholdP2 , S SearchThresholdQ2 , and the like.
  • each of the stationary information and the stationary cell edge information may include other information (for example, information indicating a predetermined period) used for determination of the corresponding criteria.
  • the RRC message may include combination information (combineRelaxedMeasCondition) that permits the first relaxed measurement when both the low mobility criterion and the cell edge criterion are met.
  • combination information combinedRelaxedMeasCondition
  • UE 100 if there is no field containing the combination information, when one or both of the low mobility criteria and the cell edge criteria are satisfied, relaxed measurement is allowed (i.e., the measurement requirements are relaxed) can be determined.
  • control unit 140 of the UE 100 may ignore the cell edge information when the relaxation criterion information includes the cell edge information and the static information. Also, when the UE 100 is capable of making a determination (evaluation) based on the stationary criteria, the control unit 140 may ignore the field containing the cell-edge information and not make a determination based on the cell-edge criteria.
  • the explanation may proceed as if the control unit 140 of the UE 100 ignores the cell edge information when the mitigation criterion information includes the cell edge information and the stationary information.
  • step S102 the control unit 140 of the UE 100 determines whether or not the mitigation criteria are met, and selects whether or not to perform mitigation measurement.
  • the UE 100 measures at least one of received power and received quality as the radio quality of the serving cell.
  • the received power may be RSRP (Reference Signal Received Power).
  • the reception quality may be RSRQ (Reference Signal Received Quality).
  • UE 100 measures radio quality by measuring a reference signal (RS) from a serving cell.
  • RS reference signal
  • the control unit 140 of the UE 100 determines that the low mobility criterion is satisfied when the following formula is satisfied. ⁇ (Srxlev Ref - Srxlev) ⁇ S SearchDeltaP
  • Srxlev is the current Srxlev value of the serving cell.
  • Srxlev Ref is the reference Srxlev value of the serving cell.
  • the reference Srxlev value is determined (i) after selection or reselection of a new cell, (ii) when (Srxlev ⁇ Srxlev Ref ) > 0, or (iii) when the low mobility criterion is satisfied for a predetermined period of time (T SearchDeltaP ). If not, the UE 100 may set Srxlev Ref to the current Srxlev value of the serving cell.
  • Q rxlevmeas is the measured cell received power (RSRP).
  • Q rxlevmin is the minimum required received power.
  • Q rxlevminoffset is a predetermined offset that is constantly applied.
  • P compensation is a parameter related to uplink capability.
  • Qoffset temp is the offset applied temporarily.
  • the UE 100 determines that the cell edge criterion is satisfied when the following formula is satisfied. Srxlev > S SearchThresholdP , and Squal > S SearchThresholdQ , if S SearchThresholdQ is set
  • Squal is the current Squal value of the serving cell.
  • the Squal value is calculated by "Q qualmeas - (Q qualmin + Q qualminoffset ) - Qoffset temp" .
  • Q qualmeas is the measured cell reception quality (RSRQ).
  • Q qualmin is the minimum required quality level.
  • Q qualminoffset is a predetermined offset that is constantly applied.
  • the UE 100 determines that the stationary criterion is satisfied when the following formula is satisfied. ⁇ (Srxlev Ref - Srxlev) ⁇ S SearchDeltaP-Stationary
  • the reference Srxlev value is (i) after selection or reselection of a new cell, (ii) when (Srxlev - SrxlevRef) > 0 is satisfied, or (iii) when the low mobility criterion is a predetermined period (T SearchDeltaP-Stationary ) If not, the UE 100 may set SrxlevRef to the current Srxlev value of the serving cell.
  • the UE 100 determines that the stationary cell edge criterion is satisfied. - the stationary criterion is met for a predetermined period of time (TSearchDeltaP -Stationary ), ⁇ Srxlev > SSearchThresholdP2 , If the threshold S SearchThresholdQ2 is set, then Squal > S SearchThresholdQ2 ,
  • the control unit 140 of the UE 100 performs relaxation measurement to relax the measurement of radio quality for an intra-frequency cell (hereinafter, the intra-frequency NR cell will be described as an example) as another cell different from the serving cell.
  • the intra-frequency NR cell will be described as an example
  • the control unit 140 of the UE 100 when "Srxlev ⁇ S IntraSearchP " or "Squal ⁇ S IntraSearchQ " is satisfied, and when the relaxation criteria are set in the UE 100 as follows, the radio quality for intra frequency NR cells Select whether to perform relaxation measurements. Specifically, as shown in FIG. 6, the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the low mobility criterion in any of the following cases: You can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the low mobility criterion unless any of the following cases apply.
  • (a11) low mobility criteria are set to UE100 (i.e., UE100 receives low mobility information) and low mobility criteria are satisfied, or (a12) low mobility criteria and cell edge criteria are set to UE100 ( That is, when UE 100 receives low mobility information and cell edge information) and combination information is not set (i.e., combination information is not received), and only low mobility criteria are satisfied (a13) to UE 100
  • low mobility criteria and stationary criteria that is, UE 100 receives low mobility information and stationary information
  • only low mobility criteria are satisfied (a14) to UE 100 has low mobility criteria, stationary criteria and stationary cell edge If the criteria are set (i.e., the UE 100 receives low mobility information, stationary information and stationary cell edge information) and only the low mobility criteria are met
  • control unit 140 of the UE 100 may set the radio signal detection interval (T detect, NR_Intra ) wider than the detection interval in normal measurement as the first relaxation measurement, and the radio signal measurement interval (T measure, NR_Intra ) may be set wider than the measurement interval in normal measurement, and the radio quality evaluation interval (T evaluate, NR_Intra ) may be set wider than the evaluation interval in normal measurement.
  • the control unit 140 of the UE 100 may make each interval three times the interval in normal measurement.
  • the control unit 140 of the UE 100 selects whether or not to perform mitigation measurement for mitigating radio quality measurement for intra-frequency NR cells. Specifically, as shown in FIG. 7, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary reference in any of the following cases. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary reference if any of the following cases do not apply.
  • the control unit 140 of the UE 100 widens the radio signal detection interval (T detect, NR_Intra ) as the second relaxation measurement than the detection interval in the first relaxation measurement.
  • the radio signal measurement interval (T measure, NR_Intra ) may be set wider than the measurement interval in the first relaxation measurement, and the radio quality evaluation interval (T evaluate, NR_Intra ) may be set wider than the evaluation interval in the first relaxation measurement.
  • the control unit 140 of the UE 100 may make each interval J2 times as large as each interval in the first relaxation measurement.
  • J2 is the measurement relaxation factor applied to UEs meeting the stationaryMobilityEvaluation criteria.
  • K1 is the measurement relaxation factor applied to UEs meeting the low mobility criteria.
  • the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary cell edge criteria. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply.
  • the control unit 140 of the UE 100 uses the second relaxation measurement as the detection interval (T detect, NR_Intra ), the measurement interval (T measure, NR_Intra ), and the evaluation interval (T evaluate, NR_Intra ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period.
  • the UE 100 in the curses (a31) and (a32), the UE 100 is defined in Table 4.2.2.3-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, NR_Intra , T measure, NR_Intra and T evaluate, NR_Intra .
  • the control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cells when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 10, the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the low mobility criterion in any of the following cases. You can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the low mobility criterion unless any of the following cases apply.
  • a low mobility criterion is set in the UE 100 (that is, the UE 100 low mobility information), and if the low mobility criteria are satisfied, or (b12) low mobility criteria and cell edge criteria are set to the UE 100 (i.e., the UE 100 receives the low mobility information and cell edge information), And if the combination information is not set (that is, the combination information is not received), and only the low mobility criterion is satisfied (b13)
  • the low mobility criterion and the stationary criterion are set for the UE 100 (that is, if the UE 100 is low mobility information and stationary information), and only the low mobility criterion is satisfied (b14) the low mobility criterion, the stationary criterion and the stationary cell edge criterion are set to the UE 100 (that is, the UE 100 receives the low mobility information, the EMR (Electromagnetic Radiation) measurement timer (specifically, the T331 timer) on the inter-frequency NR carrier is not running, and (b11
  • control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
  • control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cells when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 11, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary reference in any of the following cases. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary reference unless any of the following cases apply.
  • the stationary criterion and the stationary cell edge criterion are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information), and the low mobility criterion (b23) low mobility criteria and stationary criteria are set to UE 100 (i.e., UE 100 is low mobility information and receive stationary information) and, regardless of whether the low mobility criteria are met, if the stationary criteria are met (b24) low mobility criteria, stationary criteria and stationary cell edge criteria are set in the UE 100 (That is, the UE 100 receives low mobility information, stationary information and stationary cell edge information), and regardless of whether the low mobility criteria are met, the stationary criteria are met without the stationary cell edge criteria being met. if it is
  • the control unit 140 of the UE 100 if "Srxlev ⁇ S nonIntraSearchP " or "Squal ⁇ S nonIntraSearchQ " is satisfied, the control unit 140 of the UE 100, as the second relaxation measurement , the radio signal detection interval (T detect, NR_Inter ) may be wider than the detection interval in the first relaxation measurement, and the radio signal measurement interval (T measure, NR_Inter ) may be wider than the measurement interval in the first relaxation measurement. and the radio quality evaluation interval (T evaluate, NR_Inter ) may be wider than the evaluation interval in the first relaxation measurement. As shown in FIG.
  • the control unit 140 of the UE 100 determines T detect, NR_Inter , T measure , NR_Inter , T evaluate, NR_Inter , the requirements specified in class 4.2.2.4 (i.e., Measurements of inter-frequency NR cells) of the 3GPP technical specification (specifically, TS38.133) may apply.
  • control unit 140 of the UE 100 when "Srxlev>S nonIntraSearchP " and “Squal>S nonIntraSearchQ " are satisfied and "highPriorityMeasRelax" is set in the UE 100, at least a predetermined period (K2* Thigher_priority_search ) High priority inter-frequency is searched every time. K2 is 60. T higher_priority_search is (60*N layers ) seconds. N layers is the total number of high priority NR and E-UTRA carrier frequencies broadcast in system information.
  • the control unit 140 of the UE 100 searches for a high-priority inter-frequency at least every predetermined period (T higher_priority_search ).
  • the control unit 140 of the UE 100 selects to perform the second relaxation measurement for the inter-frequency NR cell as the measurement based on the stationary cell edge criteria. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply.
  • the stationary reference and the stationary cell edge reference are set in the UE 100 (i.e. , UE 100 is receiving stationary information and stationary cell edge information), and when both criteria are satisfied, a predetermined time has elapsed since the last measurement for cell reselection is performed If not, or (b32) low mobility criteria and cell edge criteria are set in the UE 100 (i.e., the UE 100 receives low mobility information and cell edge information) and both criteria are met And, the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information) and both criteria are satisfied , if the time has not passed since the last measurement for cell reselection
  • the control unit 140 of the UE 100 uses the second relaxation measurement as the detection interval (T detect, NR_Inter ), the measurement interval (T measure, NR_Inter ), and the evaluation interval (T evaluate, NR_Inter ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period. As shown in FIG. 14, in the curses (b31) and (b32), the UE 100 is defined in Table 4.2.2.4-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, NR_Intra , T measure, NR_Intra and T evaluate, NR_Intra .
  • the control unit 140 of the UE 100 uses an inter-radio access technology (RAT) cell (hereinafter referred to as an inter-RAT E-UTRAN (Evolved Universal Terrestrial Radio Access Network) cell as an example of another cell different from the serving cell.
  • RAT inter-radio access technology
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • the control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement to relax the radio quality measurement for the inter-RATE-UTRAN cell when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 15, the control unit 140 of the UE 100 performs the first mitigation measurement on the inter-RATE-UTRAN cell as a measurement based on the low mobility criteria in any of the following cases: The control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-RATE E-UTRAN cell as a measurement based on the low mobility criteria unless any of the following cases apply: .
  • the timer for EMR measurement in the inter-RAT E-UTRAN (specifically, the T331 timer) is not running, and (c11) the low mobility criterion is set in the UE 100 (that is, the UE 100 receives the low mobility information ), and the low mobility criterion is satisfied, or (c12) the low mobility criterion and the cell edge criterion are set in the UE 100 (that is, the UE 100 receives the low mobility information and the cell edge information), and the combination information is not set (i.e., the combination information is not received) and only the low mobility criterion is satisfied (c13) the low mobility criterion and the stationary criterion are set for the UE 100 (i.e., the UE 100 receives the low mobility information and the stationary information), and only the low mobility criterion is satisfied (c14) The low mobility criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100
  • control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
  • control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement to relax the radio quality measurement for the inter-RATE-UTRAN cell when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 16, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary standard in any of the following cases: You may choose. On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the static criteria unless any of the following cases apply.
  • the control unit 140 of the UE 100 when "Srxlev ⁇ S nonIntraSearchP " or "Squal ⁇ S nonIntraSearchQ " is satisfied, the control unit 140 of the UE 100 performs the second relaxation measurement.
  • the radio signal detection interval (T detect, EUTRAN ) may be wider than the detection interval in the first relaxation measurement
  • the radio signal measurement interval (T measure, EUTRAN ) may be wider than the measurement interval in the first relaxation measurement.
  • the radio quality evaluation interval (T evaluate, EUTRAN ) may be wider than the evaluation interval in the first relaxation measurement.
  • the control unit 140 of the UE 100 determines T detect, EUTRAN , T measure , EUTRAN , T evaluate, and EUTRAN are specified in class 4.2.2.5 (i.e., Measurements of inter-RAT E-UTRAN cells) of the 3GPP technical specification (specifically, TS38.133). requirements may apply.
  • control unit 140 of the UE 100 when "Srxlev>S nonIntraSearchP " and “Squal>S nonIntraSearchQ " are satisfied and "highPriorityMeasRelax" is set in the UE 100, at least a predetermined period (K2* Thigher_priority_search ) High priority E-UTRA inter-RAT frequencies are searched every time. K2 is 60. T higher_priority_search is (60*N layers ) seconds. N layers is the total number of high priority NR and E-UTRA carrier frequencies broadcast in system information.
  • the control unit 140 of the UE 100 searches for a high-priority E-UTRA inter-RAT frequency at least every predetermined period (T higher_priority_search ).
  • the control unit 140 of the UE 100 performs the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary cell edge criteria. You may choose. On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply: .
  • the stationary reference and stationary cell edge reference are set in the UE 100 (That is, the UE 100 is receiving stationary information and stationary cell edge information), and when both criteria are satisfied, a predetermined time since the last measurement for cell reselection has not elapsed, or (c32) low mobility criteria and cell edge criteria are set in UE 100 (i.e., UE 100 receives low mobility information and cell edge information) and both criteria are met
  • the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information) and both criteria are satisfied and the specified time has not elapsed since the last measurement for cell reselection
  • the control unit 140 of the UE 100 uses, as the second relaxation measurement, a detection interval (T detect, EUTRAN ), a measurement interval (T measure, EUTRAN ), and an evaluation interval (T evaluate, EUTRAN ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period. As shown in FIG. 19, in the curses (c31) and (c32), the UE 100 is defined in Table 4.2.2.5-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, EUTRAN , T measure, EUTRAN and T evaluate, EUTRAN .
  • the UE 100 selects whether or not to perform relaxation measurement based on the relaxation criteria. Even if the first relaxation criterion and the second relaxation criterion are set in the UE 100, the control unit 140 performs the first relaxation measurement when only the first relaxation criterion is satisfied. select.
  • step S103 the control unit 140 of the UE 100 performs relaxation measurement.
  • the control unit 140 of the UE 100 selects to perform the first relaxation measurement, it performs the first relaxation measurement.
  • the control unit 140 of the UE 100 selects to perform the second relaxation measurement, it performs the second relaxation measurement.
  • the control unit 140 performs the first mitigation measurement when only the first mitigation criterion is satisfied.
  • the UE 100 can appropriately perform the relaxation measurement even when the second relaxation measurement is introduced. By executing the first relaxation measurement, the UE 100 can further reduce power consumption and improve battery life.
  • the first mitigation criterion may include a low mobility criterion for detecting that the UE 100 is in a low mobility state. This allows the UE 100 to appropriately perform the mitigation measurement when the UE 100 is in the low mobility state even when the second mitigation criterion is not satisfied. By executing the first relaxation measurement, the UE 100 can further reduce power consumption and improve battery life.
  • the control unit 140 may ignore the cell edge information. For example, when the UE 100 is in a stationary state (introduced in Release 16) rather than the cell edge criteria (introduced in Release 16) in the case where the determination operation is performed based on the stationary cell edge criteria (introduced in Release 17), the UE 100 , the process of managing cell edge information can be omitted, and the processing load of the UE 100 can be reduced.
  • the mitigation criterion information may include low mobility information and stationary information.
  • Control unit 140 may choose to perform the first mitigation measurement if only the low mobility criterion is met. This allows the UE 100 to appropriately perform the relaxation measurement even when the stationary reference-based second relaxation measurement is introduced.
  • the relaxation criterion information may further include stationary cell edge information. This allows the UE 100 to appropriately perform the relaxation measurement even when the second relaxation measurement based on the stationary cell edge is introduced.
  • the control unit 140 determines that when the stationary criterion is satisfied, at least one of the cell-edge criterion and the low-mobility criterion is Even if satisfied, perform a second relaxation measurement.
  • the stationary criterion is satisfied, by selecting the execution of the second relaxation measurement in which the measurement is more relaxed than the first relaxation measurement, the UE 100 can appropriately perform the relaxation measurement, saving power and It is possible to further improve the battery life.
  • control unit 140 may ignore the cell edge information when the mitigation criterion information includes the cell edge information and the stationary information.
  • the UE 100 can omit the process of managing the cell edge information or omit the determination based on the cell edge criterion, thereby reducing the processing load of the UE 100.
  • the mitigation criterion information includes low mobility information indicating a low mobility criterion for detecting that the user equipment is in a low mobility state as a first mitigation criterion and indicating that the user equipment is in a stationary state as a second mitigation criterion. and static information that indicates criteria for detection.
  • Control unit 140 may choose to perform the second mitigation measurement if the stationary criterion is met, whether or not the low mobility criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the low mobility criterion can be omitted, and the processing load of the UE 100 can be reduced.
  • the relaxation criterion information may further include resting cell edge information indicating a resting cell edge criterion for detecting that the user equipment is not at the cell edge while resting as a second relaxation criterion.
  • the control unit 140 widens the radio signal detection interval as the second relaxation measurement than the detection interval in the first relaxation measurement, and increases the radio signal measurement interval. may be set wider than the measurement interval in the first relaxation measurement, and the radio quality evaluation interval may be set wider than the evaluation interval in the first relaxation measurement.
  • the UE 100 does not omit the execution of the measurement as the second relaxation measurement when the stationary cell edge criterion is not satisfied, and performs measurements at relatively wide intervals.
  • the relaxation measurement can be properly performed while further saving power and improving battery life.
  • the relaxation criterion information may further include stationary cell edge information. If both the stationary criterion and the stationary cell edge criterion are satisfied and a predetermined time has not passed since the last measurement, the control unit 140 performs the measurement as a second relaxation measurement. Control not to execute may be performed. Accordingly, since the UE 100 is in a stationary state and is not located at the cell edge, it is not assumed that the radio quality will suddenly deteriorate in a short period of time. Therefore, in such a case, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life.
  • the relaxation criterion information may further include stationary cell edge information.
  • Control unit 140 when both the low mobility criterion and the cell edge criterion are satisfied, and both the stationary criterion and the stationary cell edge criterion are satisfied, a predetermined time after the last measurement is performed has not elapsed, the second relaxation measurement may be controlled so as not to perform the measurement. In such a case, since it is not assumed that the radio quality will suddenly deteriorate in a short time, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life.
  • the relaxation criterion information may further include stationary cell edge information.
  • Control unit 140 performs the measurement last when both the stationary and stationary cell edge criteria are met, regardless of whether the low mobility criteria and the cell edge criteria are met. If the predetermined time has not elapsed since , the second relaxation measurement may be controlled so as not to perform the measurement. In such a case, since it is not assumed that the radio quality will suddenly deteriorate in a short time, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life. Furthermore, the UE 100 prioritizes the determination based on the stationary criteria and the stationary cell edge criteria over the determination based on the low mobility criteria and the cell edge criteria, so that both the stationary criteria and the stationary cell edge criteria are satisfied. If so, the decision based on the low mobility criterion and the cell edge criterion can be omitted. As a result, power saving and battery life can be further improved.
  • control unit 140 of the UE 100 selects whether or not to perform relaxation measurement for relaxing radio quality measurement for intra-frequency NR cells as other cells different from the serving cell.
  • the control unit 140 of the UE 100 in addition to the above (a11) to (a14), in any of the following cases, as a measurement based on the low mobility criteria, for intra-frequency NR cells You may choose to perform a first relaxation measurement.
  • the control unit 140 of the UE 100 does not correspond to (a11) to (a16) including any of the following cases, as a measurement based on the low mobility standard, perform the first relaxation measurement for the intra-frequency NR cell choose not to.
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e. , combination information is not received), and only the low mobility criterion is satisfied (a16)
  • the low mobility criterion, the cell edge criterion, the stationary criterion, and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 has the low mobility information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
  • the control unit 140 of the UE 100 may select to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the cell edge criteria. .
  • the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the cell edge criteria unless any of the following cases apply.
  • the low mobility criteria and the cell edge criteria are set in the UE 100 (that is, the UE 100 receives the cell edge information) and the cell edge criteria are satisfied, or (a42) the low mobility criteria and the cell edge criteria are set in the UE 100 ( That is, when the UE 100 receives low mobility information and cell edge information) and the combination information is not set (that is, the combination information is not received), and only the cell edge criteria are satisfied (a43) to the UE 100
  • Low mobility criteria, cell edge criteria, and stationary criteria are set (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e., receiving combination information not), and only the cell edge criteria are satisfied (a44)
  • the low mobility criteria, the cell edge criteria, the stationary criteria and the stationary cell edge criteria are set for the UE 100 (that is, the UE 100 receives the low mobility information, the cell edge criteria , stationary information and stationary cell edge information) and only the cell edge criteria are satisfied
  • control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
  • the control unit 140 of the UE 100 in addition to the cases of (a21) to (a24) described above, in any of the following cases, as a measurement based on the stationary reference, an intra frequency NR cell You may choose to perform a second relaxation measurement on .
  • the control unit 140 of the UE 100 does not correspond to (a21) to (a26) including any of the following cases, as a measurement based on the stationary reference, the second relaxation measurement for the intra-frequency NR cell is not performed. choose to
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (a26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
  • control unit 140 of the UE 100 selects whether or not to perform relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cell as another cell different from the serving cell.
  • the control unit 140 of the UE 100 in addition to the cases of (b11) to (b14) described above, in any of the following cases, as a measurement based on the low mobility criteria, for inter-frequency NR cells You may choose to perform a first relaxation measurement.
  • the control unit 140 of the UE 100 does not correspond to (b11) to (b16) including any of the following, as a measurement based on the low mobility criteria, do not perform the first relaxation measurement for the inter-frequency NR cell to select.
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , combination information is not received) and only the low mobility criterion is satisfied (b16)
  • the low mobility criterion, the cell edge criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 is information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
  • the control unit 140 of the UE 100 may select to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the cell edge criteria. .
  • the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the cell edge criteria unless any of the following cases apply.
  • the low mobility criteria and the cell edge criteria are set in the UE 100 (that is, the UE 100 receives the cell edge information) and the cell edge criteria are satisfied, or (b42) the low mobility criteria and the cell edge criteria are set in the UE 100 ( That is, when the UE 100 receives low mobility information and cell edge information) and the combination information is not set (that is, the combination information is not received), and only the cell edge criteria are satisfied (b43) to the UE 100
  • Low mobility criteria, cell edge criteria, and stationary criteria are set (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e., receiving combination information not), and only the cell edge criteria are satisfied (b44)
  • the low mobility criteria, the cell edge criteria, the stationary criteria and the stationary cell edge criteria are set for the UE 100 (that is, the UE 100 has the low mobility information, the cell edge criteria , stationary information and stationary cell edge information) and only the cell edge criteria are satisfied
  • control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
  • the control unit 140 of the UE 100 in addition to the cases of (b21) to (b24) described above, in any of the following cases, as a measurement based on the stationary reference, inter-frequency NR cell You may choose to perform a second relaxation measurement on .
  • the control unit 140 of the UE 100 does not correspond to (b21) to (b26) including any of the following, as a measurement based on the stationary reference, it is determined not to perform the second relaxation measurement for the inter-frequency NR cell select.
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (b26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
  • control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-RATE-UTRAN cell as another cell different from the serving cell.
  • the control unit 140 of the UE 100 performs inter-RATE-UTRAN as a measurement based on the low mobility criteria in any of the following cases: It may be chosen to perform a first relaxation measurement on the cell.
  • the control unit 140 of the UE 100 performs the first mitigation measurement for the inter-RATE-UTRAN cell as a measurement based on the low mobility criteria unless (c11) to (c16) including any of the following apply. choose not to.
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , combination information is not received) and only the low mobility criterion is satisfied (c16)
  • the low mobility criterion, the cell edge criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 is set to the low mobility information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
  • the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the inter-RATE E-UTRAN cell as the measurement based on the cell edge criteria in any of the following cases: you can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement for the inter-RATE-UTRAN cell as the measurement based on the cell edge criteria unless any of the following cases apply.
  • control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
  • the control unit 140 of the UE 100 performs inter-RAT E- It may be chosen to perform a second relaxation measurement for the UTRAN cell.
  • the control unit 140 of the UE 100 does not perform the second relaxation measurement on the inter-RATE-UTRAN cell as a measurement based on the stationary standard unless (c21) to (c26) including any of the following apply. choose to
  • Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (c26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
  • the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information.
  • Control unit 140 may choose to perform the first mitigation measurement if only the low mobility criterion is met. Thereby, even when the UE 100 does not ignore the cell edge criterion and the second mitigation criterion is set, the UE 100 can appropriately perform the first mitigation measurement based on the low mobility criterion.
  • the relaxation criterion information may further include resting cell edge information indicating the resting cell edge criterion. This allows the UE 100 to appropriately perform the first relaxed measurement based on the low mobility criterion even when the stationary cell edge criterion is set as the second relaxed criterion in the UE 100 .
  • the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information. Controller 140 may choose to perform the first relaxation measurement if only the cell edge criteria are met. As a result, even when the UE 100 does not ignore the cell edge criteria and the second relaxation criteria are set, the UE 100 can appropriately perform the first relaxation measurement based on the cell edge criteria.
  • the relaxation criterion information may further include stationary cell edge information. This allows the UE 100 to appropriately perform the first relaxation measurement based on the cell edge criterion even when the stationary cell edge criterion is set as the second mitigation criterion in the UE 100 .
  • the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information.
  • Control unit 140 may choose to perform the second mitigation measurement if the stationary criterion is met, whether or not the low mobility criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the low mobility criterion can be omitted, and the processing load of the UE 100 can be reduced.
  • the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information.
  • the controller may choose to perform the second relaxation measurement if the quiescence criterion is met, whether or not the cell edge criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the cell edge criterion can be omitted, and the processing load of the UE 100 can be reduced.
  • the relaxation criterion information may further include stationary cell edge information.
  • the UE 100 can omit the determination based on the first mitigation criteria when the stationary criteria are satisfied, and the processing load of the UE 100 can be reduced.
  • the UE 100 may perform relaxation measurements when selecting to perform relaxation measurements. Alternatively, the UE 100 may not actually perform the relaxation measurement even if the relaxation measurement is possible by satisfying the relaxation criterion. For example, the UE 100 in the RRC connected state may perform relaxation measurement when permission for relaxation measurement is obtained from the base station 200 .
  • the UE 100 may transmit the measurement result to the base station 200 when in the RRC connected state. After transmitting the measurement result, the UE 100 may perform the relaxation measurement based on receiving from the base station 200 a relaxation measurement instruction for causing the UE 100 to perform the relaxation measurement. Also, the UE 100 may transmit the measurement result based on the relaxation measurement to the base station 200 when in the RRC connected state. After transmitting the measurement result, the UE 100 may stop the relaxation measurement and perform the normal measurement based on receiving from the base station 200 a normal measurement instruction for not causing the UE 100 to perform the relaxation measurement.
  • the base station 200 may include multiple units.
  • the plurality of units may include a first unit hosting a higher layer included in the protocol stack and a second unit hosting a lower layer included in the protocol stack.
  • the upper layers may include the RRC layer, the SDAP layer and the PDCP layer, and the lower layers may include the RLC layer, the MAC layer and the PHY layer.
  • the first unit may be a CU (central unit), and the second unit may be a DU (Distributed Unit).
  • the plurality of units may include a third unit that performs processing below the PHY layer.
  • the second unit may perform processing above the PHY layer.
  • the third unit may be an RU (Radio Unit).
  • Base station 200 may be one of a plurality of units, and may be connected to other units of the plurality of units. Also, the base station 200 may be an IAB (Integrated Access and Backhaul) donor or an IAB node.
  • IAB Integrated Access and Backhaul
  • the mobile communication system 1 based on NR has been described as an example.
  • the mobile communication system 1 is not limited to this example.
  • the mobile communication system 1 may be a TS-compliant system of either LTE or another generation system (eg, 6th generation) of the 3GPP standard.
  • Base station 200 may be an eNB that provides E-UTRA user plane and control plane protocol termination towards UE 100 in LTE.
  • the mobile communication system 1 may be a system conforming to a TS of a standard other than the 3GPP standard.
  • each operation flow described above is not limited to being implemented independently, but can be implemented by combining two or more operation flows. For example, some steps of one operation flow may be added to another operation flow, or some steps of one operation flow may be replaced with some steps of another operation flow.
  • a program that causes a computer to execute each process performed by the UE 100 or the base station 200 may be provided.
  • the program may be recorded on a computer readable medium.
  • a computer readable medium allows the installation of the program on the computer.
  • the computer-readable medium on which the program is recorded may be a non-transitory recording medium.
  • the non-transitory recording medium is not particularly limited, but may be, for example, a recording medium such as CD-ROM (Compact Disk Read Only Memory) or DVD-ROM (Digital Versatile Disc Read Only Memory). good.
  • circuits that execute each process performed by the UE 100 or the base station 200 may be integrated, and at least a part of the UE 100 or the base station 200 may be configured as a semiconductor integrated circuit (chipset, SoC).
  • “transmit” may mean performing at least one layer of processing in the protocol stack used for transmission, or physically transmitting the signal wirelessly or by wire. It may mean sending to Alternatively, “transmitting” may mean a combination of performing the at least one layer of processing and physically transmitting the signal wirelessly or by wire.
  • “receive” may mean performing processing of at least one layer in the protocol stack used for reception, or physically receiving a signal wirelessly or by wire. may mean that Alternatively, “receiving” may mean a combination of performing the at least one layer of processing and physically receiving the signal wirelessly or by wire.
  • “obtain/acquire” may mean obtaining information among stored information, and may mean obtaining information among information received from other nodes.
  • references to "based on” and “depending on/in response to” are used unless otherwise specified. does not mean The phrase “based on” means both “based only on” and “based at least in part on.” Similarly, the phrase “depending on” means both “only depending on” and “at least partially depending on.” Similarly, “include” and “comprise” are not meant to include only the recited items, and may include only the recited items or in addition to the recited items. Means that it may contain further items. Similarly, in the present disclosure, “or” does not mean exclusive OR, but means logical OR. Furthermore, any references to elements using the "first,” “second,” etc.
  • a communication device comprising: a control unit that performs measurement of frequency cells.
  • Appendix 2 The communication device according to appendix 1, wherein the control unit applies a value greater than 3 as the measurement relaxation factor.
  • Appendix 3 The communication device according to appendix 1 or 2, wherein the control unit performs, as the measurement, a second measurement with a wider measurement interval than a first measurement with a predetermined measurement interval.
  • (Appendix 4) The communication device according to any one of attachments 1 to 3, wherein the receiving unit receives from the base station a system information block including information indicating the stationary reference and information indicating the stationary cell edge reference.
  • the control unit controls not to perform the measurement at a predetermined measurement interval when it corresponds to either the first case or the second case
  • the first case is when the stationary criterion and the stationary cell edge criterion are set and both the stationary criterion and the stationary cell edge criterion are satisfied, and a measurement for cell reselection is performed.
  • the second case is a case where a low mobility criterion and a cell edge criterion are set and both the low mobility criterion and the cell edge criterion are satisfied, and the stationary criterion and the stationary cell 5.
  • the communication device according to any one of appendices 1 to 4, wherein an edge criterion is set and the stationary criterion and the stationary cell edge criterion are satisfied.
  • a base station comprising a transmitting unit that transmits information indicating the stationary reference and information indicating the stationary cell edge reference to a communication device that performs measurement.
  • a communication method performed by a communication device comprising: receiving information from a base station indicating a stationary criterion and information indicating a stationary cell edge criterion; If the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is met without the stationary cell edge criterion being met, intra based on the measurement interval with a measurement relaxation factor applied. and performing frequency cell measurements.

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Abstract

A communication device (100) comprises: a reception unit (121) that receives, from a base station (200), information indicating a stationary criterion and information indicating a stationary cell edge criterion; and a control unit (140) that, if the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is satisfied but the stationary cell edge criterion is not satisfied, executes measurement of an intra-frequency cell on the basis of a measurement interval to which a measurement relaxation factor has been applied.

Description

通信装置、基地局及び通信制御方法Communication device, base station and communication control method 関連出願への相互参照Cross-references to related applications
　本出願は、２０２２年１月７日に出願された特許出願番号２０２２－００１９４５号に基づくものであって、その優先権の利益を主張するものであり、その特許出願のすべての内容が、参照により本明細書に組み入れられる。 This application is based on and claims the benefit of priority from patent application number 2022-001945, filed January 7, 2022, the entire contents of which are incorporated by reference. incorporated herein by.
　本開示は、移動通信システムで用いる通信装置、基地局及び通信制御方法に関する。 The present disclosure relates to communication devices, base stations, and communication control methods used in mobile communication systems.
　移動通信システムの標準化プロジェクトである３ＧＰＰ（登録商標。以下同じ）（３ｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ）では、サービングセルと異なる他セルに対する無線品質の測定を緩和する緩和測定（いわゆる、ＲＲＭ（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｍａｎａｇｅｍｅｎｔ）　ｒｅｌａｘａｔｉｏｎ）が導入されている（非特許文献１参照）。通信装置は、サービングセルと異なる他セルに対する無線品質の測定を緩和する緩和測定（以下、第１緩和測定と適宜称する）を実行するか否かの選択に用いられる緩和基準に基づいて、緩和測定を実行するか否かを選択する。これにより、通信装置は、他セルに対する無線品質の測定を頻繁に実行する必要がなくなり、省電力化及びバッテリー寿命向上を図ることができる。 In the 3GPP (registered trademark; hereinafter the same) (3rd Generation Partnership Project), which is a standardization project for mobile communication systems, relaxation measurement (so-called RRM (Radio Resource Management) relaxation) that relaxes the measurement of radio quality for other cells different from the serving cell has been introduced (see Non-Patent Document 1). The communication device performs relaxation measurement based on the relaxation criterion used for selecting whether or not to perform relaxation measurement (hereinafter referred to as first relaxation measurement as appropriate) that relaxes measurement of radio quality for other cells different from the serving cell. Select whether to execute or not. This eliminates the need for the communication device to frequently measure the radio quality of other cells, thereby saving power and improving battery life.
　近年、３ＧＰＰにおいて、上述の緩和基準と異なる緩和基準に基づいて他セルに対する無線品質の測定を上述の第１緩和測定よりもさらに緩和する緩和測定（以下、第２緩和測定と適宜称する）を新たに導入することが合意されている（非特許文献１参照）。これにより、第２緩和測定は、第１緩和測定よりも測定回数を削減でき、省電力化及びバッテリー寿命向上を更に図ることができる。 In recent years, 3GPP has newly introduced a relaxation measurement (hereinafter referred to as a second relaxation measurement) that further relaxes the measurement of radio quality for other cells based on a relaxation criterion different from the above-mentioned relaxation criterion, compared to the first relaxation measurement described above. (see Non-Patent Document 1). As a result, the second relaxation measurement can reduce the number of measurements compared to the first relaxation measurement, and power saving and battery life can be further improved.
　第１の態様に係る通信装置は、静止基準を示す情報及び静止中セル端基準を示す情報を基地局から受信する受信部と、前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する制御部と、を備える。 A communication device according to a first aspect includes a receiving unit that receives information indicating a stationary reference and information indicating a stationary cell edge reference from a base station, and the stationary reference and the stationary cell edge reference are set, and a controller for performing intra-frequency cell measurements based on a measurement interval to which a measurement relaxation factor is applied when the stationary cell edge criterion is not met and the stationary criterion is met.
　第２の態様に係る基地局は、静止基準及び静止中セル端基準が設定されておりかつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合に測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する通信装置へ、前記静止基準を示す情報及び前記静止中セル端基準を示す情報を送信する送信部を備える。 The base station according to the second aspect applies a measurement relaxation factor when a stationary criterion and a stationary cell edge criterion are set and the stationary criterion is satisfied without satisfying the stationary cell edge criterion. a transmission unit configured to transmit the information indicating the stationary reference and the information indicating the stationary cell edge reference to a communication apparatus that performs intra-frequency cell measurement based on the measurement interval.
　第３の態様に係る通信方法は、通信装置で実行される通信方法である。前記通信方法は、静止基準を示す情報及び静止中セル端基準を示す情報を基地局から受信するステップと、前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行するステップと、を備える。 A communication method according to the third aspect is a communication method executed by a communication device. The communication method includes the steps of: receiving information indicating a stationary reference and information indicating a stationary cell edge reference from a base station; performing measurements of intra-frequency cells based on a measurement interval with a measurement relaxation factor applied if said stationary criterion is met while the criterion is not met.
　本開示についての目的、特徴、及び利点等は、添付の図面を参照しながら下記の詳細な記述により、より明確になる。
図１は、実施形態に係る移動通信システムの構成を示す図である。 図２は、実施形態に係るプロトコルスタックの構成例を示す図である。 図３は、実施形態に係るＵＥの構成を示す図である。 図４は、実施形態に係る基地局の構成を示す図である。 図５は、実施形態に係る移動通信システムの第１動作例及び第２動作例を説明するためのシーケンス図である。 図６は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１）である。 図７は、実施形態に係る移動通信システムの第１動作例を説明するための図（その２）である。 図８は、実施形態に係る移動通信システムの第１動作例を説明するための図（その３）である。 図９は、実施形態に係る移動通信システムの第１動作例を説明するための図（その４）である。 図１０は、実施形態に係る移動通信システムの第１動作例を説明するための図（その５）である。 図１１は、実施形態に係る移動通信システムの第１動作例を説明するための図（その６）である。 図１２は、実施形態に係る移動通信システムの第１動作例を説明するための図（その７）である。 図１３は、実施形態に係る移動通信システムの第１動作例を説明するための図（その８）である。 図１４は、実施形態に係る移動通信システムの第１動作例を説明するための図（その９）である。 図１５は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１０）である。 図１６は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１１）である。 図１７は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１２）である。 図１８は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１３）である。 図１９は、実施形態に係る移動通信システムの第１動作例を説明するための図（その１４）である。 図２０は、実施形態に係る移動通信システムの第２動作例を説明するための図（その１）である。 図２１は、実施形態に係る移動通信システムの第２動作例を説明するための図（その２）である。 図２２は、実施形態に係る移動通信システムの第２動作例を説明するための図（その３）である。 図２３は、実施形態に係る移動通信システムの第２動作例を説明するための図（その４）である。 図２４は、実施形態に係る移動通信システムの第２動作例を説明するための図（その５）である。 図２５は、実施形態に係る移動通信システムの第２動作例を説明するための図（その６）である。 図２６は、実施形態に係る移動通信システムの第２動作例を説明するための図（その７）である。 図２７は、実施形態に係る移動通信システムの第２動作例を説明するための図（その８）である。 図２８は、実施形態に係る移動通信システムの第２動作例を説明するための図（その９）である。 Objects, features, advantages, etc. of the present disclosure will become clearer from the following detailed description with reference to the accompanying drawings.
FIG. 1 is a diagram showing the configuration of a mobile communication system according to an embodiment. FIG. 2 is a diagram illustrating a configuration example of a protocol stack according to the embodiment; FIG. 3 is a diagram illustrating the configuration of a UE according to the embodiment; FIG. 4 is a diagram showing the configuration of a base station according to the embodiment. FIG. 5 is a sequence diagram for explaining a first operation example and a second operation example of the mobile communication system according to the embodiment. FIG. 6 is a diagram (part 1) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 7 is a diagram (part 2) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 8 is a diagram (part 3) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 9 is a diagram (part 4) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 10 is a diagram (No. 5) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 11 is a diagram (No. 6) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 12 is a diagram (No. 7) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 13 is a diagram (No. 8) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 14 is a diagram (9) for explaining the first operation example of the mobile communication system according to the embodiment. FIG. 15 is a diagram (10) for explaining the first operation example of the mobile communication system according to the embodiment; FIG. 16 is a diagram (No. 11) for explaining the first operation example of the mobile communication system according to the embodiment. 17 is a diagram (part 12) for explaining the first operation example of the mobile communication system according to the embodiment; FIG. FIG. 18 is a diagram (13) for explaining the first operation example of the mobile communication system according to the embodiment. 19 is a diagram (part 14) for explaining the first operation example of the mobile communication system according to the embodiment; FIG. FIG. 20 is a diagram (part 1) for explaining a second operation example of the mobile communication system according to the embodiment; FIG. 21 is a diagram (part 2) for explaining a second operation example of the mobile communication system according to the embodiment; FIG. 22 is a diagram (part 3) for explaining the second operation example of the mobile communication system according to the embodiment; FIG. 23 is a diagram (part 4) for explaining the second operation example of the mobile communication system according to the embodiment; FIG. 24 is a diagram (No. 5) for explaining the second operation example of the mobile communication system according to the embodiment. FIG. 25 is a diagram (No. 6) for explaining the second operation example of the mobile communication system according to the embodiment. FIG. 26 is a diagram (No. 7) for explaining the second operation example of the mobile communication system according to the embodiment. FIG. 27 is a diagram (No. 8) for explaining the second operation example of the mobile communication system according to the embodiment. FIG. 28 is a diagram (part 9) for explaining the second operation example of the mobile communication system according to the embodiment;
　図面を参照しながら、実施形態に係る移動通信システムについて説明する。図面の記載において、同一又は類似の部分には同一又は類似の符号を付している。 A mobile communication system according to an embodiment will be described with reference to the drawings. In the description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.
　しかしながら、現状の３ＧＰＰ技術仕様書には、第１緩和測定の選択に用いられる第１緩和基準と、第２緩和測定の選択に用いられる第２緩和基準との両方が通信装置に設定された場合に、第１緩和測定と第２緩和測定とをどのように用いて測定を緩和するのかが規定されていない。従って、第２緩和測定が導入された場合に、通信装置が緩和測定を適切に実行できない懸念がある。そこで、本開示は、緩和測定を適切に実行可能とする通信装置、基地局及び通信方法を提供することを目的の一つとする。 However, in the current 3GPP technical specifications, when both the first relaxation criterion used for selecting the first relaxation measurement and the second relaxation criterion used for selecting the second relaxation measurement are set in the communication device does not specify how the first relaxation measurement and the second relaxation measurement are used to relax the measurement. Therefore, when the second relaxation measurement is introduced, there is a concern that the communication device cannot properly perform the relaxation measurement. Accordingly, one object of the present disclosure is to provide a communication device, a base station, and a communication method that enable appropriate execution of mitigation measurement.
　（システム構成）
　まず、図１を参照して、本実施形態に係る移動通信システム１の構成について説明する。移動通信システム１は、例えば、３ＧＰＰの技術仕様（Ｔｅｃｈｎｉｃａｌ　Ｓｐｅｃｉｆｉｃａｔｉｏｎ：ＴＳ）に準拠したシステムである。以下において、移動通信システム１として、３ＧＰＰ規格の第５世代システム（５ｔｈ　Ｇｅｎｅｒａｔｉｏｎ　Ｓｙｓｔｅｍ：５ＧＳ）、すなわち、ＮＲ（ＮＲ（Ｎｅｗ　Ｒａｄｉｏ）無線アクセス）に基づく移動通信システムを例に挙げて説明する。 (System configuration)
First, the configuration of a mobile communication system 1 according to this embodiment will be described with reference to FIG. The mobile communication system 1 is, for example, a system conforming to 3GPP Technical Specifications (TS). Hereinafter, as the mobile communication system 1, a mobile communication system based on the 3GPP standard 5th Generation System (5GS), that is, NR (NR (New Radio) Radio Access) will be described as an example.
　移動通信システム１は、ネットワーク１０と、ネットワーク１０と通信するユーザ装置（Ｕｓｅｒ　Ｅｑｕｉｐｍｅｎｔ：ＵＥ）１００とを有する。ネットワーク１０は、５Ｇの無線アクセスネットワークであるＮＧ－ＲＡＮ（Ｎｅｘｔ　Ｇｅｎｅｒａｔｉｏｎ　Ｒａｄｉｏ　Ａｃｃｅｓｓ　Ｎｅｔｗｏｒｋ）２０と、５Ｇのコアネットワークである５ＧＣ（５Ｇ　Ｃｏｒｅ　Ｎｅｔｗｏｒｋ）３０とを含む。 The mobile communication system 1 has a network 10 and user equipment (UE) 100 communicating with the network 10 . The network 10 includes an NG-RAN (Next Generation Radio Access Network) 20, which is a 5G radio access network, and a 5GC (5G Core Network) 30, which is a 5G core network.
　ＵＥ１００は、通信装置の一例である。ＵＥ１００は、移動可能な無線通信装置であってよい。ＵＥ１００は、ユーザにより利用される装置であってよい。ＵＥ１００は、３ＧＰＰの技術仕様で規定されるユーザ装置であってよい。ＵＥ１００は、例えば、スマートフォンなどの携帯電話端末、タブレット端末、ノートＰＣ、通信モジュール、又は通信カードなどの移動可能な装置である。ＵＥ１００は、車両（例えば、車、電車など）又はこれに設けられる装置であってよい。ＵＥ１００は、車両以外の輸送機体（例えば、船、飛行機など）又はこれに設けられる装置であってよい。ＵＥ１００は、センサ又はこれに設けられる装置であってよい。なお、ＵＥ１００は、移動局、移動端末、移動装置、移動ユニット、加入者局、加入者端末、加入者装置、加入者ユニット、ワイヤレス局、ワイヤレス端末、ワイヤレス装置、ワイヤレスユニット、リモート局、リモート端末、リモート装置、又はリモートユニット等の別の名称で呼ばれてもよい。 The UE 100 is an example of a communication device. The UE 100 may be a mobile wireless communication device. UE 100 may be a device used by a user. The UE 100 may be a user equipment defined by 3GPP technical specifications. The UE 100 is, for example, a portable device such as a mobile phone terminal such as a smart phone, a tablet terminal, a notebook PC, a communication module, or a communication card. The UE 100 may be a vehicle (eg, car, train, etc.) or a device provided therein. The UE 100 may be a transport body other than a vehicle (for example, a ship, an airplane, etc.) or a device provided thereon. The UE 100 may be a sensor or a device attached thereto. Note that the UE 100 includes a mobile station, a mobile terminal, a mobile device, a mobile unit, a subscriber station, a subscriber terminal, a subscriber device, a subscriber unit, a wireless station, a wireless terminal, a wireless device, a wireless unit, a remote station, and a remote terminal. , remote device, or remote unit.
　本実施形態において、ＮＲのＵＥ１００として、一般ＵＥ１００Ａと、一般ＵＥ１００Ａに比べて低減された通信能力を有する特定ＵＥ１００Ｂとの２種類のＵＥを想定する。一般ＵＥ１００Ａは、ＮＲの特徴である高速大容量（ｅｎｈａｎｃｅｄ　Ｍｏｂｉｌｅ　Ｂｒｏａｄｂａｎｄ：ｅＭＢＢ）及び超高信頼低遅延（Ｕｌｔｒａ－Ｒｅｌｉａｂｌｅ　ａｎｄ　Ｌｏｗ　Ｌａｔｅｎｃｙ　Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ：ＵＲＬＬＣ）といった高度な通信能力を有する。特定ＵＥ１００Ｂは、一般ＵＥ１００Ａに比べて装置コスト及び複雑さが低減されたＵＥである。特定ＵＥ１００Ｂは、ＩｏＴ向けにミドルレンジの性能・価格を有するＵＥ１００であって、例えば、一般ＵＥ１００Ａに比べて、無線通信に用いる最大帯域幅が狭く設定されていたり、受信機の数が少なかったりする。なお、受信機は、受信ブランチと称されることがある。特定ＵＥは、Ｒｅｄｕｃｅｄ　ｃａｐａｂｉｌｉｔｙ　ＮＲ　ｄｅｖｉｃｅ又はＲｅｄＣａｐ　ＵＥと称されることがある。 In this embodiment, two types of UEs are assumed as NR UEs 100: a general UE 100A and a specific UE 100B having reduced communication capability compared to the general UE 100A. The general UE 100A has advanced communication capabilities such as high-speed, large-capacity (enhanced mobile broadband: eMBB) and ultra-reliable and low-latency communications (URLLC), which are features of NR. The specific UE 100B is a UE with reduced device cost and complexity compared to the general UE 100A. The specific UE 100B is a UE 100 having middle-range performance and price for IoT. For example, compared to the general UE 100A, the maximum bandwidth used for wireless communication is set narrower, and the number of receivers is smaller. . Note that the receiver is sometimes called a reception branch. A specific UE may be referred to as a Reduced capability NR device or a RedCap UE.
　具体的には、特定ＵＥ１００Ｂは、ＬＰＷＡ（Ｌｏｗ　Ｐｏｗｅｒ　Ｗｉｄｅ　Ａｒｅａ）規格、例えば、ＬＴＥ　Ｃａｔ．（Ｌｏｎｇ　Ｔｅｒｍ　Ｅｖｏｌｕｔｉｏｎ　ＵＥ　Ｃａｔｅｇｏｒｙ）１／１ｂｉｓ、ＬＴＥ　Ｃａｔ．Ｍ１（ＬＴＥ－Ｍ）、ＬＴＥ　Ｃａｔ．ＮＢ１（ＮＢ－ＩｏＴ）で規定されている通信速度以上の通信速度で通信可能であってもよい。特定ＵＥ１００Ｂは、ＬＰＷＡ規格で規定されている帯域幅以上の帯域幅で通信可能であってよい。特定ＵＥ１００Ｂは、Ｒｅｌ－１５又はＲｅｌ－１６のＵＥと比較して、通信に用いる帯域幅が限定されていてよい。例えば、ＦＲ１（Ｆｒｅｑｕｅｎｃｙ　Ｒａｎｇｅ　１）について、特定ＵＥ１００Ｂの最大帯域幅は、２０ＭＨｚであってよい。また、ＦＲ２（Ｆｒｅｑｕｅｎｃｙ　Ｒａｎｇｅ　２）について、例えば、特定ＵＥ１００Ｂの最大帯域幅は、１００ＭＨｚであってよい。特定ＵＥ１００Ｂは、無線信号を受信する受信機を１つのみ有していてよい。特定ＵＥ１００Ｂは、例えば、ウェアラブル装置又はセンサ装置等であってよい。 Specifically, the specific UE 100B is LPWA (Low Power Wide Area) standard, for example, LTE Cat. (Long Term Evolution UE Category) 1/1bis, LTE Cat. M1 (LTE-M), LTE Cat. It may be possible to communicate at a communication speed equal to or higher than the communication speed specified by NB1 (NB-IoT). The specific UE 100B may be able to communicate with a bandwidth equal to or greater than the bandwidth defined by the LPWA standard. The specific UE 100B may have a limited bandwidth for communication compared to Rel-15 or Rel-16 UEs. For example, for FR1 (Frequency Range 1), the maximum bandwidth of the specific UE 100B may be 20 MHz. Also, for FR2 (Frequency Range 2), for example, the maximum bandwidth of the specific UE 100B may be 100 MHz. The specific UE 100B may have only one receiver that receives radio signals. The specific UE 100B may be, for example, a wearable device, a sensor device, or the like.
　ＮＧ－ＲＡＮ２０は、複数の基地局２００を含む。各基地局２００は、少なくとも１つのセルを管理する。セルは、通信エリアの最小単位を構成する。１つのセルは、１つの周波数（キャリア周波数）に属する。用語「セル」は、無線通信リソースを表すことがあり、ＵＥ１００の通信対象を表すこともある。各基地局２００は、自セルに在圏するＵＥ１００との無線通信を行うことができる。基地局２００は、ＲＡＮのプロトコルスタックを使用してＵＥ１００と通信する。プロトコルスタックの詳細については後述する。また、基地局２００は、Ｘｎインターフェイスを介して他の基地局２００（隣接基地局と称されてもよい）に接続される。基地局２００は、Ｘｎインターフェイスを介して隣接基地局と通信する。また、基地局２００は、ＵＥ１００へ向けたＮＲユーザプレーン及び制御プレーンプロトコル終端を提供し、ＮＧインターフェイスを介して５ＧＣ３０に接続される。このようなＮＲの基地局２００は、ｇＮｏｄｅＢ（ｇＮＢ）と称されることがある。 NG-RAN 20 includes multiple base stations 200 . Each base station 200 manages at least one cell. A cell constitutes the minimum unit of a communication area. One cell belongs to one frequency (carrier frequency). The term “cell” may represent a radio communication resource and may also represent a communication target of UE 100 . Each base station 200 can perform radio communication with the UE 100 residing in its own cell. The base station 200 communicates with the UE 100 using the RAN protocol stack. Details of the protocol stack will be described later. Base stations 200 are also connected to other base stations 200 (which may be referred to as adjacent base stations) via Xn interfaces. Base station 200 communicates with neighboring base stations via the Xn interface. The base station 200 also provides NR user plane and control plane protocol termination towards the UE 100 and is connected to the 5GC 30 via the NG interface. Such an NR base station 200 is sometimes referred to as a gNodeB (gNB).
　５ＧＣ３０は、コアネットワーク装置３００を含む。コアネットワーク装置３００は、例えば、ＡＭＦ（Ａｃｃｅｓｓ　ａｎｄ　Ｍｏｂｉｌｉｔｙ　Ｍａｎａｇｅｍｅｎｔ　Ｆｕｎｃｔｉｏｎ）及び／又はＵＰＦ（Ｕｓｅｒ　Ｐｌａｎｅ　Ｆｕｎｃｔｉｏｎ）を含む。ＡＭＦは、ＵＥ１００のモビリティ管理を行う。ＵＰＦは、Ｕ－ｐｌａｎｅ処理に特化した機能を提供する。ＡＭＦ及びＵＰＦは、ＮＧインターフェイスを介して基地局２００と接続される。 The 5GC 30 includes a core network device 300. The core network device 300 includes, for example, AMF (Access and Mobility Management Function) and/or UPF (User Plane Function). AMF performs mobility management of UE100. UPF provides functions specialized for U-plane processing. The AMF and UPF are connected with the base station 200 via the NG interface.
　（プロトコルスタックの構成例）
　次に、図２を参照して、本実施形態に係るプロトコルスタックの構成例について説明する。 (Example of protocol stack configuration)
Next, a configuration example of a protocol stack according to this embodiment will be described with reference to FIG.
　ＵＥ１００と基地局２００との間の無線区間のプロトコルは、物理（ＰＨＹ）レイヤと、ＭＡＣ（Ｍｅｄｉｕｍ　Ａｃｃｅｓｓ　Ｃｏｎｔｒｏｌ）レイヤと、ＲＬＣ（Ｒａｄｉｏ　Ｌｉｎｋ　Ｃｏｎｔｒｏｌ）レイヤと、ＰＤＣＰ（Ｐａｃｋｅｔ　Ｄａｔａ　Ｃｏｎｖｅｒｇｅｎｃｅ　Ｐｒｏｔｏｃｏｌ）レイヤと、ＲＲＣ（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌ）レイヤとを有する。 The protocol of the wireless section between the UE 100 and the base station 200 includes a physical (PHY) layer, a MAC (Medium Access Control) layer, an RLC (Radio Link Control) layer, a PDCP (Packet Data Convergence Protocol) layer, It has an RRC (Radio Resource Control) layer.
　ＰＨＹレイヤは、符号化・復号、変調・復調、アンテナマッピング・デマッピング、及びリソースマッピング・デマッピングを行う。ＵＥ１００のＰＨＹレイヤと基地局２００のＰＨＹレイヤとの間では、物理チャネルを介してデータ及び制御情報が伝送される。 The PHY layer performs encoding/decoding, modulation/demodulation, antenna mapping/demapping, and resource mapping/demapping. Data and control information are transmitted between the PHY layer of the UE 100 and the PHY layer of the base station 200 via physical channels.
　ＭＡＣレイヤは、データの優先制御、ハイブリッドＡＲＱ（Ｈｙｂｒｉｄ　Ａｕｔｏｍａｔｉｃ　Ｒｅｐｅａｔ　ｒｅＱｕｅｓｔ：ＨＡＲＱ）による再送処理、及びランダムアクセスプロシージャ等を行う。ＵＥ１００のＭＡＣレイヤと基地局２００のＭＡＣレイヤとの間では、トランスポートチャネルを介してデータ及び制御情報が伝送される。基地局２００のＭＡＣレイヤはスケジューラを含む。スケジューラは、上下リンクのトランスポートフォーマット（トランスポートブロックサイズ、変調・符号化方式（ＭＣＳ））及びＵＥ１００への割当リソースを決定する。 The MAC layer performs data priority control, retransmission processing by hybrid ARQ (Hybrid Automatic Repeat Quest: HARQ), random access procedures, and the like. Data and control information are transmitted between the MAC layer of the UE 100 and the MAC layer of the base station 200 via transport channels. The MAC layer of base station 200 includes a scheduler. The scheduler determines uplink and downlink transport formats (transport block size, modulation and coding scheme (MCS)) and allocation resources to the UE 100 .
　ＲＬＣレイヤは、ＭＡＣレイヤ及びＰＨＹレイヤの機能を利用してデータを受信側のＲＬＣレイヤに伝送する。ＵＥ１００のＲＬＣレイヤと基地局２００のＲＬＣレイヤとの間では、論理チャネルを介してデータ及び制御情報が伝送される。 The RLC layer uses the functions of the MAC layer and PHY layer to transmit data to the RLC layer on the receiving side. Data and control information are transmitted between the RLC layer of the UE 100 and the RLC layer of the base station 200 via logical channels.
　ＰＤＣＰレイヤは、ヘッダ圧縮・伸張、及び暗号化・復号化を行う。 The PDCP layer performs header compression/decompression and encryption/decryption.
　ＰＤＣＰレイヤの上位レイヤとしてＳＤＡＰ（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ａｄａｐｔａｔｉｏｎ　Ｐｒｏｔｏｃｏｌ）レイヤが設けられていてもよい。ＳＤＡＰ（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ａｄａｐｔａｔｉｏｎ　Ｐｒｏｔｏｃｏｌ）レイヤは、コアネットワークがＱｏＳ（Ｑｕａｌｉｔｙ　ｏｆ　Ｓｅｒｖｉｃｅ）制御を行う単位であるＩＰフローとＡＳ（Ａｃｃｅｓｓ　Ｓｔｒａｔｕｍ）がＱｏＳ制御を行う単位である無線ベアラとのマッピングを行う。 An SDAP (Service Data Adaptation Protocol) layer may be provided as an upper layer of the PDCP layer. The SDAP (Service Data Adaptation Protocol) layer performs mapping between an IP flow, which is the unit of QoS (Quality of Service) control performed by the core network, and a radio bearer, which is the unit of AS (Access Stratum) QoS control.
　ＲＲＣレイヤは、無線ベアラの確立、再確立及び解放に応じて、論理チャネル、トランスポートチャネル、及び物理チャネルを制御する。ＵＥ１００のＲＲＣレイヤと基地局２００のＲＲＣレイヤとの間では、各種設定のためのＲＲＣシグナリングが伝送される。ＵＥ１００のＲＲＣと基地局２００のＲＲＣとの間にＲＲＣ接続がある場合、ＵＥ１００はＲＲＣコネクティッド状態にある。ＵＥ１００のＲＲＣと基地局２００のＲＲＣとの間にＲＲＣ接続がない場合、ＵＥ１００はＲＲＣアイドル状態にある。ＵＥ１００のＲＲＣと基地局２００のＲＲＣとの間のＲＲＣ接続がサスペンドされている場合、ＵＥ１００はＲＲＣインアクティブ状態にある。 The RRC layer controls logical channels, transport channels and physical channels according to radio bearer establishment, re-establishment and release. RRC signaling for various settings is transmitted between the RRC layer of UE 100 and the RRC layer of base station 200 . When there is an RRC connection between the RRC of UE 100 and the RRC of base station 200, UE 100 is in the RRC connected state. If there is no RRC connection between the RRC of the UE 100 and the RRC of the base station 200, the UE 100 is in RRC idle state. When the RRC connection between the RRC of UE 100 and the RRC of base station 200 is suspended, UE 100 is in RRC inactive state.
　ＵＥ１００においてＲＲＣレイヤの上位に位置するＮＡＳレイヤは、ＵＥ１００のセッション管理及びモビリティ管理を行う。ＵＥ１００のＮＡＳレイヤとコアネットワーク装置３００のＮＡＳレイヤとの間では、ＮＡＳシグナリングが伝送される。 The NAS layer located above the RRC layer in the UE 100 performs session management and mobility management for the UE 100. NAS signaling is transmitted between the NAS layer of UE 100 and the NAS layer of core network device 300 .
　なお、ＵＥ１００は、無線インターフェイスのプロトコル以外にアプリケーションレイヤ等を有する。 Note that the UE 100 has an application layer and the like in addition to the radio interface protocol.
　（ユーザ装置の構成）
　次に、図３を参照して、本実施形態に係るＵＥ１００の構成について説明する。ＵＥ１００は、通信部１２０及び制御部１４０を備える。 (Configuration of user device)
Next, the configuration of the UE 100 according to this embodiment will be described with reference to FIG. UE 100 includes communication unit 120 and control unit 140 .
　通信部１２０は、無線信号を基地局２００と送受信することによって基地局２００との無線通信を行う。通信部１２０は、少なくとも１つの受信部１２１と、少なくとも１つの送信部１２２とを有する。受信部１２１及び送信部１２２は、アンテナ及びＲＦ回路を含んで構成されてもよい。アンテナは、信号を電波に変換し、当該電波を空間に放射する。また、アンテナは、空間における電波を受信し、当該電波を信号に変換する。ＲＦ回路は、アンテナを介して送受信される信号のアナログ処理を行う。ＲＦ回路は、高周波フィルタ、増幅器、変調器及びローパスフィルタ等を含んでもよい。 The communication unit 120 performs wireless communication with the base station 200 by transmitting and receiving wireless signals to and from the base station 200 . The communication unit 120 has at least one reception unit 121 and at least one transmission unit 122 . The receiving section 121 and the transmitting section 122 may be configured including an antenna and an RF circuit. The antenna converts a signal into radio waves and radiates the radio waves into space. Also, the antenna receives radio waves in space and converts the radio waves into signals. The RF circuitry performs analog processing of signals transmitted and received through the antenna. The RF circuitry may include high frequency filters, amplifiers, modulators, low pass filters, and the like.
　受信部１２１は、受信機（ＲＸ：Ｒｅｃｅｉｖｅｒ）と称されてよい。送信部１２２は、送信機（ＴＸ：Ｔｒａｎｓｍｉｔｔｅｒ）と称されてよい。ＵＥ１００が一般ＵＥ１００Ａである場合、通信部１２０が有する受信機の数は、２つ乃至４つであってもよい。ＵＥ１００が特定ＵＥ１００Ｂである場合、通信部１２０が有する受信機の数は、１つ又は２つであってもよい。 The receiving unit 121 may be called a receiver (RX: Receiver). The transmitter 122 may be referred to as a transmitter (TX). When the UE 100 is the general UE 100A, the number of receivers included in the communication unit 120 may be two to four. When the UE 100 is the specific UE 100B, the number of receivers included in the communication unit 120 may be one or two.
　制御部１４０は、ＵＥ１００における各種の制御を行う。制御部１４０は、通信部１２０を介した基地局２００との通信を制御する。後述のＵＥ１００の動作は、制御部１４０の制御による動作であってよい。制御部１４０は、プログラムを実行可能な少なくとも１つのプロセッサ及びプログラムを記憶するメモリを含んでよい。プロセッサは、プログラムを実行して、制御部１４０の動作を行ってもよい。制御部１４０は、アンテナ及びＲＦ回路を介して送受信される信号のデジタル処理を行うデジタル信号プロセッサを含んでもよい。当該デジタル処理は、ＲＡＮのプロトコルスタックの処理を含む。なお、メモリは、プロセッサにより実行されるプログラム、当該プログラムに関するパラメータ、及び、当該プログラムに関するデータを記憶する。メモリは、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＥＰＲＯＭ（Ｅｒａｓａｂｌｅ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＥＥＰＲＯＭ（Ｅｌｅｃｔｒｉｃａｌｌｙ　Ｅｒａｓａｂｌｅ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）及びフラッシュメモリの少なくとも１つを含んでよい。メモリの全部又は一部は、プロセッサ内に含まれていてよい。 The control unit 140 performs various controls in the UE 100. The control unit 140 controls communication with the base station 200 via the communication unit 120 . The operation of the UE 100, which will be described later, may be an operation under the control of the control unit 140. The control unit 140 may include at least one processor capable of executing a program and a memory that stores the program. The processor may execute a program to operate the controller 140 . Control unit 140 may include a digital signal processor that performs digital processing of signals transmitted and received through the antenna and RF circuitry. The digital processing includes processing of the protocol stack of the RAN. Note that the memory stores programs executed by the processor, parameters related to the programs, and data related to the programs. The memory is ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), RAM (Random Access Mem ory) and flash memory. All or part of the memory may be included within the processor.
　このように構成されたＵＥ１００において、受信部１２１は、サービングセルと異なる他セルに対する無線品質の測定を緩和する緩和測定を実行するか否かの選択に用いられる緩和基準を示す緩和基準情報を基地局から受信する。制御部１４０は、緩和基準に基づいて、緩和測定を実行するか否かを選択する。緩和測定は、緩和基準に含まれる第１緩和基準に基づいて選択される第１緩和測定と、緩和基準に含まれる第２緩和基準に基づいて選択され且つ第１緩和測定よりも測定が緩和されている第２緩和測定と、を含む。制御部１４０は、第１緩和基準としてＵＥ１００がセル端にいないことを検知するためのセル端基準を示すセル端情報及び第１緩和基準としてＵＥ１００が低モビリティ状態であることを検知するための低モビリティ基準を示す低モビリティ情報の少なくとも一方と、第２緩和基準としてＵＥ１００が静止状態にあることを検知するための静止基準を示す静止情報と、を緩和基準情報が含む場合、制御部１４０は、静止基準が満たされたとき、セル端基準及び低モビリティ基準の少なくとも一方が満たされていても、第２緩和測定を実行することを選択する。これにより、静止基準が満たされたときには、第１緩和測定よりも測定が緩和されている第２緩和測定の実行を選択することで、ＵＥ１００は、緩和測定を適切に実行でき、省電力化及びバッテリー寿命向上を更に図ることができる。 In the UE 100 configured in this way, the receiving unit 121 transmits the relaxation criterion information indicating the relaxation criterion used for selecting whether or not to perform the relaxation measurement for relaxing the measurement of the radio quality of the cell different from the serving cell to the base station. receive from The control unit 140 selects whether or not to perform the relaxation measurement based on the relaxation criteria. The relaxation measure is selected based on a first relaxation criterion included in the relaxation criterion and a second relaxation criterion included in the relaxation criterion and is more relaxed than the first relaxation measurement. and a second relaxation measurement in which the The control unit 140 uses cell-edge information indicating a cell-edge criterion for detecting that the UE 100 is not at the cell edge as the first mitigation criterion and a low mobility state for detecting that the UE 100 is in a low-mobility state as the first mitigation criterion. When the mitigation criterion information includes at least one of low mobility information indicating a mobility criterion and stationary information indicating a stationary criterion for detecting that the UE 100 is in a stationary state as a second mitigation criterion, the control unit 140, When the stationary criterion is met, it chooses to perform the second mitigation measurement even if at least one of the cell edge criterion and the low mobility criterion is met. Thus, when the stationary criterion is satisfied, by selecting the execution of the second relaxation measurement in which the measurement is more relaxed than the first relaxation measurement, the UE 100 can appropriately perform the relaxation measurement, saving power and It is possible to further improve the battery life.
　（基地局の構成）
　次に、図４を参照して、本実施形態に係る基地局２００の構成について説明する。基地局２００は、無線通信部２２０と、ネットワーク通信部２３０と、制御部２４０とを有する。 (Base station configuration)
Next, the configuration of the base station 200 according to this embodiment will be described with reference to FIG. The base station 200 has a radio communication section 220 , a network communication section 230 and a control section 240 .
　無線通信部２２０は、例えば、ＵＥ１００からの無線信号を受信し、ＵＥ１００への無線信号を送信する。無線通信部２２０は、無線信号を受信する１つ又は複数の受信部及び無線信号を送信する１つ又は複数の送信部を備えてよい。 For example, the radio communication unit 220 receives radio signals from the UE 100 and transmits radio signals to the UE 100. The radio communication unit 220 may include one or more receivers that receive radio signals and one or more transmitters that transmit radio signals.
　ネットワーク通信部２３０は、信号をネットワークと送受信する。ネットワーク通信部２３０は、例えば、基地局間インターフェイスであるＸｎインターフェイスを介して接続された隣接基地局から信号を受信し、隣接基地局へ信号を送信する。また、ネットワーク通信部２３０は、例えば、ＮＧインターフェイスを介して接続されたコアネットワーク装置３００から信号を受信し、コアネットワーク装置３００へ信号を送信する。 The network communication unit 230 transmits and receives signals to and from the network. The network communication unit 230, for example, receives signals from adjacent base stations connected via an Xn interface, which is an interface between base stations, and transmits signals to the adjacent base stations. Also, the network communication unit 230 receives a signal from the core network device 300 connected via the NG interface, for example, and transmits the signal to the core network device 300 .
　制御部２４０は、基地局２００における各種の制御を行う。制御部２４０は、例えば、無線通信部２２０を介したＵＥ１００との通信を制御する。また、制御部２４０は、例えば、ネットワーク通信部２３０を介したノード（例えば、隣接基地局、コアネットワーク装置３００）との通信を制御する。後述の基地局２００の動作は、制御部２４０の制御による動作であってよい。 The control unit 240 performs various controls in the base station 200. The control unit 240 controls communication with the UE 100 via the radio communication unit 220, for example. Also, the control unit 240 controls communication with nodes (for example, adjacent base stations, the core network device 300) via the network communication unit 230, for example. Operations of the base station 200 described later may be operations under the control of the control unit 240 .
　制御部２４０は、プログラムを実行可能な少なくとも１つのプロセッサ及びプログラムを記憶するメモリを含んでよい。プロセッサは、プログラムを実行して、制御部２４０の動作を行ってもよい。制御部２４０は、アンテナ及びＲＦ回路を介して送受信される信号のデジタル処理を行うデジタル信号プロセッサを含んでもよい。当該デジタル処理は、ＲＡＮのプロトコルスタックの処理を含む。なお、メモリは、プロセッサにより実行されるプログラム、当該プログラムに関するパラメータ、及び、当該プログラムに関するデータを記憶する。メモリの全部又は一部は、プロセッサ内に含まれていてよい。 The control unit 240 may include at least one processor that can execute programs and a memory that stores the programs. The processor may execute a program to operate the controller 240 . Control unit 240 may include a digital signal processor that performs digital processing of signals transmitted and received through the antenna and RF circuitry. The digital processing includes processing of the protocol stack of the RAN. Note that the memory stores programs executed by the processor, parameters related to the programs, and data related to the programs. All or part of the memory may be included within the processor.
　（システム動作）
　（１）第１動作例
　図５から図７を参照して、第１動作例について説明する。 (system operation)
(1) First Operation Example A first operation example will be described with reference to FIGS.
　図５において、ＵＥ１００は、ＲＲＣコネクティッド状態にある。従って、ＵＥ１００は、基地局２００が管理するセル（サービングセル）とＲＲＣ接続を確立している。なお、ＵＥ１００は、ＲＲＣアイドル状態又はＲＲＣインアクティブ状態であってもよい。従って、ＵＥ１００は、基地局２００が管理するセル（サービングセル）にキャンプしていてもよい。 　In FIG. 5, the UE 100 is in the RRC connected state. Therefore, UE 100 has established an RRC connection with a cell (serving cell) managed by base station 200 . Note that the UE 100 may be in the RRC idle state or the RRC inactive state. Therefore, the UE 100 may camp on a cell managed by the base station 200 (serving cell).
　ステップＳ１０１において、基地局２００は、緩和基準情報を含むＲＲＣメッセージをＵＥ１００へ送信する。ＵＥ１００は、無線リソース管理（ＲＲＣ）メッセージを基地局２００から受信する。これにより、ＵＥ１００は、緩和基準情報を基地局２００から受信する。 In step S101, the base station 200 transmits an RRC message including mitigation criterion information to the UE100. UE 100 receives a radio resource control (RRC) message from base station 200 . Thereby, the UE 100 receives the relaxation criterion information from the base station 200 .
　ＲＲＣメッセージは、ブロードキャストにより送信されるシステム情報ブロック（例えば、ＳＩＢ２など）であってよいし、ＵＥ１００へ個別に送信されるＲＲＣ再設定メッセージなどであってもよい。 The RRC message may be a system information block (for example, SIB2, etc.) transmitted by broadcast, or may be an RRC reconfiguration message transmitted individually to the UE 100, or the like.
　緩和基準情報は、サービングセルと異なる他セルに対する無線品質の測定を緩和する緩和測定（いわゆる、ＲＲＭ　ｒｅｌａｘａｔｉｏｎ）を実行するか否かの選択に用いられる緩和基準を示す。 The relaxation criterion information indicates the relaxation criterion used for selecting whether or not to perform relaxation measurement (so-called RRM relaxation) for relaxing radio quality measurement for other cells different from the serving cell.
　ここで、緩和測定は、緩和基準に含まれる第１緩和基準に基づいて選択される第１緩和測定と、緩和基準に含まれる第２緩和基準に基づいて選択され且つ第１緩和測定よりも測定が緩和されている第２緩和測定と、を含む。第１緩和測定は、３ＧＰＰ技術仕様書のリリース１６において導入された緩和測定であってよい。第２緩和測定は、３ＧＰＰ技術仕様書のリリース１７において導入された緩和測定であってよい。 Here, the relaxation measurement is a first relaxation measurement selected based on a first relaxation criterion included in the relaxation criterion and a second relaxation measurement selected based on a second relaxation criterion included in the relaxation criterion and measured more than the first relaxation measurement. and a second relaxation measurement in which is relaxed. The first relaxation measurement may be the relaxation measurement introduced in Release 16 of the 3GPP Technical Specifications. The second relaxation measurement may be the relaxation measurement introduced in Release 17 of the 3GPP Technical Specifications.
　緩和基準情報は、第１緩和測定の選択に用いられる第１緩和基準を示す第１緩和基準情報と、第２緩和測定の選択に用いられる第２緩和基準を示す第２緩和基準情報と、を含んでよい。なお、緩和基準情報は、セル再選択用の測定要件を緩和するための情報であってよい。 The relaxed criterion information includes first relaxed criterion information indicating the first relaxed criterion used for selecting the first relaxed measure, and second relaxed criterion information indicating the second relaxed criterion used for selecting the second relaxed measure. may contain. Note that the relaxation criterion information may be information for relaxing measurement requirements for cell reselection.
　第１緩和基準情報は、ＵＥ１００が低モビリティ状態であることを検知するための低モビリティ基準（ｌｏｗＭｏｂｉｌｉｔｙＥｖａｌｕａｔｉｏｎ　ｃｒｉｔｅｒｉｏｎ）を示す低モビリティ情報（ｌｏｗＭｏｂｉｌｉｔｙＥｖａｌｕａｔｉｏｎ）と、ＵＥ１００がセル端にいないことを検知するためのセル端基準（ｃｅｌｌＥｄｇｅＥｖａｌｕａｔｉｏｎ　ｃｒｉｔｅｒｉｏｎ）を示すセル端情報（ｃｅｌｌＥｄｇｅＥｖａｌｕａｔｉｏｎ）と、を含んでよい。低モビリティ基準及びセル端基準は、第１緩和基準に含まれてよい。 The first relaxation criterion information includes low mobility information (lowMobilityEvaluation) indicating a low mobility criterion (lowMobilityEvaluation criteria) for detecting that the UE 100 is in a low mobility state, and a cell for detecting that the UE 100 is not at the cell edge. and cell edge information (cellEdgeEvaluation) that indicates an edge criterion (cellEdgeEvaluation criteria). The low mobility criteria and the cell edge criteria may be included in the first mitigation criteria.
　低モビリティ情報は、低モビリティ基準が満たされたか否かを判定するための閾値を含んでよい。同様に、セル端情報は、セル端基準が満たされたか否かを判定するための閾値を含んでよい。閾値は、例えば、ＳＳｅａｒｃｈＤｅｌｔａＰ、ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＰなどの少なくともいずれかであってよい。また、低モビリティ情報及びセル端情報のそれぞれは、対応する基準の判定に用いられる他の情報（例えば、所定期間を示す情報）を含んでいてもよい。 The low mobility information may include thresholds for determining whether low mobility criteria have been met. Similarly, the cell edge information may include thresholds for determining whether the cell edge criteria have been met. The threshold may be, for example, at least one of S SearchDeltaP , S SearchThresholdP , and the like. Also, each of the low mobility information and the cell edge information may include other information (for example, information indicating a predetermined period) used for determining the corresponding criteria.
　第２緩和基準情報は、ＵＥ１００が静止状態にあることを検知するための静止基準（ｓｔａｔｉｏｎａｒｙＭｏｂｉｌｉｔｙＥｖａｌｕａｔｉｏｎ　ｃｒｉｔｅｒｉｏｎ）を示す静止情報（ｓｔａｔｉｏｎａｒｙＭｏｂｉｌｉｔｙＥｖａｌｕａｔｉｏｎ）と、ＵＥ１００が静止中にセル端にいないことを検知するための静止中セル端基準（ｃｅｌｌＥｄｇｅＥｖａｌｕａｔｉｏｎＷｈｉｌｅＳｔａｔｉｏｎａｒｙ　ｃｒｉｔｅｒｉｏｎ）を示す静止中セル端情報（ｃｅｌｌＥｄｇｅＥｖａｌｕａｔｉｏｎＷｈｉｌｅＳｔａｔｉｏｎａｒｙ）と、を含んでよい。静止基準及び静止中セル端基準は、第２緩和基準に含まれてよい。 The second mitigation criterion information includes stationary information (stationary MobilityEvaluation) indicating a stationary criterion (stationary MobilityEvaluation criteria) for detecting that the UE 100 is in a stationary state, and stationary for detecting that the UE 100 is not at the cell edge while stationary. and stationary cell edge information (cellEdgeEvaluationWhileStationary) that indicates a medium cell edge criterion (cellEdgeEvaluationWhileStationary criteria). The stationary criteria and the stationary cell edge criteria may be included in the second relaxed criteria.
　静止情報は、静止基準が満たされたか否かを判定するための閾値を含んでよい。同様に、静止中セル端情報は、静止中セル端基準が満たされたか否かを判定するための閾値を含んでよい。閾値は、例えば、ＳＳｅａｒｃｈＤｅｌｔａＰ－Ｓｔａｔｉｏｎａｒｙ、ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＰ２、ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＱ２などの少なくともいずれかであってよい。また、静止情報及び静止中セル端情報のそれぞれは、対応する基準の判定に用いられる他の情報（例えば、所定期間を示す情報）を含んでいてもよい。 The stillness information may include thresholds for determining whether the stillness criteria have been met. Similarly, the stationary cell edge information may include thresholds for determining whether the stationary cell edge criteria have been met. The threshold may be, for example, at least one of S SearchDeltaP-Stationary , S SearchThresholdP2 , S SearchThresholdQ2 , and the like. Further, each of the stationary information and the stationary cell edge information may include other information (for example, information indicating a predetermined period) used for determination of the corresponding criteria.
　ＲＲＣメッセージは、低モビリティ基準とセル端基準との両方の基準を満たす場合に前記第１緩和測定を許可する組み合わせ情報（ｃｏｍｂｉｎｅＲｅｌａｘｅｄＭｅａｓＣｏｎｄｉｔｉｏｎ）を含んでいてもよい。ＵＥ１００は、当該組み合わせ情報が含まれるフィールドが存在しない場合、低モビリティ基準とセル端基準との一方又は両方が満たされた場合に、緩和測定が許可された（すなわち、測定要件が緩和された）と判定してもよい。 The RRC message may include combination information (combineRelaxedMeasCondition) that permits the first relaxed measurement when both the low mobility criterion and the cell edge criterion are met. UE 100, if there is no field containing the combination information, when one or both of the low mobility criteria and the cell edge criteria are satisfied, relaxed measurement is allowed (i.e., the measurement requirements are relaxed) can be determined.
　ここで、ＵＥ１００の制御部１４０は、緩和基準情報がセル端情報と静止情報とを含む場合、セル端情報を無視してよい。また、制御部１４０は、ＵＥ１００が静止基準に基づく判定（評価）を可能である場合、セル端情報が含まれるフィールドを無視して、セル端基準に基づいて判定しなくてよい。 Here, the control unit 140 of the UE 100 may ignore the cell edge information when the relaxation criterion information includes the cell edge information and the static information. Also, when the UE 100 is capable of making a determination (evaluation) based on the stationary criteria, the control unit 140 may ignore the field containing the cell-edge information and not make a determination based on the cell-edge criteria.
　本動作例では、ＵＥ１００の制御部１４０は、緩和基準情報がセル端情報と静止情報とを含む場合、セル端情報を無視するものとして説明を進めることがある。 In this operation example, the explanation may proceed as if the control unit 140 of the UE 100 ignores the cell edge information when the mitigation criterion information includes the cell edge information and the stationary information.
　ステップＳ１０２において、ＵＥ１００の制御部１４０は、緩和基準を満たすか否かを判定し、緩和測定を実行するか否かを選択する。 In step S102, the control unit 140 of the UE 100 determines whether or not the mitigation criteria are met, and selects whether or not to perform mitigation measurement.
　ＵＥ１００は、サービングセルの無線品質として、受信電力及び受信品質の少なくとも一方を測定する。受信電力は、ＲＳＲＰ（Ｒｅｆｅｒｅｎｃｅ　Ｓｉｇｎａｌ　Ｒｅｃｅｉｖｅｄ　Ｐｏｗｅｒ）であってよい。受信品質は、ＲＳＲＱ（Ｒｅｆｅｒｅｎｃｅ　Ｓｉｇｎａｌ　Ｒｅｃｅｉｖｅｄ　Ｑｕａｌｉｔｙ）であってよい。ＵＥ１００は、サービングセルからの基準信号（ＲＳ）を測定することにより、無線品質を測定する。 The UE 100 measures at least one of received power and received quality as the radio quality of the serving cell. The received power may be RSRP (Reference Signal Received Power). The reception quality may be RSRQ (Reference Signal Received Quality). UE 100 measures radio quality by measuring a reference signal (RS) from a serving cell.
　ＵＥ１００の制御部１４０は、以下の式が満たされた場合、低モビリティ基準が満たされたと判定する。
　・（ＳｒｘｌｅｖＲｅｆ　－　Ｓｒｘｌｅｖ）　＜　ＳＳｅａｒｃｈＤｅｌｔａＰ The control unit 140 of the UE 100 determines that the low mobility criterion is satisfied when the following formula is satisfied.
・(Srxlev Ref - Srxlev) < S SearchDeltaP
　なお、Ｓｒｘｌｅｖは、サービングセルの現在のＳｒｘｌｅｖ値である。ＳｒｘｌｅｖＲｅｆは、サービングセルの基準Ｓｒｘｌｅｖ値である。基準Ｓｒｘｌｅｖ値は、（ｉ）新規セルの選択又は再選択後、（ｉｉ）　（Ｓｒｘｌｅｖ　－　ＳｒｘｌｅｖＲｅｆ）　＞　０を満たす場合、又は、（ｉｉｉ）低モビリティ基準が所定期間（ＴＳｅａｒｃｈＤｅｌｔａＰ）満たされていない場合、ＵＥ１００は、ＳｒｘｌｅｖＲｅｆにサービングセルの現在のＳｒｘｌｅｖ値を設定してよい。 where Srxlev is the current Srxlev value of the serving cell. Srxlev Ref is the reference Srxlev value of the serving cell. The reference Srxlev value is determined (i) after selection or reselection of a new cell, (ii) when (Srxlev − Srxlev Ref ) > 0, or (iii) when the low mobility criterion is satisfied for a predetermined period of time (T SearchDeltaP ). If not, the UE 100 may set Srxlev Ref to the current Srxlev value of the serving cell.
　なお、Ｓｒｘｌｅｖ値は、次の式により算出される。
　・Ｓｒｘｌｅｖ　＝　Ｑｒｘｌｅｖｍｅａｓ　－　（Ｑｒｘｌｅｖｍｉｎ　＋　Ｑｒｘｌｅｖｍｉｎｏｆｆｓｅｔ　）－　Ｐｃｏｍｐｅｎｓａｔｉｏｎ　－　Ｑｏｆｆｓｅｔｔｅｍｐ The Srxlev value is calculated by the following formula.
Srxlev = Qrxlevmeas - ( Qrxlevmin + Qrxlevminoffset ) - P compensation - Qoffset temp
　Ｑｒｘｌｅｖｍｅａｓは、測定されたセルの受信電力（ＲＳＲＰ）である。Ｑｒｘｌｅｖｍｉｎは、最小要求受信電力である。Ｑｒｘｌｅｖｍｉｎｏｆｆｓｅｔは、定常的に適用される所定オフセットである。Ｐｃｏｍｐｅｎｓａｔｉｏｎは、アップリンクの能力に関するパラメータである。Ｑｏｆｆｓｅｔｔｅｍｐは、一時的に適用されるオフセットである。 Q rxlevmeas is the measured cell received power (RSRP). Q rxlevmin is the minimum required received power. Q rxlevminoffset is a predetermined offset that is constantly applied. P compensation is a parameter related to uplink capability. Qoffset temp is the offset applied temporarily.
　また、ＵＥ１００は、以下の式が満たされた場合、セル端基準が満たされたと判定する。
　・Ｓｒｘｌｅｖ　＞　ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＰ，　且つ
　・ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＱが設定されている場合、Ｓｑｕａｌ　＞　ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＱ Also, the UE 100 determines that the cell edge criterion is satisfied when the following formula is satisfied.
Srxlev > S SearchThresholdP , and Squal > S SearchThresholdQ , if S SearchThresholdQ is set
　Ｓｑｕａｌは、サービングセルの現在のＳｑｕａｌ値である。なお、Ｓｑｕａｌ値は、「Ｑｑｕａｌｍｅａｓ　-　（Ｑｑｕａｌｍｉｎ　＋　Ｑｑｕａｌｍｉｎｏｆｆｓｅｔ）　－　Ｑｏｆｆｓｅｔｔｅｍｐ」により算出される。Ｑｑｕａｌｍｅａｓは、測定されたセルの受信品質（ＲＳＲＱ）である。Ｑｑｕａｌｍｉｎは、最小要求品質レベルである。Ｑｑｕａｌｍｉｎｏｆｆｓｅｔは、定常的に適用される所定オフセットである。 Squal is the current Squal value of the serving cell. The Squal value is calculated by "Q qualmeas - (Q qualmin + Q qualminoffset ) - Qoffset temp" . Q qualmeas is the measured cell reception quality (RSRQ). Q qualmin is the minimum required quality level. Q qualminoffset is a predetermined offset that is constantly applied.
　また、ＵＥ１００は、以下の式が満たされた場合、静止基準が満たされたと判定する。
　・（ＳｒｘｌｅｖＲｅｆ　－　Ｓｒｘｌｅｖ）　＜　ＳＳｅａｒｃｈＤｅｌｔａＰ－Ｓｔａｔｉｏｎａｒｙ Also, the UE 100 determines that the stationary criterion is satisfied when the following formula is satisfied.
・(Srxlev Ref - Srxlev) < S SearchDeltaP-Stationary
　なお、基準Ｓｒｘｌｅｖ値は、（ｉ）新規セルの選択又は再選択後、（ｉｉ）　（Ｓｒｘｌｅｖ　－　ＳｒｘｌｅｖＲｅｆ）　＞　０を満たす場合、又は、（ｉｉｉ）低モビリティ基準が所定期間（ＴＳｅａｒｃｈＤｅｌｔａＰ－Ｓｔａｔｉｏｎａｒｙ）満たされていない場合、ＵＥ１００は、ＳｒｘｌｅｖＲｅｆにサービングセルの現在のＳｒｘｌｅｖ値を設定してよい。 Note that the reference Srxlev value is (i) after selection or reselection of a new cell, (ii) when (Srxlev - SrxlevRef) > 0 is satisfied, or (iii) when the low mobility criterion is a predetermined period (T SearchDeltaP-Stationary ) If not, the UE 100 may set SrxlevRef to the current Srxlev value of the serving cell.
　また、ＵＥ１００は、以下の式が満たされた場合、静止中セル端基準が満たされたと判定する。
　・静止基準が所定期間（ＴＳｅａｒｃｈＤｅｌｔａＰ－Ｓｔａｔｉｏｎａｒｙ）満たされ、
　・Ｓｒｘｌｅｖ　＞　ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＰ２，
　・閾値ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＱ２が設定されている場合、Ｓｑｕａｌ　＞　ＳＳｅａｒｃｈＴｈｒｅｓｈｏｌｄＱ２， Further, when the following formula is satisfied, the UE 100 determines that the stationary cell edge criterion is satisfied.
- the stationary criterion is met for a predetermined period of time (TSearchDeltaP -Stationary ),
・Srxlev > SSearchThresholdP2 ,
If the threshold S SearchThresholdQ2 is set, then Squal > S SearchThresholdQ2 ,
　第１に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてイントラ周波数セル（以下、イントラ周波数ＮＲセルを例に挙げて説明する）に対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 First, whether the control unit 140 of the UE 100 performs relaxation measurement to relax the measurement of radio quality for an intra-frequency cell (hereinafter, the intra-frequency NR cell will be described as an example) as another cell different from the serving cell. A case of selecting either
　ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　≦　ＳＩｎｔｒａＳｅａｒｃｈＰ」又は「Ｓｑｕａｌ　≦　ＳＩｎｔｒａＳｅａｒｃｈＱ」を満たす場合であって、以下のように緩和基準がＵＥ１００に設定されている場合、イントラ周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図６に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、低モビリティ基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、低モビリティ基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 The control unit 140 of the UE 100, when "Srxlev ≤ S IntraSearchP " or "Squal ≤ S IntraSearchQ " is satisfied, and when the relaxation criteria are set in the UE 100 as follows, the radio quality for intra frequency NR cells Select whether to perform relaxation measurements. Specifically, as shown in FIG. 6, the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the low mobility criterion in any of the following cases: You can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the low mobility criterion unless any of the following cases apply.
　（ａ１１）ＵＥ１００に低モビリティ基準が設定され（すなわち、ＵＥ１００が低モビリティ情報を受信し）、かつ低モビリティ基準が満たされる場合、又は
　（ａ１２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ａ１３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ低モビリティ基準のみが満たされる場合
　（ａ１４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 (a11) low mobility criteria are set to UE100 (i.e., UE100 receives low mobility information) and low mobility criteria are satisfied, or (a12) low mobility criteria and cell edge criteria are set to UE100 ( That is, when UE 100 receives low mobility information and cell edge information) and combination information is not set (i.e., combination information is not received), and only low mobility criteria are satisfied (a13) to UE 100 When low mobility criteria and stationary criteria are set (that is, UE 100 receives low mobility information and stationary information) and only low mobility criteria are satisfied (a14) UE 100 has low mobility criteria, stationary criteria and stationary cell edge If the criteria are set (i.e., the UE 100 receives low mobility information, stationary information and stationary cell edge information) and only the low mobility criteria are met
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、無線信号の検出間隔（Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ）を通常測定における検出間隔よりも広くしてよく、無線信号の測定間隔（Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ）を通常測定における測定間隔よりも広くしてよく、無線品質の評価間隔（Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａ）を通常測定における評価間隔よりも広くしてよい。ＵＥ１００の制御部１４０は、各間隔を、通常測定における各間隔の３倍にしてよい。 In this case, the control unit 140 of the UE 100 may set the radio signal detection interval (T detect, NR_Intra ) wider than the detection interval in normal measurement as the first relaxation measurement, and the radio signal measurement interval (T measure, NR_Intra ) may be set wider than the measurement interval in normal measurement, and the radio quality evaluation interval (T evaluate, NR_Intra ) may be set wider than the evaluation interval in normal measurement. The control unit 140 of the UE 100 may make each interval three times the interval in normal measurement.
　また、ＵＥ１００の制御部１４０は、以下のように緩和基準がＵＥ１００に設定されている場合、イントラ周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図７に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなれば、静止基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 Also, when the mitigation criteria are set in the UE 100 as follows, the control unit 140 of the UE 100 selects whether or not to perform mitigation measurement for mitigating radio quality measurement for intra-frequency NR cells. Specifically, as shown in FIG. 7, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary reference in any of the following cases. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary reference if any of the following cases do not apply.
　（ａ２１）ＵＥ１００に静止基準が設定され（すなわち、ＵＥ１００が静止情報を受信し）、かつ静止基準が満たされる場合、又は
　（ａ２２）ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合
　（ａ２３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ａ２４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 (a21) when the stationary reference is set in the UE 100 (that is, the UE 100 receives stationary information) and the stationary reference is satisfied, or (a22) the stationary reference and the stationary cell edge reference are set in the UE 100 ( That is, the UE 100 receives stationary information and stationary cell edge information), and regardless of whether the low mobility criteria are met, the stationary criteria are satisfied without the stationary cell edge criteria being met. Case (a23) Low mobility criteria and stationary criteria are set in the UE 100 (i.e., the UE 100 receives low mobility information and stationary information), and whether or not the low mobility criteria are met, the stationary criteria are met (a24) Low mobility criteria, stationary criteria and stationary cell edge criteria are set in UE 100 (that is, UE 100 receives low mobility information, stationary information and stationary cell edge information), and low mobility If the static criteria are met without the stationary cell edge criteria being met, regardless of whether the criteria were met or not
　この場合、図７及び図８に示すように、ＵＥ１００の制御部１４０は、第２緩和測定として、無線信号の検出間隔（Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ）を第１緩和測定における検出間隔よりも広くしてよく、無線信号の測定間隔（Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ）を第１緩和測定における測定間隔よりも広くしてよく、無線品質の評価間隔（Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａ）を第１緩和測定における評価間隔よりも広くしてよい。図７に示すように、ＵＥ１００の制御部１４０は、（ａ２１）から（ａ２４）のケースでは、Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ、Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ、Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａを除いて、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）のクラス４．２．２．３（すなわち、Ｍｅａｓｕｒｅｍｅｎｔｓ　ｏｆ　ｉｎｔｒａ－ｆｒｅｑｕｅｎｃｙ　ＮＲ　ｃｅｌｌｓ）に規定された要件を適用してよい。ＵＥ１００の制御部１４０は、各間隔を、第１緩和測定における各間隔のＪ２倍にしてよい。Ｊ２は、静止基準（ｓｔａｔｉｏｎａｒｙＭｏｂｉｌｉｔｙＥｖａｌｕａｔｉｏｎ　ｃｒｉｔｅｒｉｏｎ）を満たすＵＥに適用される測定緩和ファクターである。Ｊ２は、Ｋ１（＝３）より大きい値であってよい。なお、Ｋ１は、低モビリティ基準を満たすＵＥに適用される測定緩和ファクターである。 In this case, as shown in FIGS. 7 and 8, the control unit 140 of the UE 100 widens the radio signal detection interval (T detect, NR_Intra ) as the second relaxation measurement than the detection interval in the first relaxation measurement. Often, the radio signal measurement interval (T measure, NR_Intra ) may be set wider than the measurement interval in the first relaxation measurement, and the radio quality evaluation interval (T evaluate, NR_Intra ) may be set wider than the evaluation interval in the first relaxation measurement. You can As shown in FIG. 7, in the cases of (a21) to (a24), the control unit 140 of the UE 100, except for T detect, NR_Intra , T measure, NR_Intra , T evaluate, NR_Intra , the 3GPP technical specifications (specifically may apply the requirements specified in class 4.2.2.3 (ie, Measurements of intra-frequency NR cells) of TS 38.133). The control unit 140 of the UE 100 may make each interval J2 times as large as each interval in the first relaxation measurement. J2 is the measurement relaxation factor applied to UEs meeting the stationaryMobilityEvaluation criteria. J2 may be a value greater than K1 (=3). Note that K1 is the measurement relaxation factor applied to UEs meeting the low mobility criteria.
　また、図９に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止中セル端基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、静止中セル端基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 Further, as shown in FIG. 9, in any of the following cases, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary cell edge criteria. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the intra-frequency NR cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply.
　（ａ３１）ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）、かつ、両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合
　（ａ３２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）かつ両方の基準が満たされている場合であって、かつ、ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）かつ両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合 (a31) When the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information) and both criteria are satisfied. and the predetermined time has not passed since the last measurement for cell reselection (a32) low mobility criteria and cell edge criteria are set in UE 100 (that is, UE 100 is low mobility information and cell edge information) and both criteria are satisfied, and the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information received) and both criteria are met, and a predetermined time has not elapsed since the last measurement for cell reselection.
　この場合、図９に示すように、ＵＥ１００の制御部１４０は、第２緩和測定として、検出間隔（Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ）、測定間隔（Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ）、及び評価間隔（Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａ）で測定を実行しなくてよい。ＵＥ１００の制御部１４０は、第２緩和測定として、所定期間、測定を実行しなくてよい。図９に示すように、（ａ３１）及び（ａ３２）のカースでは、ＵＥ１００は、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）の表４．２．２．３－１で規定されたＴｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ、Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ及びＴｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａを満たす必要はない。 In this case, as shown in FIG. 9, the control unit 140 of the UE 100 uses the second relaxation measurement as the detection interval (T detect, NR_Intra ), the measurement interval (T measure, NR_Intra ), and the evaluation interval (T evaluate, NR_Intra ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period. As shown in FIG. 9, in the curses (a31) and (a32), the UE 100 is defined in Table 4.2.2.3-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, NR_Intra , T measure, NR_Intra and T evaluate, NR_Intra .
　第２に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてインター周波数セル（以下、インター周波数ＮＲセルを例に挙げて説明する）に対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 Second, whether the control unit 140 of the UE 100 performs a relaxation measurement to relax the measurement of the radio quality for the inter-frequency cell (hereinafter, the inter-frequency NR cell will be described as an example) as another cell different from the serving cell A case of selecting either
　ＵＥ１００の制御部１４０は、以下のように緩和基準がＵＥ１００に設定されている場合、インター周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図１０に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、低モビリティ基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、低モビリティ基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 The control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cells when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 10, the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the low mobility criterion in any of the following cases. You can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the low mobility criterion unless any of the following cases apply.
　インター周波数ＮＲキャリアでのＥＭＲ（Ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ　Ｒａｄｉａｔｉｏｎ）測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｂ１１）ＵＥ１００に低モビリティ基準が設定され（すなわち、ＵＥ１００が低モビリティ情報を受信し）、かつ低モビリティ基準が満たされる場合、又は
　（ｂ１２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されてなく（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ｂ１３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ低モビリティ基準のみが満たされる場合
　（ｂ１４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 When the EMR (Electromagnetic Radiation) measurement timer (specifically, the T331 timer) on the inter-frequency NR carrier is not running, and (b11) a low mobility criterion is set in the UE 100 (that is, the UE 100 low mobility information), and if the low mobility criteria are satisfied, or (b12) low mobility criteria and cell edge criteria are set to the UE 100 (i.e., the UE 100 receives the low mobility information and cell edge information), And if the combination information is not set (that is, the combination information is not received), and only the low mobility criterion is satisfied (b13) The low mobility criterion and the stationary criterion are set for the UE 100 (that is, if the UE 100 is low mobility information and stationary information), and only the low mobility criterion is satisfied (b14) the low mobility criterion, the stationary criterion and the stationary cell edge criterion are set to the UE 100 (that is, the UE 100 receives the low mobility information, the stationary information and stationary cell edge information is received) and only the low mobility criterion is met
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、上述と同様に、各間隔を、通常測定における各間隔よりも広くしてよい。 In this case, the control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
　また、ＵＥ１００の制御部１４０は、以下のように緩和基準がＵＥ１００に設定されている場合、インター周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図１１に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、静止基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 In addition, the control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cells when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 11, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary reference in any of the following cases. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary reference unless any of the following cases apply.
　インター周波数ＮＲキャリアでのＥＭＲ測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｂ２１）ＵＥ１００に静止基準が設定され（すなわち、ＵＥ１００が静止情報を受信し）、かつ静止基準が満たされる場合、又は
　（ｂ２２）ＵＥ１００に静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合
　（ｂ２３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ｂ２４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 When the timer for EMR measurement on the inter-frequency NR carrier (specifically, the T331 timer) is not running, and ), and the stationary criterion is satisfied, or (b22) the stationary criterion and the stationary cell edge criterion are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information), and the low mobility criterion (b23) low mobility criteria and stationary criteria are set to UE 100 (i.e., UE 100 is low mobility information and receive stationary information) and, regardless of whether the low mobility criteria are met, if the stationary criteria are met (b24) low mobility criteria, stationary criteria and stationary cell edge criteria are set in the UE 100 (That is, the UE 100 receives low mobility information, stationary information and stationary cell edge information), and regardless of whether the low mobility criteria are met, the stationary criteria are met without the stationary cell edge criteria being met. if it is
　この場合、図１２及び図１３に示すように、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」又は「Ｓｑｕａｌ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」が満たされる場合、ＵＥ１００の制御部１４０は、第２緩和測定として、無線信号の検出間隔（Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｅｒ）を第１緩和測定における検出間隔よりも広くしてよく、無線信号の測定間隔（Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｅｒ）を第１緩和測定における測定間隔よりも広くしてよく、無線品質の評価間隔（Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｅｒ）を第１緩和測定における評価間隔よりも広くしてよい。図１２に示すように、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」又は「Ｓｑｕａｌ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」が満たされる場合、（ｂ２１）から（ｂ２４）のケースでは、Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｅｒ、Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｅｒ、Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｅｒを除いて、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）のクラス４．２．２．４（すなわち、Ｍｅａｓｕｒｅｍｅｎｔｓ　ｏｆ　ｉｎｔｅｒ－ｆｒｅｑｕｅｎｃｙ　ＮＲ　ｃｅｌｌｓ）に規定された要件を適用してよい。ＵＥ１００の制御部１４０は、各間隔を、第１緩和測定における各間隔のＪ２倍にしてよい。Ｊ２は、Ｋ１（＝３）より大きい値であってよい。 In this case, as shown in FIGS. 12 and 13, the control unit 140 of the UE 100, if "Srxlev ≤ S nonIntraSearchP " or "Squal ≤ S nonIntraSearchQ " is satisfied, the control unit 140 of the UE 100, as the second relaxation measurement , the radio signal detection interval (T detect, NR_Inter ) may be wider than the detection interval in the first relaxation measurement, and the radio signal measurement interval (T measure, NR_Inter ) may be wider than the measurement interval in the first relaxation measurement. and the radio quality evaluation interval (T evaluate, NR_Inter ) may be wider than the evaluation interval in the first relaxation measurement. As shown in FIG. 12 , when “Srxlev ≤ S nonIntraSearchP ” or “Squal ≤ S nonIntraSearchQ ” is satisfied, in the cases of (b21) to (b24), the control unit 140 of the UE 100 determines T detect, NR_Inter , T measure , NR_Inter , T evaluate, NR_Inter , the requirements specified in class 4.2.2.4 (i.e., Measurements of inter-frequency NR cells) of the 3GPP technical specification (specifically, TS38.133) may apply. The control unit 140 of the UE 100 may make each interval J2 times as large as each interval in the first relaxation measurement. J2 may be a value greater than K1 (=3).
　なお、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　＞　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」及び「Ｓｑｕａｌ　＞　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」を満たす場合であって、ＵＥ１００に「ｈｉｇｈＰｒｉｏｒｉｔｙＭｅａｓＲｅｌａｘ」が設定されている場合、少なくとも所定期間（Ｋ２＊Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈ）毎に高優先度のインター周波数をサーチする。Ｋ２は、６０である。Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈは、（６０　＊　Ｎｌａｙｅｒｓ）秒である。Ｎｌａｙｅｒｓは、システム情報でブロードキャストされる優先度の高いＮＲおよびＥ－ＵＴＲＡキャリア周波数の総数である。 In addition, the control unit 140 of the UE 100, when "Srxlev>S nonIntraSearchP " and "Squal>S nonIntraSearchQ " are satisfied and "highPriorityMeasRelax" is set in the UE 100, at least a predetermined period (K2* Thigher_priority_search ) High priority inter-frequency is searched every time. K2 is 60. T higher_priority_search is (60*N layers ) seconds. N layers is the total number of high priority NR and E-UTRA carrier frequencies broadcast in system information.
　ＵＥ１００の制御部１４０は、それ以外の場合であって、ＵＥ１００に「ｈｉｇｈＰｒｉｏｒｉｔｙＭｅａｓＲｅｌａｘ」が設定されていない場合、少なくとも所定期間（Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈ）毎に高優先度のインター周波数をサーチする。 Otherwise, when "highPriorityMeasRelax" is not set in the UE 100, the control unit 140 of the UE 100 searches for a high-priority inter-frequency at least every predetermined period (T higher_priority_search ).
　また、図１４に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止中セル端基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、静止中セル端基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 Further, as shown in FIG. 14, in any of the following cases, the control unit 140 of the UE 100 selects to perform the second relaxation measurement for the inter-frequency NR cell as the measurement based on the stationary cell edge criteria. you can On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-frequency NR cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply.
　インター周波数ＮＲキャリアでのＥＭＲ測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｂ３１）ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）、かつ、両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合、又は
　（ｂ３２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）かつ両方の基準が満たされている場合であって、かつ、ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）かつ両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合 When the timer for EMR measurement on the inter-frequency NR carrier (specifically, the T331 timer) is not running, and (b31) the stationary reference and the stationary cell edge reference are set in the UE 100 (i.e. , UE 100 is receiving stationary information and stationary cell edge information), and when both criteria are satisfied, a predetermined time has elapsed since the last measurement for cell reselection is performed If not, or (b32) low mobility criteria and cell edge criteria are set in the UE 100 (i.e., the UE 100 receives low mobility information and cell edge information) and both criteria are met And, the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information) and both criteria are satisfied , if the time has not passed since the last measurement for cell reselection
　この場合、図１４に示すように、ＵＥ１００の制御部１４０は、第２緩和測定として、検出間隔（Ｔｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｅｒ）、測定間隔（Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｅｒ）、及び評価間隔（Ｔｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｅｒ）で測定を実行しなくてよい。ＵＥ１００の制御部１４０は、第２緩和測定として、所定期間、測定を実行しなくてよい。図１４に示すように、（ｂ３１）及び（ｂ３２）のカースでは、ＵＥ１００は、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）の表４．２．２．４－１で規定されたＴｄｅｔｅｃｔ，ＮＲ＿Ｉｎｔｒａ、Ｔｍｅａｓｕｒｅ，ＮＲ＿Ｉｎｔｒａ及びＴｅｖａｌｕａｔｅ，ＮＲ＿Ｉｎｔｒａを満たす必要はない。 In this case, as shown in FIG. 14, the control unit 140 of the UE 100 uses the second relaxation measurement as the detection interval (T detect, NR_Inter ), the measurement interval (T measure, NR_Inter ), and the evaluation interval (T evaluate, NR_Inter ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period. As shown in FIG. 14, in the curses (b31) and (b32), the UE 100 is defined in Table 4.2.2.4-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, NR_Intra , T measure, NR_Intra and T evaluate, NR_Intra .
　第３に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてインター無線アクセス技術（Ｒａｄｉｏ　Ａｃｃｅｓｓ　Ｔｅｃｈｎｏｌｏｇｙ：ＲＡＴ）セル（以下、インターＲＡＴ　Ｅ－ＵＴＲＡＮ（Ｅｖｏｌｖｅｄ　Ｕｎｉｖｅｒｓａｌ　Ｔｅｒｒｅｓｔｒｉａｌ　Ｒａｄｉｏ　Ａｃｃｅｓｓ　Ｎｅｔｗｏｒｋ）セルを例に挙げて説明する）に対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 Third, the control unit 140 of the UE 100 uses an inter-radio access technology (RAT) cell (hereinafter referred to as an inter-RAT E-UTRAN (Evolved Universal Terrestrial Radio Access Network) cell as an example of another cell different from the serving cell. A case will be described in which it is selected whether or not to perform a relaxed measurement that relaxes the measurement of the radio quality for the radio quality measurement for the wireless communication system (described later).
　ＵＥ１００の制御部１４０は、以下のように緩和基準がＵＥ１００に設定されている場合、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図１５に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、低モビリティ基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行することを選択してよいＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、低モビリティ基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行しないことを選択する。 The control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement to relax the radio quality measurement for the inter-RATE-UTRAN cell when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 15, the control unit 140 of the UE 100 performs the first mitigation measurement on the inter-RATE-UTRAN cell as a measurement based on the low mobility criteria in any of the following cases: The control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-RATE E-UTRAN cell as a measurement based on the low mobility criteria unless any of the following cases apply: .
　インターＲＡＴ　Ｅ－ＵＴＲＡＮでのＥＭＲ測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｃ１１）ＵＥ１００に低モビリティ基準が設定され（すなわち、ＵＥ１００が低モビリティ情報を受信し）、かつ低モビリティ基準が満たされる場合、又は
　（ｃ１２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されてなく（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ｃ１３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ低モビリティ基準のみが満たされる場合
　（ｃ１４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 When the timer for EMR measurement in the inter-RAT E-UTRAN (specifically, the T331 timer) is not running, and (c11) the low mobility criterion is set in the UE 100 (that is, the UE 100 receives the low mobility information ), and the low mobility criterion is satisfied, or (c12) the low mobility criterion and the cell edge criterion are set in the UE 100 (that is, the UE 100 receives the low mobility information and the cell edge information), and the combination information is not set (i.e., the combination information is not received) and only the low mobility criterion is satisfied (c13) the low mobility criterion and the stationary criterion are set for the UE 100 (i.e., the UE 100 receives the low mobility information and the stationary information), and only the low mobility criterion is satisfied (c14) The low mobility criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 receives the low mobility information, the stationary information and the stationary cell edge information) and only the low mobility criteria are met
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、上述と同様に、各間隔を、通常測定における各間隔よりも広くしてよい。 In this case, the control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
　また、ＵＥ１００の制御部１４０は、以下のように緩和基準がＵＥ１００に設定されている場合、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択する。具体的には、図１６に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、静止基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行しないことを選択する。 In addition, the control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement to relax the radio quality measurement for the inter-RATE-UTRAN cell when the relaxation criteria are set in the UE 100 as follows. Specifically, as shown in FIG. 16, the control unit 140 of the UE 100 selects to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary standard in any of the following cases: You may choose. On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the static criteria unless any of the following cases apply.
　インターＲＡＴ　Ｅ－ＵＴＲＡＮでのＥＭＲ測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｃ２１）ＵＥ１００に静止基準が設定され（すなわち、ＵＥ１００が静止情報を受信し）、かつ静止基準が満たされる場合、
　（ｃ２２）ＵＥ１００に静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合
　（ｃ２３）ＵＥ１００に低モビリティ基準及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及び静止情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ｃ２４）ＵＥ１００に低モビリティ基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、静止情報及び静止中セル端情報を受信し）、かつ、低モビリティ基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 When the timer for EMR measurement in the inter-RAT E-UTRAN (specifically, the T331 timer) is not running, and (c21) the stationary reference is set in the UE 100 (that is, the UE 100 receives stationary information ) and the quiescence criterion is met,
(c22) Stationary criteria and stationary cell edge criteria are set in the UE 100 (that is, the UE 100 receives stationary information and stationary cell edge information), and regardless of whether the low mobility criteria are met, stationary When the stationary criteria are met without the middle cell edge criteria being met (c23) low mobility criteria and stationary criteria are set in the UE 100 (that is, the UE 100 receives low mobility information and stationary information), and low mobility Regardless of whether the criteria are met, if the stationary criteria are met (c24) Low mobility criteria, stationary criteria, and stationary cell edge criteria are set for UE 100 (that is, UE 100 uses low mobility information, stationary information and stationary cell edge information) and the stationary criteria are met without the stationary cell edge criteria being met, regardless of whether the low mobility criteria are met.
　この場合、図１７及び図１８に示すように、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」又は「Ｓｑｕａｌ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」が満たされる場合、ＵＥ１００の制御部１４０は、第２緩和測定として、無線信号の検出間隔（Ｔｄｅｔｅｃｔ，ＥＵＴＲＡＮ）を第１緩和測定における検出間隔よりも広くしてよく、無線信号の測定間隔（Ｔｍｅａｓｕｒｅ，ＥＵＴＲＡＮ）を第１緩和測定における測定間隔よりも広くしてよく、無線品質の評価間隔（Ｔｅｖａｌｕａｔｅ，ＥＵＴＲＡＮ）を第１緩和測定における評価間隔よりも広くしてよい。図１７に示すように、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」又は「Ｓｑｕａｌ　≦　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」が満たされる場合、（ｃ２１）から（ｃ２４）のケースでは、Ｔｄｅｔｅｃｔ，ＥＵＴＲＡＮ、Ｔｍｅａｓｕｒｅ，ＥＵＴＲＡＮ、Ｔｅｖａｌｕａｔｅ，ＥＵＴＲＡＮを除いて、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）のクラス４．２．２．５（すなわち、Ｍｅａｓｕｒｅｍｅｎｔｓ　ｏｆ　ｉｎｔｅｒ－ＲＡＴ　Ｅ－ＵＴＲＡＮ　ｃｅｌｌｓ）に規定された要件を適用してよい。ＵＥ１００の制御部１４０は、各間隔を、第１緩和測定における各間隔のＪ２倍にしてよい。Ｊ２は、Ｋ１（＝３）より大きい値であってよい。 In this case, as shown in FIGS. 17 and 18, the control unit 140 of the UE 100, when "Srxlev ≤ S nonIntraSearchP " or "Squal ≤ S nonIntraSearchQ " is satisfied, the control unit 140 of the UE 100 performs the second relaxation measurement. , the radio signal detection interval (T detect, EUTRAN ) may be wider than the detection interval in the first relaxation measurement, and the radio signal measurement interval (T measure, EUTRAN ) may be wider than the measurement interval in the first relaxation measurement. and the radio quality evaluation interval (T evaluate, EUTRAN ) may be wider than the evaluation interval in the first relaxation measurement. As shown in FIG. 17 , when “Srxlev≦S nonIntraSearchP ” or “Squal≦S nonIntraSearchQ ” is satisfied, in cases from (c21) to (c24), the control unit 140 of the UE 100 determines T detect, EUTRAN , T measure , EUTRAN , T evaluate, and EUTRAN are specified in class 4.2.2.5 (i.e., Measurements of inter-RAT E-UTRAN cells) of the 3GPP technical specification (specifically, TS38.133). requirements may apply. The control unit 140 of the UE 100 may make each interval J2 times as large as each interval in the first relaxation measurement. J2 may be a value greater than K1 (=3).
　なお、ＵＥ１００の制御部１４０は、「Ｓｒｘｌｅｖ　＞　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＰ」及び「Ｓｑｕａｌ　＞　ＳｎｏｎＩｎｔｒａＳｅａｒｃｈＱ」を満たす場合であって、ＵＥ１００に「ｈｉｇｈＰｒｉｏｒｉｔｙＭｅａｓＲｅｌａｘ」が設定されている場合、少なくとも所定期間（Ｋ２＊Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈ）毎に高優先度のＥ－ＵＴＲＡインターＲＡＴ周波数をサーチする。Ｋ２は、６０である。Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈは、（６０　＊　Ｎｌａｙｅｒｓ）秒である。Ｎｌａｙｅｒｓは、システム情報でブロードキャストされる優先度の高いＮＲおよびＥ－ＵＴＲＡキャリア周波数の総数である。 In addition, the control unit 140 of the UE 100, when "Srxlev>S nonIntraSearchP " and "Squal>S nonIntraSearchQ " are satisfied and "highPriorityMeasRelax" is set in the UE 100, at least a predetermined period (K2* Thigher_priority_search ) High priority E-UTRA inter-RAT frequencies are searched every time. K2 is 60. T higher_priority_search is (60*N layers ) seconds. N layers is the total number of high priority NR and E-UTRA carrier frequencies broadcast in system information.
　ＵＥ１００の制御部１４０は、それ以外の場合であって、ＵＥ１００に「ｈｉｇｈＰｒｉｏｒｉｔｙＭｅａｓＲｅｌａｘ」が設定されていない場合、少なくとも所定期間（Ｔｈｉｇｈｅｒ＿ｐｒｉｏｒｉｔｙ＿ｓｅａｒｃｈ）毎に高優先度のＥ－ＵＴＲＡインターＲＡＴ周波数をサーチする。 In other cases, when "highPriorityMeasRelax" is not set in the UE 100, the control unit 140 of the UE 100 searches for a high-priority E-UTRA inter-RAT frequency at least every predetermined period (T higher_priority_search ).
　また、図１９に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、静止中セル端基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、静止中セル端基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行しないことを選択する。 Also, as shown in FIG. 19, in any of the following cases, the control unit 140 of the UE 100 performs the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary cell edge criteria. You may choose. On the other hand, the control unit 140 of the UE 100 selects not to perform the second relaxation measurement on the inter-RATE-UTRAN cell as the measurement based on the stationary cell edge criteria unless any of the following cases apply: .
　インターＲＡＴ　Ｅ－ＵＴＲＡＮキャリアでのＥＭＲ測定用のタイマ（具体的にはＴ３３１タイマ）が稼働してない場合であって、かつ
　（ｃ３１）ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）、かつ、両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合、又は
　（ｃ３２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）かつ両方の基準が満たされている場合であって、かつ、ＵＥ１００に静止基準及び静止中セル端基準が設定されており（すなわち、ＵＥ１００が静止情報及び静止中セル端情報を受信しており）かつ両方の基準が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していない場合 When the timer for EMR measurement on the inter-RAT E-UTRAN carrier (specifically, the T331 timer) is not running, and (c31) the stationary reference and stationary cell edge reference are set in the UE 100 (That is, the UE 100 is receiving stationary information and stationary cell edge information), and when both criteria are satisfied, a predetermined time since the last measurement for cell reselection has not elapsed, or (c32) low mobility criteria and cell edge criteria are set in UE 100 (i.e., UE 100 receives low mobility information and cell edge information) and both criteria are met And when the stationary reference and the stationary cell edge reference are set in the UE 100 (that is, the UE 100 receives the stationary information and the stationary cell edge information) and both criteria are satisfied and the specified time has not elapsed since the last measurement for cell reselection
　この場合、図１９に示すように、ＵＥ１００の制御部１４０は、第２緩和測定として、検出間隔（Ｔｄｅｔｅｃｔ，ＥＵＴＲＡＮ）、測定間隔（Ｔｍｅａｓｕｒｅ，ＥＵＴＲＡＮ）、及び評価間隔（Ｔｅｖａｌｕａｔｅ，ＥＵＴＲＡＮ）で測定を実行しなくてよい。ＵＥ１００の制御部１４０は、第２緩和測定として、所定期間、測定を実行しなくてよい。図１９に示すように、（ｃ３１）及び（ｃ３２）のカースでは、ＵＥ１００は、３ＧＰＰ技術仕様書（具体的には、ＴＳ３８．１３３）の表４．２．２．５－１で規定されたＴｄｅｔｅｃｔ，ＥＵＴＲＡＮ、Ｔｍｅａｓｕｒｅ，ＥＵＴＲＡＮ及びＴｅｖａｌｕａｔｅ，ＥＵＴＲＡＮを満たす必要はない。 In this case, as shown in FIG. 19, the control unit 140 of the UE 100 uses, as the second relaxation measurement, a detection interval (T detect, EUTRAN ), a measurement interval (T measure, EUTRAN ), and an evaluation interval (T evaluate, EUTRAN ). You do not have to perform the measurement with As the second relaxation measurement, the control unit 140 of the UE 100 does not have to perform measurement for a predetermined period. As shown in FIG. 19, in the curses (c31) and (c32), the UE 100 is defined in Table 4.2.2.5-1 of the 3GPP technical specifications (specifically, TS38.133) It is not necessary to satisfy T detect, EUTRAN , T measure, EUTRAN and T evaluate, EUTRAN .
　以上のように、ＵＥ１００は、緩和基準に基づいて、緩和測定を実行するか否かを選択する。制御部１４０は、第１緩和基準と第２緩和基準とがＵＥ１００に設定されている場合であっても、第１緩和基準のみが満たされた場合には、第１緩和測定を実行することを選択する。 As described above, the UE 100 selects whether or not to perform relaxation measurement based on the relaxation criteria. Even if the first relaxation criterion and the second relaxation criterion are set in the UE 100, the control unit 140 performs the first relaxation measurement when only the first relaxation criterion is satisfied. select.
　ステップＳ１０３において、ＵＥ１００の制御部１４０は、緩和測定を実行する。ＵＥ１００の制御部１４０は、第１緩和測定を実行することを選択した場合、第１緩和測定を実行する。ＵＥ１００の制御部１４０は、第２緩和測定を実行することを選択した場合、第２緩和測定を実行する。 In step S103, the control unit 140 of the UE 100 performs relaxation measurement. When the control unit 140 of the UE 100 selects to perform the first relaxation measurement, it performs the first relaxation measurement. When the control unit 140 of the UE 100 selects to perform the second relaxation measurement, it performs the second relaxation measurement.
　以上によれば、制御部１４０は、第１緩和基準と第２緩和基準とがＵＥ１００に設定されている場合であっても、第１緩和基準のみが満たされた場合には、第１緩和測定を実行することを選択するため、第２緩和測定が導入された場合であっても、ＵＥ１００が緩和測定を適切に実行できる。ＵＥ１００は、第１緩和測定を実行することで、省電力化及びバッテリー寿命向上を更に図ることができる。 According to the above, even when the first mitigation criterion and the second mitigation criterion are set in the UE 100, the control unit 140 performs the first mitigation measurement when only the first mitigation criterion is satisfied. , the UE 100 can appropriately perform the relaxation measurement even when the second relaxation measurement is introduced. By executing the first relaxation measurement, the UE 100 can further reduce power consumption and improve battery life.
　また、第１緩和基準は、ＵＥ１００が低モビリティ状態であることを検知するための低モビリティ基準を含んでよい。これにより、ＵＥ１００は、第２緩和基準が満たされない場合であっても、低モビリティ状態である場合、ＵＥ１００が緩和測定を適切に実行できる。ＵＥ１００は、第１緩和測定を実行することで、省電力化及びバッテリー寿命向上を更に図ることができる。 Also, the first mitigation criterion may include a low mobility criterion for detecting that the UE 100 is in a low mobility state. This allows the UE 100 to appropriately perform the mitigation measurement when the UE 100 is in the low mobility state even when the second mitigation criterion is not satisfied. By executing the first relaxation measurement, the UE 100 can further reduce power consumption and improve battery life.
　また、緩和基準情報がセル端情報と静止情報とを含む場合、制御部１４０は、セル端情報を無視してよい。例えば、ＵＥ１００が静止状態にある場合に（リリース１６で導入された）セル端基準ではなく（リリース１７で導入される）静止中セル端基準に基づき判定する動作が実行されるケースでは、ＵＥ１００は、セル端情報を管理する処理を省略でき、ＵＥ１００の処理負荷を低減できる。 Also, when the relaxation criterion information includes cell edge information and stationary information, the control unit 140 may ignore the cell edge information. For example, when the UE 100 is in a stationary state (introduced in Release 16) rather than the cell edge criteria (introduced in Release 16) in the case where the determination operation is performed based on the stationary cell edge criteria (introduced in Release 17), the UE 100 , the process of managing cell edge information can be omitted, and the processing load of the UE 100 can be reduced.
　また、緩和基準情報は低モビリティ情報と静止情報とを含んでよい。制御部１４０は、低モビリティ基準のみが満たされた場合には、第１緩和測定を実行することを選択してよい。これにより、静止基準基づく第２緩和測定が導入された場合であっても、ＵＥ１００が緩和測定を適切に実行できる。 Also, the mitigation criterion information may include low mobility information and stationary information. Control unit 140 may choose to perform the first mitigation measurement if only the low mobility criterion is met. This allows the UE 100 to appropriately perform the relaxation measurement even when the stationary reference-based second relaxation measurement is introduced.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。これにより、静止中セル端基づく第２緩和測定が導入された場合であっても、ＵＥ１００が緩和測定を適切に実行できる。 In addition, the relaxation criterion information may further include stationary cell edge information. This allows the UE 100 to appropriately perform the relaxation measurement even when the second relaxation measurement based on the stationary cell edge is introduced.
　また、セル端情報及び低モビリティ情報の少なくとも一方と、静止情報と、を緩和基準情報が含む場合、制御部１４０は、静止基準が満たされたとき、セル端基準及び低モビリティ基準の少なくとも一方が満たされていても、第２緩和測定を実行する。これにより、静止基準が満たされたときには、第１緩和測定よりも測定が緩和されている第２緩和測定の実行を選択することで、ＵＥ１００は、緩和測定を適切に実行でき、省電力化及びバッテリー寿命向上を更に図ることができる。 Further, when the mitigation criterion information includes at least one of the cell-edge information and the low-mobility information and the stationary information, the control unit 140 determines that when the stationary criterion is satisfied, at least one of the cell-edge criterion and the low-mobility criterion is Even if satisfied, perform a second relaxation measurement. Thus, when the stationary criterion is satisfied, by selecting the execution of the second relaxation measurement in which the measurement is more relaxed than the first relaxation measurement, the UE 100 can appropriately perform the relaxation measurement, saving power and It is possible to further improve the battery life.
　また、制御部１４０は、緩和基準情報がセル端情報と静止情報とを含む場合、セル端情報を無視してよい。これにより、ＵＥ１００は、緩和基準情報が静止情報を含む場合に、セル端情報を管理する処理を省略したり、セル端基準に基づく判定を省略したりでき、ＵＥ１００の処理負荷を低減できる。 Also, the control unit 140 may ignore the cell edge information when the mitigation criterion information includes the cell edge information and the stationary information. As a result, when the relaxation criterion information includes stationary information, the UE 100 can omit the process of managing the cell edge information or omit the determination based on the cell edge criterion, thereby reducing the processing load of the UE 100.
　また、緩和基準情報は、第１緩和基準としてユーザ装置が低モビリティ状態であることを検知するための低モビリティ基準を示す低モビリティ情報と、第２緩和基準としてユーザ装置が静止状態にあることを検知するための基準を示す静止情報と、を含んでよい。制御部１４０は、静止基準が満たされた場合、低モビリティ基準が満たされたか否かにかかわらず、第２緩和測定を実行することを選択してよい。これにより、静止基準が満たされたときには、低モビリティ基準に基づく判定を省略でき、ＵＥ１００の処理負荷を低減できる。 In addition, the mitigation criterion information includes low mobility information indicating a low mobility criterion for detecting that the user equipment is in a low mobility state as a first mitigation criterion and indicating that the user equipment is in a stationary state as a second mitigation criterion. and static information that indicates criteria for detection. Control unit 140 may choose to perform the second mitigation measurement if the stationary criterion is met, whether or not the low mobility criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the low mobility criterion can be omitted, and the processing load of the UE 100 can be reduced.
　また、緩和基準情報は、第２緩和基準としてユーザ装置が静止中にセル端にいないことを検知するための静止中セル端基準を示す静止中セル端情報をさらに含んでよい。制御部１４０は、静止情報が満たされ且つ静止中セル端基準が満たされない場合、第２緩和測定として、無線信号の検出間隔を第１緩和測定における検出間隔よりも広くし、無線信号の測定間隔を第１緩和測定における測定間隔よりも広くし、無線品質の評価間隔を第１緩和測定における評価間隔よりも広くしてよい。これにより、ＵＥ１００は、静止情報が満たされたとしても、静止中セル端基準が満たされない場合には、第２緩和測定として、測定の実行を省略せずに、ある程度の広い間隔で測定を行うことで、省電力化及びバッテリー寿命向上を更に図りつつも、緩和測定を適切に実行できる。 In addition, the relaxation criterion information may further include resting cell edge information indicating a resting cell edge criterion for detecting that the user equipment is not at the cell edge while resting as a second relaxation criterion. When the stationary information is satisfied and the stationary cell edge criteria are not satisfied, the control unit 140 widens the radio signal detection interval as the second relaxation measurement than the detection interval in the first relaxation measurement, and increases the radio signal measurement interval. may be set wider than the measurement interval in the first relaxation measurement, and the radio quality evaluation interval may be set wider than the evaluation interval in the first relaxation measurement. As a result, even if the stationary information is satisfied, the UE 100 does not omit the execution of the measurement as the second relaxation measurement when the stationary cell edge criterion is not satisfied, and performs measurements at relatively wide intervals. Thus, the relaxation measurement can be properly performed while further saving power and improving battery life.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。制御部１４０は、静止基準と静止中セル端基準との両方が満たされた場合であって、測定を最後に実行してから所定時間が経過していない場合、第２緩和測定として、測定を実行しない制御を行ってよい。これにより、ＵＥ１００は、静止状態であってかつセル端に位置しないため、短時間で無線品質が急激に低下することが想定されない。従って、このような場合には、ＵＥ１００が、測定を実行しない制御を行うことで、省電力化及びバッテリー寿命向上を更に図ることができる。 In addition, the relaxation criterion information may further include stationary cell edge information. If both the stationary criterion and the stationary cell edge criterion are satisfied and a predetermined time has not passed since the last measurement, the control unit 140 performs the measurement as a second relaxation measurement. Control not to execute may be performed. Accordingly, since the UE 100 is in a stationary state and is not located at the cell edge, it is not assumed that the radio quality will suddenly deteriorate in a short period of time. Therefore, in such a case, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。制御部１４０は、低モビリティ基準とセル端基準との両方が満たされ、且つ静止基準と静止中セル端基準との両方が満たされた場合であって、測定を最後に実行してから所定時間が経過していない場合、第２緩和測定として、測定を実行しない制御を行ってよい。このような場合に、短時間で無線品質が急激に低下することが想定されないため、ＵＥ１００が、測定を実行しない制御を行うことで、省電力化及びバッテリー寿命向上を更に図ることができる。 In addition, the relaxation criterion information may further include stationary cell edge information. Control unit 140, when both the low mobility criterion and the cell edge criterion are satisfied, and both the stationary criterion and the stationary cell edge criterion are satisfied, a predetermined time after the last measurement is performed has not elapsed, the second relaxation measurement may be controlled so as not to perform the measurement. In such a case, since it is not assumed that the radio quality will suddenly deteriorate in a short time, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。制御部１４０は、低モビリティ基準とセル端基準とが満たされたか否かにかかわらず、静止基準と静止中セル端基準との両方が満たされた場合であって、測定を最後に実行してから所定時間が経過していない場合、第２緩和測定として、測定を実行しない制御を行ってよい。このような場合に、短時間で無線品質が急激に低下することが想定されないため、ＵＥ１００が、測定を実行しない制御を行うことで、省電力化及びバッテリー寿命向上を更に図ることができる。さらに、ＵＥ１００は、静止基準と静止中セル端基準とに基づく判定を、低モビリティ基準とセル端基準とに基づく判定よりも優先することで、静止基準と静止中セル端基準との両方が満たされた場合、低モビリティ基準とセル端基準とに基づく判定を省略できる。これにより、省電力化及びバッテリー寿命向上を更に図ることができる。 In addition, the relaxation criterion information may further include stationary cell edge information. Control unit 140 performs the measurement last when both the stationary and stationary cell edge criteria are met, regardless of whether the low mobility criteria and the cell edge criteria are met. If the predetermined time has not elapsed since , the second relaxation measurement may be controlled so as not to perform the measurement. In such a case, since it is not assumed that the radio quality will suddenly deteriorate in a short time, the UE 100 controls not to perform measurement, thereby further saving power and improving battery life. Furthermore, the UE 100 prioritizes the determination based on the stationary criteria and the stationary cell edge criteria over the determination based on the low mobility criteria and the cell edge criteria, so that both the stationary criteria and the stationary cell edge criteria are satisfied. If so, the decision based on the low mobility criterion and the cell edge criterion can be omitted. As a result, power saving and battery life can be further improved.
　（２）第２動作例　
　図２０から図２８を参照して、第２動作例について、上述の動作例との相違点を主として説明する。上述の第１動作例では、ＵＥ１００の制御部１４０がセル端情報を無視するケースを説明したが、本動作例では、制御部１４０がセル端情報を無視しないケースについて説明する。 (2) Second operation example
With reference to FIGS. 20 to 28, the second operation example will be described mainly with respect to differences from the above-described operation example. In the first operation example described above, the case where the control unit 140 of the UE 100 ignores the cell edge information has been explained, but in this operation example, a case where the control unit 140 does not ignore the cell edge information will be explained.
　第１に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてイントラ周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 First, a case will be described in which the control unit 140 of the UE 100 selects whether or not to perform relaxation measurement for relaxing radio quality measurement for intra-frequency NR cells as other cells different from the serving cell.
　図２０に示すように、ＵＥ１００の制御部１４０は、上述の（ａ１１）から（ａ１４）の場合に加えて、以下のいずれかの場合に、低モビリティ基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合を含む（ａ１１）から（ａ１６）に該当しなければ、低モビリティ基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 As shown in FIG. 20, the control unit 140 of the UE 100, in addition to the above (a11) to (a14), in any of the following cases, as a measurement based on the low mobility criteria, for intra-frequency NR cells You may choose to perform a first relaxation measurement. On the other hand, if the control unit 140 of the UE 100 does not correspond to (a11) to (a16) including any of the following cases, as a measurement based on the low mobility standard, perform the first relaxation measurement for the intra-frequency NR cell choose not to.
　（ａ１５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ａ１６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 (a15) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e. , combination information is not received), and only the low mobility criterion is satisfied (a16) The low mobility criterion, the cell edge criterion, the stationary criterion, and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 has the low mobility information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
　また、図２１に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、セル端基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、セル端基準に基づく測定として、イントラ周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 Also, as shown in FIG. 21, in any of the following cases, the control unit 140 of the UE 100 may select to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the cell edge criteria. . On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the intra-frequency NR cell as the measurement based on the cell edge criteria unless any of the following cases apply.
　（ａ４１）ＵＥ１００にセル端基準が設定され（すなわち、ＵＥ１００がセル端情報を受信し）、かつセル端基準が満たされる場合、又は
　（ａ４２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ａ４３）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ａ４４）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつセル端基準のみが満たされる場合 (a41) when the cell edge criteria are set in the UE 100 (that is, the UE 100 receives the cell edge information) and the cell edge criteria are satisfied, or (a42) the low mobility criteria and the cell edge criteria are set in the UE 100 ( That is, when the UE 100 receives low mobility information and cell edge information) and the combination information is not set (that is, the combination information is not received), and only the cell edge criteria are satisfied (a43) to the UE 100 Low mobility criteria, cell edge criteria, and stationary criteria are set (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e., receiving combination information not), and only the cell edge criteria are satisfied (a44) The low mobility criteria, the cell edge criteria, the stationary criteria and the stationary cell edge criteria are set for the UE 100 (that is, the UE 100 receives the low mobility information, the cell edge criteria , stationary information and stationary cell edge information) and only the cell edge criteria are satisfied
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、上述と同様に、各間隔を、通常測定における各間隔よりも広くしてよい。 In this case, the control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
　また、図２２に示すように、ＵＥ１００の制御部１４０は、上述の（ａ２１）から（ａ２４）の場合に加えて、以下のいずれかの場合に、静止基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合を含む（ａ２１）から（ａ２６）に該当しなければ、静止基準に基づく測定として、イントラ周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 Further, as shown in FIG. 22, the control unit 140 of the UE 100, in addition to the cases of (a21) to (a24) described above, in any of the following cases, as a measurement based on the stationary reference, an intra frequency NR cell You may choose to perform a second relaxation measurement on . On the other hand, if the control unit 140 of the UE 100 does not correspond to (a21) to (a26) including any of the following cases, as a measurement based on the stationary reference, the second relaxation measurement for the intra-frequency NR cell is not performed. choose to
　（ａ２５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ａ２６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 (a25) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (a26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
　第２に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてインター周波数ＮＲセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 Second, a case will be described in which the control unit 140 of the UE 100 selects whether or not to perform relaxation measurement for relaxing the radio quality measurement for the inter-frequency NR cell as another cell different from the serving cell.
　図２３に示すように、ＵＥ１００の制御部１４０は、上述の（ｂ１１）から（ｂ１４）の場合に加えて、以下のいずれかの場合に、低モビリティ基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかを含む（ｂ１１）から（ｂ１６）に該当しなければ、低モビリティ基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 As shown in FIG. 23, the control unit 140 of the UE 100, in addition to the cases of (b11) to (b14) described above, in any of the following cases, as a measurement based on the low mobility criteria, for inter-frequency NR cells You may choose to perform a first relaxation measurement. On the other hand, if the control unit 140 of the UE 100 does not correspond to (b11) to (b16) including any of the following, as a measurement based on the low mobility criteria, do not perform the first relaxation measurement for the inter-frequency NR cell to select.
　（ｂ１５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ｂ１６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 (b15) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , combination information is not received) and only the low mobility criterion is satisfied (b16) The low mobility criterion, the cell edge criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 is information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
　また、図２４に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、セル端基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、セル端基準に基づく測定として、インター周波数ＮＲセルに対する第１緩和測定を実行しないことを選択する。 Further, as shown in FIG. 24, in any of the following cases, the control unit 140 of the UE 100 may select to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the cell edge criteria. . On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement on the inter-frequency NR cell as the measurement based on the cell edge criteria unless any of the following cases apply.
　（ｂ４１）ＵＥ１００にセル端基準が設定され（すなわち、ＵＥ１００がセル端情報を受信し）、かつセル端基準が満たされる場合、又は
　（ｂ４２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ｂ４３）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ｂ４４）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつセル端基準のみが満たされる場合 (b41) If the cell edge criteria are set in the UE 100 (that is, the UE 100 receives the cell edge information) and the cell edge criteria are satisfied, or (b42) the low mobility criteria and the cell edge criteria are set in the UE 100 ( That is, when the UE 100 receives low mobility information and cell edge information) and the combination information is not set (that is, the combination information is not received), and only the cell edge criteria are satisfied (b43) to the UE 100 Low mobility criteria, cell edge criteria, and stationary criteria are set (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e., receiving combination information not), and only the cell edge criteria are satisfied (b44) The low mobility criteria, the cell edge criteria, the stationary criteria and the stationary cell edge criteria are set for the UE 100 (that is, the UE 100 has the low mobility information, the cell edge criteria , stationary information and stationary cell edge information) and only the cell edge criteria are satisfied
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、上述と同様に、各間隔を、通常測定における各間隔よりも広くしてよい。 In this case, the control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
　また、図２５に示すように、ＵＥ１００の制御部１４０は、上述の（ｂ２１）から（ｂ２４）の場合に加えて、以下のいずれかの場合に、静止基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかを含む（ｂ２１）から（ｂ２６）に該当しなければ、静止基準に基づく測定として、インター周波数ＮＲセルに対する第２緩和測定を実行しないことを選択する。 Further, as shown in FIG. 25, the control unit 140 of the UE 100, in addition to the cases of (b21) to (b24) described above, in any of the following cases, as a measurement based on the stationary reference, inter-frequency NR cell You may choose to perform a second relaxation measurement on . On the other hand, if the control unit 140 of the UE 100 does not correspond to (b21) to (b26) including any of the following, as a measurement based on the stationary reference, it is determined not to perform the second relaxation measurement for the inter-frequency NR cell select.
　（ｂ２５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ｂ２６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 (b25) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (b26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
　第３に、ＵＥ１００の制御部１４０が、サービングセルと異なる他セルとしてインターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する無線品質の測定を緩和する緩和測定を実行するか否かを選択するケースについて説明する。 Third, a case will be described in which the control unit 140 of the UE 100 selects whether or not to perform the relaxation measurement for relaxing the radio quality measurement for the inter-RATE-UTRAN cell as another cell different from the serving cell.
　図２６に示すように、ＵＥ１００の制御部１４０は、上述の（ｃ１１）から（ｃ１４）の場合に加えて、以下のいずれかの場合に、低モビリティ基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかを含む（ｃ１１）から（ｃ１６）に該当しなければ、低モビリティ基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行しないことを選択する。 As shown in FIG. 26, in addition to the above-described cases (c11) to (c14), the control unit 140 of the UE 100 performs inter-RATE-UTRAN as a measurement based on the low mobility criteria in any of the following cases: It may be chosen to perform a first relaxation measurement on the cell. On the other hand, the control unit 140 of the UE 100 performs the first mitigation measurement for the inter-RATE-UTRAN cell as a measurement based on the low mobility criteria unless (c11) to (c16) including any of the following apply. choose not to.
　（ｃ１５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準のみが満たされる場合
　（ｃ１６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準のみが満たされる場合 (c15) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , combination information is not received) and only the low mobility criterion is satisfied (c16) The low mobility criterion, the cell edge criterion, the stationary criterion and the stationary cell edge criterion are set for the UE 100 (that is, the UE 100 is set to the low mobility information, cell edge criteria, stationary information and stationary cell edge information) and only the low mobility criteria are met
　また、図２７に示すように、ＵＥ１００の制御部１４０は、以下のいずれかの場合に、セル端基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかの場合に該当しなければ、セル端基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第１緩和測定を実行しないことを選択する。 Also, as shown in FIG. 27, the control unit 140 of the UE 100 selects to perform the first relaxation measurement on the inter-RATE E-UTRAN cell as the measurement based on the cell edge criteria in any of the following cases: you can On the other hand, the control unit 140 of the UE 100 selects not to perform the first relaxation measurement for the inter-RATE-UTRAN cell as the measurement based on the cell edge criteria unless any of the following cases apply.
　（ｃ４１）ＵＥ１００にセル端基準が設定され（すなわち、ＵＥ１００がセル端情報を受信し）、かつセル端基準が満たされる場合、又は
　（ｃ４２）ＵＥ１００に低モビリティ基準及びセル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報及びセル端情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ｃ４３）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつセル端基準のみが満たされる場合
　（ｃ４４）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつセル端基準のみが満たされる場合 (c41) When the cell edge criteria are set in the UE 100 (that is, the UE 100 receives the cell edge information) and the cell edge criteria are satisfied, or (c42) the low mobility criteria and the cell edge criteria are set in the UE 100 ( That is, when the UE 100 receives low mobility information and cell edge information), and the combination information is not set (that is, the combination information is not received), and only the cell edge criteria are satisfied (c43) to the UE 100 Low mobility criteria, cell edge criteria, and stationary criteria are set (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and combination information is not set (i.e., receiving combination information not), and only the cell edge criteria are satisfied (c44) the low mobility criteria, the cell edge criteria, the stationary criteria and the stationary cell edge criteria are set for the UE 100 (that is, the UE 100 has the low mobility information, the cell edge criteria , stationary information and stationary cell edge information) and only the cell edge criteria are satisfied
　この場合、ＵＥ１００の制御部１４０は、第１緩和測定として、上述と同様に、各間隔を、通常測定における各間隔よりも広くしてよい。 In this case, the control unit 140 of the UE 100 may make each interval wider than each interval in normal measurement as the first relaxation measurement, as described above.
　また、図２８に示すように、ＵＥ１００の制御部１４０は、上述の（ｃ２１）から（ｃ２４）の場合に加えて、以下のいずれかの場合に、静止基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行することを選択してよい。一方で、ＵＥ１００の制御部１４０は、以下のいずれかを含む（ｃ２１）から（ｃ２６）に該当しなければ、静止基準に基づく測定として、インターＲＡＴ　Ｅ－ＵＴＲＡＮセルに対する第２緩和測定を実行しないことを選択する。 Further, as shown in FIG. 28, in addition to the above-described cases (c21) to (c24), the control unit 140 of the UE 100 performs inter-RAT E- It may be chosen to perform a second relaxation measurement for the UTRAN cell. On the other hand, the control unit 140 of the UE 100 does not perform the second relaxation measurement on the inter-RATE-UTRAN cell as a measurement based on the stationary standard unless (c21) to (c26) including any of the following apply. choose to
　（ｃ２５）ＵＥ１００に低モビリティ基準、セル端基準、及び静止基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端情報、及び静止情報を受信し）、かつ組み合わせ情報が設定されていない（すなわち、組み合わせ情報を受信していない）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止基準が満たされている場合
　（ｃ２６）ＵＥ１００に低モビリティ基準、セル端基準、静止基準及び静止中セル端基準が設定され（すなわち、ＵＥ１００が低モビリティ情報、セル端基準、静止情報及び静止中セル端情報を受信し）、かつ低モビリティ基準及び／又はセル端基準が満たされたか否かにかかわらず、静止中セル端基準が満たされずに静止基準が満たされている場合 (c25) Low mobility criteria, cell edge criteria, and stationary criteria are set in UE 100 (i.e., UE 100 receives low mobility information, cell edge information, and stationary information), and no combination information is set (i.e. , no combination information is received), and regardless of whether the low mobility criteria and/or the cell edge criteria are met, if the stationary criteria are met (c26) UE 100 low mobility criteria, cell edge criteria , the stationary criteria and the stationary cell edge criteria are set (i.e., the UE 100 receives the low mobility information, the cell edge criteria, the stationary information and the stationary cell edge information), and the low mobility criteria and/or the cell edge criteria are met. If the stationary cell edge criteria are not met and the stationary criteria are met, regardless of whether or not
　以上のように、緩和基準情報は、低モビリティ情報とセル端情報と静止情報と、を含み、且つ組み合わせ情報を含まなくてよい。制御部１４０は、低モビリティ基準のみが満たされた場合には、第１緩和測定を実行することを選択してよい。これにより、ＵＥ１００がセル端基準を無視しない場合であって、第２緩和基準が設定されている場合であっても、ＵＥ１００は、低モビリティ基準に基づいて第１緩和測定を適切に実行できる。 As described above, the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information. Control unit 140 may choose to perform the first mitigation measurement if only the low mobility criterion is met. Thereby, even when the UE 100 does not ignore the cell edge criterion and the second mitigation criterion is set, the UE 100 can appropriately perform the first mitigation measurement based on the low mobility criterion.
　また、緩和基準情報は、静止中セル端基準を示す静止中セル端情報をさらに含んでよい。これにより、ＵＥ１００に第２緩和基準として、静止中セル端基準が設定されている場合であっても、ＵＥ１００は、低モビリティ基準に基づいて第１緩和測定を適切に実行できる。 In addition, the relaxation criterion information may further include resting cell edge information indicating the resting cell edge criterion. This allows the UE 100 to appropriately perform the first relaxed measurement based on the low mobility criterion even when the stationary cell edge criterion is set as the second relaxed criterion in the UE 100 .
　また、緩和基準情報は、低モビリティ情報とセル端情報と静止情報と、を含み、且つ組み合わせ情報を含まなくてよい。制御部１４０は、セル端基準のみが満たされた場合には、第１緩和測定を実行することを選択してよい。これにより、ＵＥ１００がセル端基準を無視しない場合であって、第２緩和基準が設定されている場合であっても、ＵＥ１００は、セル端基準に基づいて第１緩和測定を適切に実行できる。 Also, the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information. Controller 140 may choose to perform the first relaxation measurement if only the cell edge criteria are met. As a result, even when the UE 100 does not ignore the cell edge criteria and the second relaxation criteria are set, the UE 100 can appropriately perform the first relaxation measurement based on the cell edge criteria.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。これにより、ＵＥ１００に第２緩和基準として、静止中セル端基準が設定されている場合であっても、ＵＥ１００は、セル端基準に基づいて第１緩和測定を適切に実行できる。 In addition, the relaxation criterion information may further include stationary cell edge information. This allows the UE 100 to appropriately perform the first relaxation measurement based on the cell edge criterion even when the stationary cell edge criterion is set as the second mitigation criterion in the UE 100 .
　また、緩和基準情報は、低モビリティ情報と、セル端情報と、静止情報と、を含み、且つ組み合わせ情報を含まなくてよい。制御部１４０は、静止基準が満たされた場合、低モビリティ基準が満たされたか否かにかかわらず、第２緩和測定を実行することを選択してよい。これにより、静止基準が満たされたときには、低モビリティ基準に基づく判定を省略でき、ＵＥ１００の処理負荷を低減できる。 Also, the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information. Control unit 140 may choose to perform the second mitigation measurement if the stationary criterion is met, whether or not the low mobility criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the low mobility criterion can be omitted, and the processing load of the UE 100 can be reduced.
　また、緩和基準情報は、低モビリティ情報と、セル端情報と、静止情報と、を含み、且つ組み合わせ情報を含まなくてよい。制御部は、静止基準が満たされた場合、セル端基準が満たされたか否かにかかわらず、第２緩和測定を実行することを選択してよい。これにより、静止基準が満たされたときには、セル端基準に基づく判定を省略でき、ＵＥ１００の処理負荷を低減できる。 Also, the mitigation criterion information may include low mobility information, cell edge information, and stationary information, and may not include combination information. The controller may choose to perform the second relaxation measurement if the quiescence criterion is met, whether or not the cell edge criterion is met. Thereby, when the stationary criterion is satisfied, the determination based on the cell edge criterion can be omitted, and the processing load of the UE 100 can be reduced.
　また、緩和基準情報は、静止中セル端情報をさらに含んでよい。これにより、ＵＥ１００は、第２緩和基準として静止中セル端基準が設定されている場合であっても、静止基準が満たされたときには、第１緩和基準に基づく判定を省略でき、ＵＥ１００の処理負荷を低減できる。 In addition, the relaxation criterion information may further include stationary cell edge information. As a result, even when the stationary cell edge criteria are set as the second mitigation criteria, the UE 100 can omit the determination based on the first mitigation criteria when the stationary criteria are satisfied, and the processing load of the UE 100 can be reduced.
　（その他の実施形態）
　上述の実施形態において、ＵＥ１００は、緩和測定の実行を選択した場合、緩和測定を実行してもよい。或いは、ＵＥ１００は、緩和基準を満たすことで緩和測定が可能である場合であっても、緩和測定を実際に実行しなくてもよい。例えば、ＲＲＣコネクティッド状態にあるＵＥ１００は、基地局２００から緩和測定の許可が得られた場合に、緩和測定を実行してもよい。 (Other embodiments)
In the above-described embodiments, the UE 100 may perform relaxation measurements when selecting to perform relaxation measurements. Alternatively, the UE 100 may not actually perform the relaxation measurement even if the relaxation measurement is possible by satisfying the relaxation criterion. For example, the UE 100 in the RRC connected state may perform relaxation measurement when permission for relaxation measurement is obtained from the base station 200 .
　例えば、ＵＥ１００は、ＲＲＣコネクティッド状態にある場合、測定結果を基地局２００へ送信してもよい。ＵＥ１００は、測定結果を送信後に、ＵＥ１００に緩和測定を実行させるための緩和測定指示を基地局２００から受信したことに基づいて、緩和測定を実行してもよい。また、ＵＥ１００は、ＲＲＣコネクティッド状態にある場合、緩和測定に基づく測定結果を基地局２００へ送信してもよい。ＵＥ１００は、測定結果を送信後に、ＵＥ１００に緩和測定を実行させないための通常測定指示を基地局２００から受信したことに基づいて、緩和測定を中止し、通常測定を実行してもよい。 For example, the UE 100 may transmit the measurement result to the base station 200 when in the RRC connected state. After transmitting the measurement result, the UE 100 may perform the relaxation measurement based on receiving from the base station 200 a relaxation measurement instruction for causing the UE 100 to perform the relaxation measurement. Also, the UE 100 may transmit the measurement result based on the relaxation measurement to the base station 200 when in the RRC connected state. After transmitting the measurement result, the UE 100 may stop the relaxation measurement and perform the normal measurement based on receiving from the base station 200 a normal measurement instruction for not causing the UE 100 to perform the relaxation measurement.
　上述の実施形態において、基地局２００は、複数のユニットを含んでもよい。複数のユニットは、プロトコルスタックに含まれる上位レイヤ（ｈｉｇｈｅｒ　ｌａｙｅｒ）をホストする第１のユニットと、プロトコルスタックに含まれる下位レイヤ（ｌｏｗｅｒ　ｌａｙｅｒ）をホストする第２のユニットとを含んでよい。上位レイヤは、ＲＲＣレイヤ、ＳＤＡＰレイヤ及びＰＤＣＰレイヤを含んでよく、下位レイヤは、ＲＬＣレイヤ、ＭＡＣレイヤ及びＰＨＹレイヤを含んでよい。第１のユニットは、ＣＵ（ｃｅｎｔｒａｌ　ｕｎｉｔ）であってよく、第２のユニットは、ＤＵ（Ｄｉｓｔｒｉｂｕｔｅｄ　Ｕｎｉｔ）であってよい。複数のユニットは、ＰＨＹレイヤの下位の処理を行う第３のユニットを含んでよい。第２のユニットは、ＰＨＹレイヤの上位の処理を行ってよい。第３のユニットは、ＲＵ（Ｒａｄｉｏ　Ｕｎｉｔ）であってよい。基地局２００は、複数のユニットのうちの１つであってよく、複数のユニットのうちの他のユニットと接続されていてよい。また、基地局２００は、ＩＡＢ（Ｉｎｔｅｇｒａｔｅｄ　Ａｃｃｅｓｓ　ａｎｄ　Ｂａｃｋｈａｕｌ）ドナー又はＩＡＢノードであってよい。 In the above-described embodiment, the base station 200 may include multiple units. The plurality of units may include a first unit hosting a higher layer included in the protocol stack and a second unit hosting a lower layer included in the protocol stack. The upper layers may include the RRC layer, the SDAP layer and the PDCP layer, and the lower layers may include the RLC layer, the MAC layer and the PHY layer. The first unit may be a CU (central unit), and the second unit may be a DU (Distributed Unit). The plurality of units may include a third unit that performs processing below the PHY layer. The second unit may perform processing above the PHY layer. The third unit may be an RU (Radio Unit). Base station 200 may be one of a plurality of units, and may be connected to other units of the plurality of units. Also, the base station 200 may be an IAB (Integrated Access and Backhaul) donor or an IAB node.
　上述の実施形態において、移動通信システム１としてＮＲに基づく移動通信システムを例に挙げて説明した。しかしながら、移動通信システム１は、この例に限定されない。移動通信システム１は、ＬＴＥ又は３ＧＰＰ規格の他の世代システム（例えば、第６世代）のいずれかのＴＳに準拠したシステムであってよい。基地局２００は、ＬＴＥにおいてＵＥ１００へ向けたＥ－ＵＴＲＡユーザプレーン及び制御プレーンプロトコル終端を提供するｅＮＢであってよい。移動通信システム１は、３ＧＰＰ規格以外の規格のＴＳに準拠したシステムであってよい。 In the above-described embodiment, the mobile communication system 1 based on NR has been described as an example. However, the mobile communication system 1 is not limited to this example. The mobile communication system 1 may be a TS-compliant system of either LTE or another generation system (eg, 6th generation) of the 3GPP standard. Base station 200 may be an eNB that provides E-UTRA user plane and control plane protocol termination towards UE 100 in LTE. The mobile communication system 1 may be a system conforming to a TS of a standard other than the 3GPP standard.
　上述の実施形態の動作におけるステップは、必ずしもフロー図又はシーケンス図に記載された順序に沿って時系列に実行されなくてよい。例えば、動作におけるステップは、フロー図又はシーケンス図として記載した順序と異なる順序で実行されても、並列的に実行されてもよい。また、動作におけるステップの一部が削除されてもよく、さらなるステップが処理に追加されてもよい。さらに、上述の各動作フローは、別個独立に実施する場合に限らず、２以上の動作フローを組み合わせて実施可能である。例えば、１つの動作フローの一部のステップを他の動作フローに追加してもよいし、１つの動作フローの一部のステップを他の動作フローの一部のステップと置換してもよい。 The steps in the operations of the above-described embodiments do not necessarily have to be executed in chronological order according to the order described in the flow diagram or sequence diagram. For example, the steps in the operations may be performed out of order or in parallel with the order illustrated in the flow diagrams or sequence diagrams. Also, some steps in the operation may be omitted and additional steps may be added to the process. Furthermore, each operation flow described above is not limited to being implemented independently, but can be implemented by combining two or more operation flows. For example, some steps of one operation flow may be added to another operation flow, or some steps of one operation flow may be replaced with some steps of another operation flow.
　ＵＥ１００又は基地局２００が行う各処理をコンピュータに実行させるプログラムが提供されてもよい。プログラムは、コンピュータ読取り可能媒体に記録されていてもよい。コンピュータ読取り可能媒体を用いれば、コンピュータにプログラムをインストールすることが可能である。ここで、プログラムが記録されたコンピュータ読取り可能媒体は、非一過性の記録媒体であってもよい。非一過性の記録媒体は、特に限定されるものではないが、例えば、ＣＤ－ＲＯＭ（Ｃｏｍｐａｃｔ　Ｄｉｓｋ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）やＤＶＤ－ＲＯＭ（Ｄｉｇｉｔａｌ　Ｖｅｒｓａｔｉｌｅ　Ｄｉｓｃ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）等の記録媒体であってもよい。また、ＵＥ１００又は基地局２００が行う各処理を実行する回路を集積化し、ＵＥ１００又は基地局２００の少なくとも一部を半導体集積回路（チップセット、ＳｏＣ）として構成してもよい。 A program that causes a computer to execute each process performed by the UE 100 or the base station 200 may be provided. The program may be recorded on a computer readable medium. A computer readable medium allows the installation of the program on the computer. Here, the computer-readable medium on which the program is recorded may be a non-transitory recording medium. The non-transitory recording medium is not particularly limited, but may be, for example, a recording medium such as CD-ROM (Compact Disk Read Only Memory) or DVD-ROM (Digital Versatile Disc Read Only Memory). good. Also, circuits that execute each process performed by the UE 100 or the base station 200 may be integrated, and at least a part of the UE 100 or the base station 200 may be configured as a semiconductor integrated circuit (chipset, SoC).
　上述の実施形態において、「送信する（ｔｒａｎｓｍｉｔ）」は、送信に使用されるプロトコルスタック内の少なくとも１つのレイヤの処理を行うことを意味してもよく、又は、無線又は有線で信号を物理的に送信することを意味してもよい。或いは、「送信する」は、上記少なくとも１つのレイヤの処理を行うことと、無線又は有線で信号を物理的に送信することとの組合せを意味してもよい。同様に、「受信する（ｒｅｃｅｉｖｅ）」は、受信に使用されるプロトコルスタック内の少なくとも１つのレイヤの処理を行うことを意味してもよく、又は、無線又は有線で信号を物理的に受信することを意味してもよい。或いは、「受信する」は、上記少なくとも１つのレイヤの処理を行うことと、無線又は有線で信号を物理的に受信することとの組合せを意味してもよい。同様に、「取得する（ｏｂｔａｉｎ／ａｃｑｕｉｒｅ）」は、記憶されている情報の中から情報を取得することを意味してもよく、他のノードから受信した情報の中から情報を取得することを意味してもよく、又は、情報を生成することにより当該情報を取得することを意味してもよい。同様に、「に基づいて（ｂａｓｅｄ　ｏｎ）」、「に応じて（ｄｅｐｅｎｄｉｎｇ　ｏｎ／ｉｎ　ｒｅｓｐｏｎｓｅ　ｔｏ）」という記載は、別段に明記されていない限り、「のみに基づいて」、「のみに応じて」を意味しない。「に基づいて」という記載は、「のみに基づいて」及び「に少なくとも部分的に基づいて」の両方を意味する。同様に、「に応じて」という記載は、「のみに応じて」及び「に少なくとも部分的に応じて」の両方を意味する。同様に、「～を含む（ｉｎｃｌｕｄｅ）」及び「～を備える（ｃｏｍｐｒｉｓｅ）」は、列挙する項目のみを含むことを意味せず、列挙する項目のみを含んでもよいし、列挙する項目に加えてさらなる項目を含んでもよいことを意味する。同様に、本開示において、「又は（ｏｒ）」は、排他的論理和を意味せず、論理和を意味する。さらに、本開示で使用した「第１」、「第２」などの呼称を使用した要素へのいかなる参照も、それらの要素の量又は順序を全般的に限定するものではない。これらの呼称は、２つ以上の要素間を区別する便利な方法として本開示で使用され得る。したがって、第１及び第２の要素への参照は、２つの要素のみがそこで採用され得ること、又は何らかの形で第１の要素が第２の要素に先行しなければならないことを意味しない。本開示において、例えば、英語でのａ，ａｎ，及びｔｈｅのように、翻訳により冠詞が追加された場合、これらの冠詞は、文脈から明らかにそうではないことが示されていなければ、複数のものを含むものとする。 In the above embodiments, "transmit" may mean performing at least one layer of processing in the protocol stack used for transmission, or physically transmitting the signal wirelessly or by wire. It may mean sending to Alternatively, "transmitting" may mean a combination of performing the at least one layer of processing and physically transmitting the signal wirelessly or by wire. Similarly, "receive" may mean performing processing of at least one layer in the protocol stack used for reception, or physically receiving a signal wirelessly or by wire. may mean that Alternatively, "receiving" may mean a combination of performing the at least one layer of processing and physically receiving the signal wirelessly or by wire. Similarly, "obtain/acquire" may mean obtaining information among stored information, and may mean obtaining information among information received from other nodes. Alternatively, it may mean obtaining the information by generating the information. Similarly, references to "based on" and "depending on/in response to" are used unless otherwise specified. does not mean The phrase "based on" means both "based only on" and "based at least in part on." Similarly, the phrase "depending on" means both "only depending on" and "at least partially depending on." Similarly, "include" and "comprise" are not meant to include only the recited items, and may include only the recited items or in addition to the recited items. Means that it may contain further items. Similarly, in the present disclosure, "or" does not mean exclusive OR, but means logical OR. Furthermore, any references to elements using the "first," "second," etc. designations used in this disclosure do not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed therein or that the first element must precede the second element in any way. In this disclosure, when articles are added by translation, such as a, an, and the in English, these articles are used in plural unless the context clearly indicates otherwise. shall include things.
　本開示は、実施例に準拠して記述されたが、本開示は当該実施例や構造に限定されるものではないと理解される。本開示は、様々な変形例や均等範囲内の変形をも包含する。加えて、様々な組み合わせや形態、さらには、それらに一要素のみ、それ以上、あるいはそれ以下、を含む他の組み合わせや形態をも、本開示の範疇や思想範囲に入るものである。 Although the present disclosure has been described with reference to examples, it is understood that the present disclosure is not limited to those examples or structures. The present disclosure also includes various modifications and modifications within the equivalent range. In addition, various combinations and configurations, as well as other combinations and configurations, including single elements, more, or less, are within the scope and spirit of this disclosure.
　（付記）
　上述の実施形態に関する特徴について付記する。 (Appendix)
Features related to the above-described embodiments are added.
　（付記１）
　静止基準を示す情報及び静止中セル端基準を示す情報を基地局から受信する受信部と、
　前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する制御部と、を備える
　通信装置。 (Appendix 1)
a receiving unit that receives information indicating a stationary reference and information indicating a stationary cell edge reference from a base station;
If the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is met without the stationary cell edge criterion being met, intra based on the measurement interval with a measurement relaxation factor applied. A communication device, comprising: a control unit that performs measurement of frequency cells.
　（付記２）
　前記制御部は、前記測定緩和ファクターとして３よりも大きい値を適用する
　付記１に記載の通信装置。 (Appendix 2)
The communication device according to appendix 1, wherein the control unit applies a value greater than 3 as the measurement relaxation factor.
　（付記３）
　前記制御部は、前記測定として、所定の測定間隔の第１測定よりも前記測定間隔が広い第２測定を実行する
　付記１又は２に記載の通信装置。 (Appendix 3)
3. The communication device according to appendix 1 or 2, wherein the control unit performs, as the measurement, a second measurement with a wider measurement interval than a first measurement with a predetermined measurement interval.
　（付記４）
　前記受信部は、前記静止基準を示す情報及び前記静止中セル端基準を示す情報を含むシステム情報ブロックを前記基地局から受信する
　付記１から３のいずれか１項に記載の通信装置。 (Appendix 4)
4. The communication device according to any one of attachments 1 to 3, wherein the receiving unit receives from the base station a system information block including information indicating the stationary reference and information indicating the stationary cell edge reference.
　（付記５）　
　前記制御部は、第１ケース及び第２ケースのいずれかに該当する場合、所定の測定間隔で前記測定を実行しないように制御し、
　前記第１ケースは、前記静止基準及び前記静止中セル端基準が設定されており且つ前記静止基準及び前記静止中セル端基準の両方が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していないケースであり、
　前記第２ケースは、低モビリティ基準とセル端基準とが設定されており且つ前記低モビリティ基準と前記セル端基準との両方が満たされている場合であって、前記静止基準及び前記静止中セル端基準が設定されておりかつ前記静止基準及び前記静止中セル端基準が満たされているケースである
　付記１から４のいずれか１項に記載の通信装置。 (Appendix 5)
The control unit controls not to perform the measurement at a predetermined measurement interval when it corresponds to either the first case or the second case,
The first case is when the stationary criterion and the stationary cell edge criterion are set and both the stationary criterion and the stationary cell edge criterion are satisfied, and a measurement for cell reselection is performed. is the case in which the predetermined time has not passed since the last execution of
The second case is a case where a low mobility criterion and a cell edge criterion are set and both the low mobility criterion and the cell edge criterion are satisfied, and the stationary criterion and the stationary cell 5. The communication device according to any one of appendices 1 to 4, wherein an edge criterion is set and the stationary criterion and the stationary cell edge criterion are satisfied.
　（付記６）
　静止基準及び静止中セル端基準が設定されておりかつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合に測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する通信装置へ、前記静止基準を示す情報及び前記静止中セル端基準を示す情報を送信する送信部を備える
　基地局。 (Appendix 6)
of intra-frequency cells based on a measurement interval where a stationary criterion and a stationary cell edge criterion are set and a measurement relaxation factor is applied when the stationary cell edge criterion is not met and the stationary cell edge criterion is met; A base station, comprising a transmitting unit that transmits information indicating the stationary reference and information indicating the stationary cell edge reference to a communication device that performs measurement.
　（付記７）
　通信装置で実行される通信方法であって、
　静止基準を示す情報及び静止中セル端基準を示す情報を基地局から受信するステップと、
　前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行するステップと、を備える
　通信方法。 (Appendix 7)
A communication method performed by a communication device, comprising:
receiving information from a base station indicating a stationary criterion and information indicating a stationary cell edge criterion;
If the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is met without the stationary cell edge criterion being met, intra based on the measurement interval with a measurement relaxation factor applied. and performing frequency cell measurements.

Claims (7)

  1. 　静止基準を示す情報及び静止中セル端基準を示す情報を基地局（２００）から受信する受信部（１２１）と、
    　前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する制御部（１４０）と、を備える
    　通信装置（１００）。     a receiving unit (121) for receiving information indicating a stationary reference and information indicating a stationary cell edge reference from a base station (200);
    If the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is met without the stationary cell edge criterion being met, intra based on the measurement interval with a measurement relaxation factor applied. A communication device (100), comprising: a control unit (140) that performs frequency cell measurement.
  2. 　前記制御部は、前記測定緩和ファクターとして３よりも大きい値を適用する
    　請求項１に記載の通信装置。     The communication device according to claim 1, wherein the controller applies a value greater than 3 as the measurement relaxation factor.
  3. 　前記制御部は、前記測定として、所定の測定間隔の第１測定よりも前記測定間隔が広い第２測定を実行する
    　請求項１又は２に記載の通信装置。     The communication device according to claim 1 or 2, wherein, as the measurement, the control unit performs a second measurement with a wider measurement interval than a first measurement with a predetermined measurement interval.
  4. 　前記受信部は、前記静止基準を示す情報及び前記静止中セル端基準を示す情報を含むシステム情報ブロックを前記基地局から受信する
    　請求項１又は２に記載の通信装置。     The communication device according to claim 1 or 2, wherein the receiving unit receives from the base station a system information block including information indicating the stationary reference and information indicating the stationary cell edge reference.
  5. 　前記制御部は、第１ケース及び第２ケースのいずれかに該当する場合、所定の測定間隔で前記測定を実行しないように制御し、
    　前記第１ケースは、前記静止基準及び前記静止中セル端基準が設定されており且つ前記静止基準及び前記静止中セル端基準の両方が満たされている場合であって、セル再選択用の測定を最後に実行してから所定時間が経過していないケースであり、
    　前記第２ケースは、低モビリティ基準とセル端基準とが設定されており且つ前記低モビリティ基準と前記セル端基準との両方が満たされている場合であって、前記静止基準及び前記静止中セル端基準が設定されておりかつ前記静止基準及び前記静止中セル端基準が満たされているケースである
    　請求項１又は２に記載の通信装置。     The control unit controls not to perform the measurement at a predetermined measurement interval when it corresponds to either the first case or the second case,
    The first case is when the stationary criterion and the stationary cell edge criterion are set and both the stationary criterion and the stationary cell edge criterion are satisfied, and a measurement for cell reselection is performed. is the case in which the predetermined time has not passed since the last execution of
    The second case is a case where a low mobility criterion and a cell edge criterion are set and both the low mobility criterion and the cell edge criterion are satisfied, and the stationary criterion and the stationary cell 3. The communication device according to claim 1 or 2, wherein an edge criterion is set and the stationary criterion and the stationary cell edge criterion are satisfied.
  6. 　静止基準及び静止中セル端基準が設定されておりかつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合に測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行する通信装置（１００）へ、前記静止基準を示す情報及び前記静止中セル端基準を示す情報を送信する送信部（２２０）を備える
    　基地局（２００）。     of intra-frequency cells based on a measurement interval where a stationary criterion and a stationary cell edge criterion are set and a measurement relaxation factor is applied when the stationary cell edge criterion is not met and the stationary cell edge criterion is met; A base station (200) comprising a transmitter (220) that transmits information indicating the stationary reference and information indicating the stationary cell edge reference to a communication device (100) that performs measurement.
  7. 　通信装置（１００）で実行される通信方法であって、
    　静止基準を示す情報及び静止中セル端基準を示す情報を基地局（２００）から受信するステップと、
    　前記静止基準及び前記静止中セル端基準が設定されており、かつ前記静止中セル端基準が満たされずに前記静止基準が満たされている場合、測定緩和ファクターが適用された測定間隔に基づいてイントラ周波数セルの測定を実行するステップと、を備える
    　通信方法。
     
     
     
          A communication method performed by a communication device (100), comprising:
    receiving from the base station (200) information indicating stationary criteria and information indicating stationary cell edge criteria;
    If the stationary criterion and the stationary cell edge criterion are set and the stationary criterion is met without the stationary cell edge criterion being met, intra based on the measurement interval with a measurement relaxation factor applied. and performing frequency cell measurements.
PCT/JP2022/047948 2022-01-07 2022-12-26 Communication device, base station, and communication control method WO2023132292A1 (en)

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Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "Running CR for the RedCap WI", 3GPP TSG RAN WG2 #116-E R2-2111621, 19 November 2021 (2021-11-19), XP052078450 *
MODERATOR (VIVO): "Email discussion summary for [233] NR_redcap_RRM_2", 3GPP TSG RAN WG4 MEETING #101-E, R4-2120375, 12 November 2021 (2021-11-12), XP052082370 *
XIAOMI: "Discussion on RRM measurement relaxations for RedCap UE", 3GPP TSG RAN WG4 MEETING #101E, R4-2117820, 22 October 2021 (2021-10-22), XP052069395 *

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