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WO2019131319A1 - Équipement terminal, dispositif de station de base, procédé de communication et circuit intégré - Google Patents

Équipement terminal, dispositif de station de base, procédé de communication et circuit intégré Download PDF

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Publication number
WO2019131319A1
WO2019131319A1 PCT/JP2018/046535 JP2018046535W WO2019131319A1 WO 2019131319 A1 WO2019131319 A1 WO 2019131319A1 JP 2018046535 W JP2018046535 W JP 2018046535W WO 2019131319 A1 WO2019131319 A1 WO 2019131319A1
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Prior art keywords
measurement
terminal device
threshold
information
identifier
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English (en)
Japanese (ja)
Inventor
秀和 坪井
山田　昇平
貴子 堀
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Sharp Corp
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Sharp Corp
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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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • the present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.
  • the cellular-mobile radio access method and radio network (hereinafter referred to as "Long Term Evolution (LTE: registered trademark)” or “Evolved Universal Terrestrial Radio Access: EUTRA”) are the third generation partnership project (3rd) It is being considered in the Generation Partnership Project (3GPP).
  • Non-Patent Document 1 As a radio access method and radio network technology for the 5th generation cellular system, technology examination of LTE-Advanced Pro which is an extension technology of LTE and NR (New Radio technology) which is a new radio access technology And standards are being developed (Non-Patent Document 1).
  • Non-Patent Document 2 A mechanism in which cells of both LTE and NR RAT (Radio Access Technology) are cell grouped for each RAT and assigned to a terminal device, and the terminal device and one or more base station devices communicate (EN-DC: E-UTRA -NR Dual Connectivity) has been studied (Non-Patent Document 2).
  • the terminal device determines whether to perform measurement based on the reception quality of a specific serving cell (PCell) in measurement in which the measurement target is LTE, and the measurement target is NR.
  • PCell a specific serving cell
  • a scheme has been introduced that performs measurement regardless of the reception quality of a specific serving cell (PCell) in a certain measurement (Non-Patent Document 3).
  • One aspect of the present invention has been made in view of the above-described circumstances, and a terminal device capable of efficiently performing measurement, a base station device communicating with the terminal device, a communication method used for the terminal device, Another object of the present invention is to provide a communication method used in a base station apparatus, an integrated circuit mounted in the terminal apparatus, and an integrated circuit mounted in the base station apparatus.
  • a first aspect of the present invention is a terminal device, which includes a measurement target, a report setting, and a measurement identifier identifying a combination of one of the measurement targets and one of the report settings.
  • the terminal device comprises: a receiving unit for receiving; and a measuring unit for executing measurement of the measurement object indicated by the measurement identifier when the first condition is satisfied, wherein the first condition is satisfied in the terminal device.
  • a threshold of 1 is not set, or if the first threshold is set for the terminal device, and if the reference signal received power (RSRP) after filtering of a specific serving cell is smaller than the first threshold, Or, the case where the measurement target of the measurement identifier includes the first information.
  • RSRP reference signal received power
  • a second aspect of the present invention is a base station apparatus comprising: a measurement target; a report setting; a measurement identifier identifying a combination of one of the measurement targets and one of the report settings; Generating a measurement setting including a transmitter configured to transmit a measurement setting including the threshold and the first information indicating whether or not the first threshold is considered in the measurement of the measurement target indicated by the measurement identifier; And a control unit.
  • a third aspect of the present invention is a communication method applied to a terminal device, wherein the measurement identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings.
  • RSRP reference signal reception power
  • a fourth aspect of the present invention is a communication method applied to a base station apparatus, which identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings. Transmitting a measurement setting including a measurement identifier and a first threshold, and including first information indicating whether or not the first threshold is considered in the measurement of the measurement target indicated by the measurement identifier Generating the measurement settings.
  • a fifth aspect of the present invention is an integrated circuit mounted on a terminal device, wherein the measurement identifies a combination of a measurement target, a report setting, one of the measurement targets, and one of the report settings. Causing the terminal device to exhibit a function of receiving a measurement setting including an identifier, and a function of performing measurement of the measurement target indicated by the measurement identifier when the first condition is satisfied,
  • the condition that the condition 1 is satisfied means that the first threshold value is not set in the terminal device, or the first threshold value is set in the terminal device and the reference signal reception power after filtering of a specific serving cell When (RSRP) is smaller than said 1st threshold value, or when measurement object of said measurement identifier is included in 1st information.
  • RSRP specific serving cell
  • a sixth aspect of the present invention is an integrated circuit implemented in a base station apparatus, which identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings.
  • a function of generating the measurement setting is exhibited to the base station apparatus.
  • the terminal device and the base station device can perform communication based on efficient measurement.
  • FIG. 5 is a diagram illustrating a relationship between subframes, slots, and minislots in the time domain according to an embodiment of the present invention.
  • FIG. 7 shows an example of a slot or subframe according to an embodiment of the present invention. It is a figure which shows an example of measurement execution judgment which concerns on embodiment of this invention.
  • a wireless communication system and a wireless network of the present embodiment will be described.
  • LTE (and LTE-A Pro) and NR may be defined as different RATs. Also, LTE connectable by NR and Dual connectivity may be distinguished from conventional LTE. This embodiment may be applied to NR, LTE and other RATs. The following description will be made using LTE and NR related terms, but may be applied in other technologies using other terms.
  • FIG. 1 is a conceptual view of a wireless communication system according to the present embodiment.
  • the wireless communication system includes a terminal device 2 and a base station device 3.
  • the base station device 3 may include one or more transmission reception points (TRPs).
  • TRPs transmission reception points
  • the base station device 3 may serve the terminal device 2 with the communicable range (communication area) controlled by the base station device 3 as one or more cells.
  • the base station device 3 may include a core network device.
  • the base station device 3 may serve the terminal device 2 with the communicable range (communication area) controlled by one or more transmission / reception points 4 as one or more cells.
  • one cell may be divided into a plurality of partial areas (also referred to as “Beamed area” or “Beamed cells”), and the terminal device 2 may be served in each partial area.
  • the partial region may be identified based on an index of a beam used in beam forming, an index of query correlation, or an index of precoding.
  • the communication areas covered by the base station apparatus 3 may have different sizes and different shapes for each frequency. Also, the coverage area may be different for each frequency. Further, a wireless network in which cells having different types of base station apparatus 3 and different cell radius sizes are mixed in the same frequency or different frequencies to form one communication system is referred to as a heterogeneous network.
  • the wireless communication link from the base station device 3 to the terminal device 2 is referred to as downlink.
  • the wireless communication link from the terminal device 2 to the base station device 3 is referred to as uplink.
  • the direct wireless communication link from the terminal device 2 to another terminal device 2 is referred to as a side link.
  • orthogonal frequency division including a cyclic prefix (CP) Orthogonal Frequency Division Multiplexing (OFDM), Single-Carrier Frequency Division Multiplexing (SC-FDM), Discrete Fourier Transform Spread OFDM (DFT), Multi-Carrier Code Division Multiple Access (MC-CDM: Multi-Carrier Code Division Multiplexing) may be used.
  • CP cyclic prefix
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDM Single-Carrier Frequency Division Multiplexing
  • DFT Discrete Fourier Transform Spread OFDM
  • M-CDM Multi-Carrier Code Division Multiple Access
  • UMC Universal-Filtered
  • F-OFDM Filtered OFDM
  • FBMC Filter-Bank Multi-Carrier
  • OFDM is described as a transmission scheme using OFDM symbols, but the case of using the other transmission schemes described above is also included in an aspect of the present invention.
  • the OFDM symbol in the present embodiment may be an SC-FDM symbol (sometimes referred to as a SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol).
  • no CP is used or zero padding is used instead of the CP.
  • the above-described transmission scheme may be used.
  • CP and zero padding may be added to both forward and backward.
  • the terminal device 2 operates by regarding the inside of the cell as a communication area.
  • the terminal device 2 may move to another appropriate cell by a cell reselection procedure at the time of non-wireless connection (idle state, also referred to as RRC_IDLE state).
  • the terminal device 2 may move to another cell by a handover procedure at the time of wireless connection (connected state, also referred to as RRC_CONNECTED state).
  • An appropriate cell is a cell that is generally determined not to prohibit the access of the terminal device 2 based on the information indicated from the base station device 3, and the downlink reception quality is predetermined. Indicates a cell that satisfies the condition.
  • the terminal device 2 may move to another appropriate cell by a cell reselection procedure in an inactive state (also referred to as an inactive state).
  • the terminal device 2 may move to another cell by a handover procedure in an inactive state.
  • a cell set to be used for communication with the terminal device 2 is a serving cell (Serving cell) , Serving cell) and cells not used for other communication may be referred to as neighboring cells.
  • serving cell Serving cell
  • neighboring cells cells not used for other communication
  • part or all of the system information required in the serving cell may be broadcast or notified to the terminal device 2 in another cell.
  • one or more serving cells are set for the terminal device 2.
  • the plurality of configured serving cells may include one primary cell and one or more secondary cells.
  • the primary cell may be a serving cell on which an initial connection establishment procedure has been performed, a serving cell on which a connection re-establishment procedure has been started, or a cell designated as a primary cell in a handover procedure.
  • One or more secondary cells may be configured when an RRC (Radio Resource Control) connection is established or after an RRC connection is established.
  • RRC Radio Resource Control
  • a cell group (also referred to as a master cell group (MCG)) configured with one or more serving cells including a primary cell (PCell) and no primary cell, at least a random access procedure can be performed and is inactive. Even if one or more cell groups (also referred to as secondary cell groups (SCGs)) configured with one or more serving cells including a primary secondary cell (PSCell) that does not enter the state are set in the terminal device 2 Good.
  • MCG master cell group
  • SCGs secondary cell groups
  • a master cell group is composed of one primary cell and zero or more secondary cells.
  • the secondary cell group is configured of one primary secondary cell and zero or more secondary cells.
  • any one of MCG and SCG may be a cell group configured by LTE cells.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • a TDD (Time Division Duplex) scheme or an FDD (Frequency Division Duplex) scheme may be applied to all of the plurality of cells.
  • cells to which the TDD scheme is applied and cells to which the FDD scheme is applied may be aggregated.
  • a carrier (frequency) of FDD may be referred to as a paired carrier (paired carrier), and a carrier (frequency) of TDD may be referred to as an unpaired carrier. That is, FDD may be synonymous with Paierd, and TDD may be synonymous with Unpaierd.
  • a carrier corresponding to a serving cell is referred to as a downlink component carrier (or downlink carrier).
  • a carrier corresponding to a serving cell is referred to as an uplink component carrier (or uplink carrier).
  • an uplink component carrier or uplink carrier
  • a carrier corresponding to the serving cell is referred to as a side link component carrier (or side link carrier).
  • the downlink component carrier, the uplink component carrier, and / or the side link component carrier are collectively referred to as a component carrier (or carrier).
  • downlink physical channels and / or downlink physical signals may be collectively referred to as downlink signals.
  • the uplink physical channel and / or uplink physical signal may be collectively referred to as uplink signal.
  • the downlink physical channel and / or the uplink physical channel may be collectively referred to as a physical channel.
  • the downlink physical signals and / or the uplink physical signals may be collectively referred to as physical signals.
  • the uplink physical channel is used by the physical layer to transmit information output from the upper layer.
  • -PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • PRACH Physical Random Access Channel
  • the PUCCH is used to transmit uplink control information (UCI).
  • the uplink control information includes downlink channel state information (CSI), and a scheduling request (Scheduling Request) used to request a PUSCH (Uplink-Shared Channel: UL-SCH) resource for initial transmission.
  • CSI downlink channel state information
  • Scheduling Request used to request a PUSCH (Uplink-Shared Channel: UL-SCH) resource for initial transmission.
  • SR scheduling request
  • HARQ-ACK Hybrid Automatic Replay
  • HARQ-ACK Hybrid Automatic Replay
  • HARQ-ACK indicates ACK (acknowledgement) or NACK (negative-acknowledgement).
  • HARQ-ACK is also referred to as HARQ feedback, HARQ information, HARQ control information, and ACK / NACK.
  • the PUSCH is used to transmit uplink data (Uplink-Shared Channel: UL-SCH).
  • the PUSCH may be used to transmit HARQ-ACK and / or channel state information along with uplink data. Also, PUSCH may be used to transmit channel state information only, or only HARQ-ACK and channel state information.
  • PUSCH is used to transmit random access message 3.
  • the PRACH is used to transmit a random access preamble (random access message 1).
  • the PRACH indicates an initial connection establishment procedure, a handover procedure, a connection re-establishment procedure, synchronization for uplink transmission (timing adjustment), and a request for PUSCH (UL-SCH) resources. Used for
  • uplink physical signals are used.
  • the uplink physical signal is not used to transmit information output from the upper layer, but is used by the physical layer.
  • UL RS Uplink reference signal
  • uplink reference signals the following two types are used.
  • -DMRS Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • DMRS relates to PUSCH or PUCCH transmission.
  • the DMRS is time multiplexed with the PUSCH or PUCCH.
  • the base station apparatus 3 uses DMRS to perform PUSCH or PUCCH channel correction.
  • transmission of both PUSCH and DMRS is referred to simply as transmission of PUSCH.
  • transmitting PUCCH and DMRS together is referred to simply as transmitting PUCCH.
  • the SRS is not related to PUSCH or PUCCH transmission.
  • the base station apparatus 3 may use SRS for channel state measurement.
  • the SRS is transmitted in the last SC-FDMA symbol in the uplink subframe or the SC-FDMA symbol in the UpPTS.
  • the downlink physical channel is used by the physical layer to transmit information output from higher layers.
  • PBCH Physical Broadcast Channel
  • PCFICH Physical Control Format Indicator Channel
  • PHICH Physical Hybrid automatic repeat request Indicator Channel
  • PDCCH Physical Downlink Control Channel
  • EPDCCH Enhanced Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PMCH Physical Multicast Channel
  • the PBCH is used to broadcast a master information block (MIB, Broadcast Channel: BCH) commonly used in the terminal device 2.
  • SFN system frame number
  • MIB is system information. For example, the MIB includes information indicating SFN.
  • the PCFICH is used to transmit information indicating an area (OFDM symbol) used for PDCCH transmission.
  • the PHICH is used to transmit an HARQ indicator for uplink data (Uplink Shared Channel: UL-SCH) received by the base station device 3.
  • the HARQ indicator indicates HARQ-ACK.
  • the PDCCH and the EPDCCH are used to transmit downlink control information (DCI).
  • DCI downlink control information
  • the downlink control information is also referred to as DCI format.
  • the downlink control information includes downlink grant and uplink grant.
  • a downlink grant is also referred to as downlink assignment or downlink allocation.
  • One downlink grant is used for scheduling one PDSCH in one serving cell.
  • the downlink grant is used to schedule the PDSCH in the same subframe as the subframe in which the downlink grant is transmitted.
  • One uplink grant is used for scheduling of one PUSCH in one serving cell.
  • the uplink grant is used to schedule the PUSCH in a subframe four or more after the subframe in which the uplink grant is transmitted.
  • the uplink grant transmitted on PDCCH includes DCI format 0.
  • the PUSCH transmission scheme corresponding to DCI format 0 is a single antenna port.
  • the terminal device 2 uses a single antenna port transmission scheme for PUSCH transmission corresponding to DCI format 0.
  • PUSCH to which the single antenna port transmission scheme is applied is used for transmission of one codeword (one transport block).
  • the uplink grant transmitted on PDCCH includes DCI format 4.
  • the PUSCH transmission scheme corresponding to DCI format 4 is closed loop space multiplexing.
  • the terminal device 2 uses a closed loop space multiplexing transmission scheme for PUSCH transmission corresponding to the DCI format 4.
  • the PUSCH to which the closed loop spatial multiplexing scheme is applied is used for the transmission of up to two codewords (up to two transport blocks).
  • the CRC parity bit added to the downlink grant or uplink grant is C-RNTI (Cell-Radio Network Temporary Identifier), Temporary C-RNTI, SPS (Semi Persistent Scheduling) C-RNTI (Cell-Radio Network Temporary) Identifier) is scrambled.
  • C-RNTI and SPS C-RNTI is an identifier for identifying a terminal device in a cell.
  • the Temporary C-RNTI is used in a contention based random access procedure.
  • the C-RNTI is used to control PDSCH or PUSCH in one subframe.
  • the SPS C-RNTI is used to periodically allocate PDSCH or PUSCH resources.
  • the Temporary C-RNTI is used to schedule retransmission of random access message 3 and transmission of random access message 4.
  • the PDSCH is used to transmit downlink data (Downlink Shared Channel: DL-SCH).
  • PDSCH is used to transmit random access message 2 (random access response).
  • the PDSCH is used to send a handover command.
  • the random access response includes a RAR grant (Random Access Response grant).
  • the RAR grant is an uplink grant transmitted on the PDSCH.
  • the terminal device 2 uses a single antenna port transmission scheme for PUSCH transmission corresponding to RAR grant and PUSCH retransmission for the same transport block.
  • the PMCH is used to transmit multicast data (Multicast Channel: MCH).
  • MCH Multicast Channel
  • the downlink physical signal is not used to transmit information output from the upper layer, but is used by the physical layer.
  • SS Synchronization signal
  • DL RS Downlink Reference Signal
  • the synchronization signal is used by the terminal device 2 to synchronize the downlink frequency domain and time domain.
  • the synchronization signal includes PSS (Primary Synchronization Signal) and SSS (Second Synchronization Signal).
  • the downlink reference signal is used by the terminal device 2 to perform channel correction of the downlink physical channel.
  • the downlink reference signal is used by the terminal device 2 to calculate downlink channel state information.
  • the following seven types of downlink reference signals are used.
  • CRS Cell-specific Reference Signal
  • URS UE-specific Reference Signal
  • PDSCH PDSCH
  • DMRS Demodulation Reference Signal
  • NZP CSI-RS Non-Zero Power Chanel State Information-Reference Signal
  • ZP CSI-RS Zero Power Chanel State Information-Reference Signal
  • MBSFN RS Multimedia Broadcast and Multicast Service over Single Frequency Network Reference Signal
  • PRS Positioning Reference Signal
  • the downlink physical channel and the downlink physical signal are collectively referred to as a downlink signal.
  • the uplink physical channel and uplink physical signal are collectively referred to as uplink signal.
  • the downlink physical channel and the uplink physical channel are collectively referred to as a physical channel.
  • Downlink physical signals and uplink physical signals are collectively referred to as physical signals.
  • BCH, MCH, UL-SCH and DL-SCH are transport channels.
  • a channel used in a medium access control (MAC) layer is called a transport channel.
  • a unit of transport channel used in the MAC layer is also referred to as transport block (TB) or MAC PDU (Protocol Data Unit).
  • TB transport block
  • MAC PDU Protocol Data Unit
  • control of HARQ Hybrid Automatic Repeat request
  • the transport block is a unit of data delivered by the MAC layer to the physical layer.
  • transport blocks are mapped to codewords, and encoding processing is performed for each codeword.
  • the base station device 3 and the terminal device 2 exchange (transmit and receive) signals in a higher layer.
  • RRC Radio Resource Control
  • the base station apparatus 3 and the terminal apparatus 2 transmit and receive RRC signaling (RRC message: Radio Resource Control message, also referred to as RRC information: Radio Resource Control information).
  • RRC message Radio Resource Control message
  • RRC information Radio Resource Control information
  • the base station apparatus 3 and the terminal apparatus 2 may transmit and receive MAC CE (Control Element) in the medium access control (MAC) layer.
  • MAC CE Medium access control
  • RRC signaling and / or MAC CE are also referred to as higher layer signaling.
  • RRC signaling transmitted on the PDSCH from the base station device 3 may be common signaling to a plurality of terminal devices 2 in a cell.
  • the RRC signaling transmitted on the PDSCH from the base station apparatus 3 may be dedicated signaling (also referred to as dedicated signaling or UE specific signaling) for a certain terminal apparatus 2.
  • the cell specific parameter may be transmitted using common signaling to a plurality of terminal devices 2 in a cell or dedicated signaling to a certain terminal device 2.
  • the UE specific parameters may be transmitted to a certain terminal device 2 using dedicated signaling.
  • the following downlink physical channels are used in NR.
  • the downlink physical channel is used to transmit information output from the upper layer.
  • NR-PBCH New Radio Physical Broadcast CHannel
  • NR-PDCCH New Radio Physical Downlink Control CHannel
  • NR-PDSCH New Radio Physical Downlink Shared CHannel
  • the NR-PBCH is used by the base station apparatus 3 to notify an important information block (MIB: Master Information Block, EIB: Essential Information Block) including important system information (Essential information) required by the terminal device 2.
  • MIB Master Information Block
  • EIB Essential Information Block
  • the important information block may include information indicating part or all of a frame number (SFN: System Frame Number) (for example, information on a position in a super frame formed of a plurality of frames).
  • SFN System Frame Number
  • a radio frame (10 ms) is composed of 10 of 1 ms subframes, and a radio frame is identified by a frame number. The frame number returns to 0 at 1024 (wrap around).
  • information that can identify the area may be included.
  • identifier information of a base station transmit beam may be indicated using an index of a base station transmit beam (precoding).
  • the time position in the frame for example, the subframe number including the relevant important information block (important information message)
  • Information that can be included may be included. That is, information may be included to determine each subframe number in which each of the transmission of the important information block (important information message) using different base station transmission beam indexes is performed.
  • the important information may include information necessary for connection to a cell and mobility.
  • the important information message may be part of a system information message.
  • some or all of the important information messages may be referred to as minimum system information (Minimum SI). If all the valid minimum system information in a cell can not be obtained, the terminal device 2 may regard that cell as a barred cell (Accessed). Also, only a part of the minimum system information may be broadcast on the PBCH, and the remaining minimum system information may be transmitted on the NR-PSCH described later.
  • the NR-PDCCH is used to transmit downlink control information (DCI) in downlink wireless communication (wireless communication from the base station device 3 to the terminal device 2).
  • DCI downlink control information
  • one or more DCIs (which may be referred to as a DCI format) are defined for transmission of downlink control information. That is, the field for downlink control information is defined as DCI and mapped to information bits.
  • DCI including information indicating timing for transmitting HARQ-ACK for scheduled NR-PDSCH (for example, number of symbols from last symbol included in NR-PDSCH to HARQ-ACK transmission) is defined and defined. It is also good.
  • DCI used for scheduling of one downlink radio communication NR-PDSCH (transmission of one downlink transport block) in one cell may be defined as DCI.
  • DCI used for scheduling of one uplink radio communication NR-PUSCH (transmission of one uplink transport block) in one cell may be defined as DCI.
  • DCI includes information on scheduling of NR-PDSCH or NR-PUSCH.
  • DCI for downlink is also referred to as downlink grant or downlink assignment.
  • DCI for uplink is also referred to as uplink grant or uplink assignment.
  • NR-PDSCH is used for transmission of downlink data (DL-SCH: Downlink Shared CHannel) from medium access control (MAC: Medium Access Control). It is also used for transmission of system information (SI: System Information) and random access response (RAR: Random Access Response).
  • SI System Information
  • RAR Random Access Response
  • the base station device 3 and the terminal device 2 exchange (transmit and receive) signals in a higher layer.
  • the base station device 3 and the terminal device 2 transmit and receive RRC signaling (RRC message: Radio Resource Control message, also referred to as RRC information: Radio Resource Control information) in a Radio Resource Control (RRC) layer.
  • RRC Radio Resource Control
  • the base station device 3 and the terminal device 2 may transmit and receive MAC control elements in the MAC (Medium Access Control) layer.
  • RRC signaling and / or MAC control elements are also referred to as higher layer signaling.
  • the upper layer here may include one or more of a MAC layer, an RRC layer, an RLC layer, a PDCP layer, an NAS layer, and the like to mean an upper layer viewed from the physical layer.
  • the upper layer may include one or more of an RRC layer, an RLC layer, a PDCP layer, an NAS layer, and the like.
  • the NR-PDSCH may be used to transmit RRC signaling and MAC control elements.
  • RRC signaling transmitted from the base station device 3 may be common signaling to a plurality of terminal devices 2 in a cell.
  • RRC signaling transmitted from the base station device 3 may be dedicated signaling (also referred to as dedicated signaling) for a certain terminal device 2. That is, terminal device specific (UE specific) information may be transmitted to a certain terminal device 2 using dedicated signaling.
  • the NR-PRACH may be used to transmit a random access preamble.
  • the NR-PRACH includes an initial connection establishment procedure, a handover procedure, a connection re-establishment procedure, synchronization for uplink transmission (timing adjustment), and an NR-PUSCH (UL-SCH) resource. It may be used to indicate a request.
  • the following downlink physical signals are used.
  • the downlink physical signal is not used to transmit information output from the upper layer, but is used by the physical layer.
  • SS Synchronization signal
  • RS Reference signal
  • the synchronization signal is used by the terminal device 2 to synchronize the downlink frequency domain and time domain.
  • the synchronization signal may include a primary synchronization signal (PSS: Primary Synchronization Signal) and a secondary synchronization signal (Second Synchronization Signal).
  • PSS Primary Synchronization Signal
  • Second Synchronization Signal secondary synchronization signal
  • the synchronization signal may be used by the terminal device 2 to identify a cell identifier (also referred to as cell ID: Cell Identifier, PCI: Physical Cell Identifier).
  • the synchronization signal may be used for selection / identification / determination of a base station transmit beam used by the base station apparatus 3 in downlink beamforming and / or a terminal receive beam used by the terminal apparatus 2.
  • the synchronization signal may be used by the terminal device 2 to select / identify / determine the index of the base station transmission beam applied to the downlink signal by the base station device 3.
  • the synchronization signal, the primary synchronization signal, and the secondary synchronization signal used in NR may be referred to as NR-SS, NR-PSS, and NR-SSS, respectively.
  • the synchronization signal may be used to measure the quality of the cell. For example, received power (SSRP) and received quality (SSRQ) of synchronization signals may be used for measurement.
  • the synchronization signal may also be used to perform channel correction for some downlink physical channels.
  • the downlink reference signal (hereinafter, also simply referred to as a reference signal in the present embodiment) may be classified into a plurality of reference signals based on the application and the like.
  • a reference signal may be used for the reference signal: -DMRS (Demodulation Reference Signal) ⁇ CSI-RS (Channel State Information Reference Signal) ⁇ PTRS (Phase Tracking Reference Signal) -MRS (Mobility Reference Signal)
  • the DMRS may be used for channel compensation at the time of demodulation of the received modulated signal.
  • the DMRSs may be generally referred to as DMRSs for demodulation of the NR-PDSCH, demodulation of the NR-PDCCH, and / or demodulation of the NR-PBCH, or may be individually defined.
  • CSI-RS may be used for channel state measurement.
  • the PTRS may be used to track the phase, such as by movement of the terminal.
  • MRS may be used to measure reception quality from a plurality of base station apparatuses for handover.
  • a reference signal for compensating for phase noise may be defined in the reference signal.
  • At least a part of the plurality of reference signals may have the function of another reference signal.
  • a cell-specific reference signal in which at least one of the plurality of reference signals or other reference signals is individually set for the cell, the base station apparatus 3 or the transmission / reception point 4 Defined as a Beam-specific reference signal (BRS) for each transmission beam used by the UE and / or a UE-specific reference signal (URS) individually set for the terminal device 2 It may be done.
  • BRS Beam-specific reference signal
  • URS UE-specific reference signal individually set for the terminal device 2 It may be done.
  • At least one of the reference signals may be used for fine synchronization to the extent that numerology such as radio parameters and subcarrier intervals, window synchronization of FFT, etc. can be performed.
  • At least one of the reference signals may be used for Radio Resource Measurement (RRM). Also, at least one of the reference signals may be used for beam management. Radio resource measurement is also referred to below simply as measurement.
  • At least one of the reference signals may include a synchronization signal.
  • uplink radio communication between the terminal device 2 and the base station device 3 radio communication between the terminal device 2 and the base station device 3
  • the uplink physical channel is used to transmit information output from the upper layer.
  • ⁇ NR-PUCCH New Radio Physical Uplink Control CHannel
  • NR-PUSCH New Radio Physical Uplink Shared CHannel
  • NR-PRACH New Radio Physical Random Access CHannel
  • the NR-PUCCH is used to transmit uplink control information (UCI).
  • the uplink control information may include channel state information (CSI: Channel State Information) used to indicate the state of the downlink channel.
  • the uplink control information may include a scheduling request (SR: Scheduling Request) used to request a UL-SCH resource.
  • the uplink control information may include hybrid automatic repeat request acknowledgment (HARQ-ACK).
  • the HARQ-ACK may indicate an HARQ-ACK for downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH).
  • NR-PUSCH is used for transmission of uplink data (UL-SCH: Uplink Shared CHannel) from medium access control (MAC: Medium Access Control). Also, it may be used to transmit HARQ-ACK and / or CSI together with uplink data. Also, it may be used to transmit only CSI or only HARQ-ACK and CSI. That is, it may be used to transmit only UCI.
  • UL-SCH Uplink Shared CHannel
  • MAC Medium Access Control
  • the NR-PUSCH may be used to transmit RRC signaling and MAC control elements.
  • NR-PUSCH may be used for transmission of UE capability in the uplink.
  • the same designation (eg, NR-PCCH) and / or the same channel definition may be used for NR-PDCCH and NR-PUCCH.
  • the same designation (eg, NR-PSCH) and / or the same channel definition may be used for NR-PDSCH and NR-PUSCH.
  • BCH, UL-SCH and DL-SCH are transport channels.
  • a channel used in a medium access control (MAC) layer is called a transport channel.
  • a unit of transport channel used in the MAC layer is also referred to as transport block (TB) or MAC PDU (Protocol Data Unit).
  • Transport blocks are units of data that the MAC layer delivers to the physical layer. In the physical layer, transport blocks are mapped to code words, and coding processing is performed for each code word.
  • the sub frame of NR will be described below. Although this embodiment refers to a subframe, it may also refer to a resource unit, a wireless frame, a time interval, a time interval, and so on. Also, one or more subframes may constitute one wireless frame.
  • FIG. 4 is a diagram showing an example of a schematic configuration of a downlink slot according to the embodiment of the present invention.
  • Each wireless frame is 10 ms long.
  • each of the wireless frames is composed of 10 subframes and X slots. That is, the length of one subframe is 1 ms.
  • uplink slots may be similarly defined, and downlink slots and uplink slots may be defined separately.
  • the signal or physical channel transmitted in each of the slots may be represented by a resource grid.
  • a resource grid is defined by multiple subcarriers and multiple OFDM symbols. The number of subcarriers constituting one downlink and uplink slot depends on the downlink and uplink bandwidths of the cell, respectively.
  • Each of the elements in the resource grid is called a resource element. Resource elements may be identified using subcarrier numbers and OFDM symbol numbers.
  • a resource block is used to represent the mapping of resource elements of a certain physical downlink channel (PDSCH etc.) or uplink channel (PUSCH etc.).
  • resource blocks virtual resource blocks and physical resource blocks are defined.
  • Certain physical uplink channels are first mapped to virtual resource blocks.
  • the virtual resource blocks are then mapped to physical resource blocks.
  • Ru That is, one physical resource block is composed of (7 ⁇ 12) resource elements.
  • ECP Extended CP
  • one physical resource block is defined, for example, by six consecutive OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain.
  • one physical resource block is composed of (6 ⁇ 12) resource elements. At this time, one physical resource block corresponds to one slot in the time domain, and corresponds to 180 kHz (720 kHz in the case of 60 kHz) in the frequency domain with a subcarrier spacing of 15 kHz. Physical resource blocks are numbered from zero in the frequency domain.
  • FIG. 5 is a diagram showing the relationship between subframes, slots, and minislots in the time domain.
  • the subframes are 1 ms regardless of subcarrier spacing, the number of OFDM symbols included in a slot is 7 or 14, and the slot length varies depending on subcarrier spacing.
  • the slot length may be defined as 0.5 / ( ⁇ f / 15) ms when the subcarrier interval is ⁇ f (kHz) and the number of OFDM symbols constituting one slot is seven.
  • ⁇ f may be defined by subcarrier spacing (kHz).
  • the slot length may be defined as 1 / ( ⁇ f / 15) ms.
  • ⁇ f may be defined by subcarrier spacing (kHz).
  • the slot length may be defined as X / 14 / ( ⁇ f / 15) ms, where X is the number of OFDM symbols included in the slot.
  • a minislot (which may also be referred to as a subslot) is a time unit comprised of fewer OFDM symbols than the number of OFDM symbols contained in the slot.
  • the figure shows, as an example, the case where the minislot is composed of two OFDM symbols.
  • the OFDM symbols in the minislot may coincide with the OFDM symbol timing that comprises the slot.
  • the minimum unit of scheduling may be a slot or a mini slot.
  • FIG. 6 is a diagram showing an example of a slot or subframe (subframe type).
  • the slot length is 0.5 ms at a subcarrier spacing of 15 kHz is shown as an example.
  • D indicates downlink and U indicates uplink.
  • ⁇ Downlink part (duration) It may include one or more of gap and uplink parts (duration).
  • FIG. 6 (a) may also be referred to as a certain time interval (for example, the smallest unit of time resources that can be allocated to one UE, or a time unit, etc.) Also, a plurality of smallest units of time resources are bundled and referred to as a time unit.
  • uplink scheduling is performed via, for example, the PCCH on the first time resource, and the processing delay of the PCCH is performed.
  • uplink to downlink switching time and transmits an uplink signal via a gap for generation of a transmission signal.
  • FIG. 6 (c) is used for transmission of downlink PCCH and / or downlink PSCH on the first time resource, and processing delay, downlink to uplink switching time, and gap for transmission signal generation.
  • the uplink signal may be used for transmission of HARQ-ACK and / or CSI, ie UCI.
  • FIG. 6 (d) is used for transmission of downlink PCCH and / or downlink PSCH on the first time resource, and processing delay, downlink to uplink switching time, and gap for transmission signal generation. It is used for uplink PSCH and / or PCCH transmission.
  • the uplink signal may be used to transmit uplink data, that is, UL-SCH.
  • FIG. 6 (e) is an example used for all uplink transmission (uplink PSCH or PCCH).
  • the above-mentioned downlink part and uplink part may be composed of a plurality of OFDM symbols as in LTE.
  • a protocol stack for handling user data of the terminal device 2 and the base station device 3 is a user plane (UP (User-plane, U-Plane)) protocol stack, and a protocol stack for handling control data is a control protocol. (CP (Control-plane, C-Plane)) protocol stack.
  • UP User-plane, U-Plane
  • CP Control-plane, C-Plane
  • a physical layer (Physical layer: PHY layer) provides a transmission service to an upper layer using a physical channel (Physical Channel).
  • the PHY layer is connected to an upper medium access control layer (MAC layer) by a transport channel.
  • MAC layer medium access control layer
  • Data moves between the MAC layer, the PHY layer, and layers via transport channels.
  • Data transmission / reception is performed between the terminal device 2 and the PHY layer of the base station device 3 via physical channels.
  • the MAC layer maps various logical channels to various transport channels.
  • the MAC layer is connected to the upper Radio Link Control Layer (RLC layer) by a logical channel.
  • Logical channels are roughly divided according to the type of information to be transmitted, and are divided into control channels for transmitting control information and traffic channels for transmitting user information.
  • the MAC layer has a function of controlling the PHY layer to perform intermittent reception / transmission (DRX / DTX), a function of executing a random access procedure, a function of notifying transmission power information, and a function of performing HARQ control.
  • the RLC layer segments the data received from the upper layer and adjusts the data size so that the lower layer can appropriately transmit data.
  • the RLC layer also has a function to guarantee QoS (Quality of Service) required by each data. That is, the RLC layer has functions such as retransmission control of data.
  • the Packet Data Convergence Protocol layer (PDCP layer) has a header compression function that compresses unnecessary control information in order to efficiently transmit IP packets that are user data in the wireless section. Good.
  • the PDCP layer may also have a function of data encryption.
  • the control plane protocol stack includes a Radio Resource Control layer (RRC layer).
  • the RRC layer performs radio bearer (Radio Bearer: RB) setup / reconfiguration, and controls logical channels, transport channels, and physical channels.
  • the RB may be divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB), and the SRB is used as a path for transmitting an RRC message, which is control information. May be
  • the DRB may be used as a path for transmitting user data.
  • the setting of each RB may be performed between the RRC layers of the base station device 3 and the terminal device 2.
  • the SRB is defined as a radio bearer used to transmit RRC and NAS messages.
  • SRB is SRB (SRB0) for RRC message using CCCH logical channel
  • SRB (SRB1) for NAS message transmitted prior to RRC message and SRB2 establishment using DCCH logical channel
  • DCCH logic An SRB (SRB2) for an RRC message may be defined, including a NAS message using a channel and Logged measurement information etc. Also, other SRBs may be defined.
  • MCG SRB is transmitted using SRB of MCG.
  • MCG Split SRB is transmitted using SRG of MCG or SCG, since PDCP is arranged on the MCG side, it is herein described as MCG SRB. That is, “MCG SRB” may be replaced with “MCG SRB and / or MCG Split SRB”.
  • the SCG SRB is transmitted using the SCG SRB.
  • SCG Split SRB is transmitted using SRG of MCG or SCG, since PDCP is arranged on the SCG side, it will be described as SCG SRB in this specification. That is, "SCG SRB” may be replaced with "SCG SRB and / or SCG Split SRB".
  • SRB0, SRB1 and SRB2 may be prepared for MCG SRB.
  • SRB0 and / or SRB1 may not be prepared for SCG SRB.
  • the MCG SRB may send NAS messages and RRC messages, and the SCG SRB may send RRC messages. In the SCG SRB, it may be possible not to send NAS messages.
  • the PHY layer corresponds to the physical layer of the first layer in the hierarchical structure of the generally known Open Systems Interconnection (OSI) model, and the MAC layer, RLC layer and PDCP layer are OSI.
  • the RRC layer corresponds to the second layer of the model, the data link layer, and the RRC layer corresponds to the third layer of the OSI model, the network layer.
  • the above functional classification of the MAC layer, the RLC layer and the PDCP layer is an example, and some or all of the functions may not be implemented. Also, some or all of the functions of each layer may be included in other layers.
  • the control elements of the MAC layer and RRC signaling are higher layer signals.
  • RRC signaling is an upper layer signal.
  • the MAC layer and the physical layer are lower layers.
  • the NAS layer is also referred to as the Upper Layer.
  • the signaling protocol used between the network and the terminal device 2 is divided into an Access Stratum (AS) protocol and a Non-Access Stratum (NAS) protocol.
  • AS Access Stratum
  • NAS Non-Access Stratum
  • the protocol below the RRC layer is an access layer protocol used between the terminal device 2 and the base station device 3.
  • protocols such as connection management (CM) of the terminal device 2 and mobility management (MM) are non-access layer protocols, and are used between the terminal device 2 and the core network (CN).
  • CM connection management
  • MM mobility management
  • CN core network
  • communication using a non-access layer protocol is transparently performed via the base station apparatus 3 between the terminal device 2 and a mobile management entity (MME).
  • MME mobile management entity
  • the base station device 3 transmits a measurement configuration message (Measurement configuration) to the terminal device 2 using an RRC connection reconfiguration (RRC Connection Reconfiguration) message of RRC signaling (radio resource control signal).
  • the terminal device 2 sets the system information included in the measurement configuration message, and according to the notified system information, the serving cell and the neighboring cell (listed cell and / or detected cell).
  • Measurement, event evaluation, and measurement The list cell is a cell listed in the measurement object (a cell notified from the base station device 3 to the terminal device 2 as an adjacent cell list).
  • the detection cell is a cell detected by the terminal device 2 at a frequency instructed by the measurement object (Measurement object) but not listed in the measurement object (the terminal device 2 itself not notified of as the adjacent cell list) Detected cell).
  • Intra-frequency measurements are measurements on the downlink frequency (downlink frequency) of the serving cell.
  • Inter-frequency measurements are measurements at frequencies different from the downlink frequency of the serving cell.
  • Inter-RAT measurements are measurements on a radio technology (eg, UTRA, GERAN, CDMA2000, etc.) different from that of the serving cell (eg, EUTRA).
  • inter-radio access technology measurements may include NR measurements.
  • Measurement configuration (Measurement configuration) message includes measurement identifier (measId), measurement objects (Measurement objects), reporting configuration (Reporting configurations) setting addition and / or modification and / or deletion, quantity configuration (quantityConfig), measurement gap Configuration (measGapConfig), serving cell quality threshold (s-Measure), etc. are included.
  • QuantityConfig designates the layer 3 filter coefficient (L3 filtering coefficient) when the measurement object (Measurement objects) is EUTRA.
  • the third layer filter coefficient (L3 filtering coefficient) defines a ratio (proportion) between the latest measurement result and the past filtering measurement result.
  • the filtering result is used by the terminal device 2 for event evaluation.
  • Measurement gap setting (measGapConfig) is used to set measurement gap pattern (measurement gap pattern) and to control activation (activation) / deactivation (deactivation) of measurement gap (measurement gap).
  • a gap pattern (gap pattern), a start system frame number (startSFN), and a start subframe number (startSubframeNumber) are notified as information for activating the measurement gap.
  • the gap pattern (gap pattern) defines which pattern to use as a measurement gap (measurement gap).
  • the start system frame number (startSFN) defines an SFN (System Frame Number) that starts a measurement gap.
  • the start subframe number (startSubframeNumber) defines the subframe number that starts the measurement gap.
  • the measurement gap setting may be set independently for each cell, each cell group, each component carrier, each serving cell, or each predetermined frequency range.
  • the serving cell quality threshold represents a threshold related to the quality of the serving cell, and is used to control whether the terminal device 2 needs to perform measurement.
  • the serving cell quality threshold is set as a value for reference signal received power (RSRP).
  • the measurement identifier (measId) is used to link the measurement object (Measurement objects) and the reporting configuration (Reporting configurations). Specifically, the measurement object identifier (measObjectId) and the report configuration identifier (reportConfigId) Link with). One measurement target identifier (measObjectId) and one report configuration identifier (reportConfigId) are associated with the measurement identifier (measId). Measurement configuration (Measurement configuration) messages can be added, modified, or deleted with respect to the relationship between measurement identifiers (measId), measurement objects (Measurement objects), and reporting configurations (Reporting configurations).
  • MeasObjectToRemoveList is a command to delete the measurement objects (Measurement objects) corresponding to the specified measurement object identifier (measObjectId) and the specified measurement object identifier (measObjectId). At this time, all measurement identifiers (measId) associated with the designated measurement target identifier (measObjectId) are deleted. This command can specify a plurality of measurement target identifiers (measObjectId) at the same time.
  • measObjectToAddModifyList is a command to modify the specified measurement object identifier (measObjectId) to the specified measurement object (Measurement objects) or add the specified measurement object identifier (measObjectId) and the specified measurement object (Measurement objects) It is.
  • This command can specify a plurality of measurement target identifiers (measObjectId) at the same time.
  • ReportConfigToRemoveList is a command for deleting the designated report configuration identifier (reportConfigId) and the report configuration (Reporting configurations) corresponding to the designated report configuration identifier (reportConfigId). At this time, all measurement identifiers (measId) associated with the designated report configuration identifier (reportConfigId) are deleted. This command can specify multiple report configuration identifiers (reportConfigId) at the same time.
  • reportConfigToAddModifyList is a command to modify the specified report configuration identifier (reportConfigId) to the specified report configuration (Reporting configurations) or add the specified report configuration identifier (reportConfigId) and the specified report configuration (Reporting configurations) It is.
  • This command can specify multiple report configuration identifiers (reportConfigId) at the same time.
  • MeasIdToRemoveList is a command to remove the specified measurement identifier (measId).
  • the measurement target identifier (measObjectId) and the report configuration identifier (reportConfigId) associated with the designated measurement identifier (measId) are maintained without being deleted.
  • This command can specify multiple measurement identifiers (measId) at the same time.
  • measIdToAddModifyList is modified to associate the specified measurement identifier (measId) with the specified measurement target identifier (measObjectId) and the specified report configuration identifier (reportConfigId), or specifies the specified measurement target identifier (measObjectId) It is a command that associates the designated report configuration identifier (reportConfigId) with the designated measurement identifier (measId) and adds the designated measurement identifier (measId). This command can specify multiple measurement identifiers (measId) at the same time.
  • Measurement objects are defined for each RAT and frequency. Also, there are provisions for reporting configurations (Reporting configurations) for EUTRA and for RATs other than EUTRA.
  • measurement target EUTRA (measObjectEUTRA) associated with measurement target identifier (measObjectId)
  • measurement target UTRA (measObject UTRA)
  • measurement target GERAN (measObjectGERAN)
  • measurement target CDMA2000 (measObjectCDMA2000)
  • measurement target WLAN (measObjectWLAN) etc.
  • the measurement objects may include the measurement object NR (measObjectNR) associated with the measurement object identifier (measObjectId).
  • the measurement target identifier (measObjectId) is an identifier used to identify the setting of the measurement objects.
  • the configuration of Measurement objects is defined for each radio access technology (RAT) and frequency as described above. Measurement objects are separately specified for EUTRA, UTRA, GERAN, and CDMA2000.
  • the measurement target EUTRA (measObjectEUTRA), which is Measurement objects for EUTRA, defines information to be applied to neighboring cells of EUTRA. Moreover, the thing of a different frequency among measurement object EUTRA (measObjectEUTRA) is handled as a different measurement object (Measurement objects), and a measurement object identifier (measObjectId) is allocated separately.
  • Measurement target EUTRA includes EUTRA carrier frequency information (eutra-CarrierInfo), measurement bandwidth (measurementBandwidth), offset frequency (offsetFreq), information on neighbor cell list (neighbour cell list), black list (black list) Information is included.
  • EUTRA carrier frequency information designates a carrier frequency to be measured.
  • the measurement bandwidth indicates the measurement bandwidth common to all adjacent cells operating at the carrier frequency to be measured.
  • the offset frequency indicates the measurement offset value applied at the frequency to be measured.
  • the information on the neighboring cell list includes event evaluation and information on neighboring cells to be subjected to measurement report.
  • the information on the neighbor cell list includes physical cell identifier (physical cell ID), cell specific offset (cellIndividualOffset, indicating a measurement offset value to be applied to a neighbor cell), and the like.
  • physical cell ID physical cell ID
  • cellIndividualOffset cellIndividualOffset, indicating a measurement offset value to be applied to a neighbor cell
  • EUTRA this information is added, corrected or deleted from the neighbor cell list already acquired from the broadcast information (system information to be broadcast) by the terminal device 2 It is used as information of
  • the information on the black list includes information on event evaluation and neighboring cells not to be subjected to measurement report.
  • Information on the black list includes a physical cell identifier (physical cell ID) and the like. In the case of EUTRA, this information is used as information for the terminal device 2 to perform addition / modification or deletion on a black cell list already acquired from broadcast information.
  • the report configuration includes, for example, a report configuration EUTRA (reportConfigEUTRA) associated with a report configuration identifier (reportConfigId).
  • the report configuration identifier (reportConfigId) is an identifier used to identify reporting configurations for measurement. As described above, Reporting configurations for measurement have provisions for EUTRA and requirements for RATs other than EUTRA (UTRA, GERAN, CDMA2000). Reporting configuration EUTRA (reportConfigEUTRA), which is a reporting configuration for EUTRA, defines triggering conditions (triggering criteria) of an event used to report a measurement in EUTRA.
  • an event identifier (eventId), trigger amount (triggerQuantity), hysteresis (hysteresis), trigger time (timeToTrigger), report amount (reportQuantity), maximum number of report cells (maxReportCells), report interval (ReportInterval), report count (reportAmount) is included.
  • event triggered reporting is a method of reporting a measurement when an event triggered condition is satisfied.
  • event triggered periodic report that reports measurements a certain number of times at regular intervals (event triggered periodic) There is also reporting.
  • the terminal device 2 sends a measurement report (measurement report) to the base station device 3.
  • the trigger amount is an amount used to evaluate an event trigger condition. That is, reference signal received power (RSRP) or reference signal received quality (RSRQ) is specified. That is, the terminal device 2 measures the downlink reference signal using the amount specified by the trigger amount (triggerQuantity), and determines whether the event trigger condition specified by the event identifier (eventId) is satisfied.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • the terminal device 2 measures the downlink reference signal using the amount specified by the trigger amount (triggerQuantity), and determines whether the event trigger condition specified by the event identifier (eventId) is satisfied.
  • Determine Hysteresis is a parameter used in event trigger conditions.
  • the trigger time indicates a period for which the event trigger condition should be satisfied.
  • ReportQuantity indicates the amount to be reported in the measurement report.
  • the amount specified by the trigger amount (triggerQuantity), or the reference signal received power (RSRP) and the reference signal received quality (RSRQ) are specified.
  • reference signal reception quality (RSRQ) is a ratio represented by (N * RSRP) / (EUTRA Carrier RSSI).
  • the received signal strength (EUTRA Carrier RSSI) indicates the strength of the total received signal power, and the measurement bandwidth is the same as the system bandwidth.
  • N is the number of resource blocks (RBs) related to the measurement bandwidth of received signal strength (EUTRA Carrier RSSI).
  • the maximum number of report cells indicates the maximum number of cells to be included in the measurement report.
  • the report interval (reportInterval) is used for periodical reporting (periodical reporting) or event triggered periodical report (event triggered periodic reporting), and periodically reports at intervals indicated by the report interval (reportInterval).
  • the number of report times (reportAmount) defines the number of times of periodical reporting as necessary.
  • the threshold parameters and offset parameters (a1_Threshold, a2_Threshold, a3_Offset, a4_Threshold, a5_Threshold1, a5_Threshold2, a6_Offset, c1_Threshold, c2_Offset) used in the event trigger conditions described later are the event identifiers (eventId) and the report settings EUTRA (reportConfigEUTRA). The terminal device 2 is notified together.
  • a plurality of event trigger conditions for performing measurement report are defined, and there are respectively a joining condition and a leaving condition. That is, the terminal device 2 that satisfies the subscription condition for the event specified by the base station device 3 transmits a measurement report (measurement report) to the base station device 3. In addition, when the terminal device 2 satisfying the withdrawal condition for the event specified by the base station device 3 is set to trigger a report when the base station device 3 satisfies the withdrawal condition (reportOnLeave When it is included, a measurement report (measurement report) is transmitted to the base station device 3. The following are the join and leave conditions for each event.
  • Ms is the measurement result for the serving cell (does not consider the cell-specific measurement offset value).
  • Mn is a measurement result with respect to a neighboring cell (neighbour cell).
  • Mcr is a measurement result of CSI-RS resources (does not consider any measurement offset value).
  • Mref is a measurement result of a reference CSI-RS resource (does not consider any measurement offset value).
  • the reference CSI-RS resource is defined as c2-RefCSI-RS notified by the measurement target EUTRA (measObjectEUTRA).
  • Hys is a hysteresis parameter for an event of interest.
  • Ofn is a frequency-specific measurement offset value for the frequency of the adjacent cell. Ofn corresponds to the offset frequency (offsetFreq) of the measurement target EUTRA (measObjectEUTRA). For intra-frequency measurements, Ofn is the same as Ofs. In the case of inter-frequency measurements, Ofn is an offset frequency (offsetFreq) included in the measurement target EUTRA (measObjectEUTRA) corresponding to the downlink frequency different from the serving cell.
  • offsetFreq offset frequency included in the measurement target EUTRA (measObjectEUTRA) corresponding to the downlink frequency different from the serving cell.
  • Ocn is a cell-specific measurement offset value for an adjacent cell. Ocn corresponds to the cell specific offset (cellIndividualOffset) of the measurement target EUTRA (measObjectEUTRA). If Ocn is not set, the measurement offset value is set to 0. In the case of intra-frequency measurements, Ocn is a cell-specific offset (cellIndividualOffset) included in the measurement target EUTRA (measObjectEUTRA) of the same downlink frequency as the serving cell. In the case of inter-frequency measurements, Ocn is a cell-specific offset (cellIndividualOffset) included in the measurement target EUTRA (measObjectEUTRA) corresponding to the downlink frequency different from the serving cell.
  • cellIndividualOffset cellIndividualOffset
  • Ocr is a CSI-RS specific measurement offset value.
  • Ocr corresponds to the CSI-RS unique offset (csi-RS-IndividualOffset) of the measurement target EUTRA (measObjectEUTRA) related to the frequency of the CSI-RS resource. If Ocr is not set, the measurement offset value is set to 0.
  • offsetFreq offset frequency of the measurement target EUTRA
  • Ocs is a cell-specific measurement offset value for the serving cell. Ocs is included in the cell-specific offset (cellIndividualOffset) of the measurement target EUTRA (measObjectEUTRA) of the frequency of the serving cell.
  • A1_Threshold is a threshold parameter used for event A1.
  • a2_Threshold is a threshold parameter used for event A2.
  • a3_Offset is an offset parameter used for event A3.
  • a4_Threshold is a threshold parameter used for event A4.
  • a5_Threshold1 and a5_Threshold2 are threshold parameters used for event A5.
  • a6_Offset is an offset parameter used for event A6.
  • c1_Threshold is a threshold parameter used for the event C1.
  • c2_Offset is an offset parameter used for the event C2.
  • the terminal device 2 generates each event according to the measurement result Ms of the serving cell and the measurement result Mn of the adjacent cell. If the measurement result Ms of the serving cell is better than the threshold a1_Threshold after application of each parameter, an event A1 occurs, and if it is worse than the threshold a2_Threshold, an event A2 occurs. When the measurement result Mn of the adjacent cell is better than the serving cell measurement result Ms and the offset a3_Offset after the application of each parameter, an event A3 occurs and the measurement result Mn of the adjacent cell is better than the threshold a4_Threshold after the application of each parameter , Event A4 occurs.
  • a plurality of trigger conditions (triggering criteria) of an event used to report measurements in RATs other than EUTRA are defined in report configuration InterRAT (reportConfigInterRAT) which is a report configuration (Reporting configurations) for RATs other than EUTRA.
  • reportConfigInterRAT is a report configuration (Reporting configurations) for RATs other than EUTRA.
  • the base station apparatus 3 may or may not notify the serving cell quality threshold (s-Measure).
  • the serving cell quality threshold (s-Measure) is set in the terminal device 2 by the base station apparatus 3, and the quality (RSRP value) after layer 3 filtering of the PCell that is the serving cell (serving cell) is the serving cell quality threshold (s-Measure) When it is lower than this, it measures adjacent cells of the frequency and RAT indicated by the measurement target.
  • the serving cell quality threshold (s-Measure) is not set in the terminal device 2 by the base station device 3, the terminal device 2 measures adjacent cells regardless of the quality of the serving cell (RSRP value).
  • Non-Patent Document 3 when the measurement target is NR, adjacent cells are measured regardless of the setting of the serving cell quality threshold.
  • the terminal device 2 that satisfies the event trigger condition transmits a measurement report (Measurement report) to the base station device 3.
  • the measurement report (Measurement report) includes a measurement result (Measurement result).
  • the measurement result includes a measurement identifier (measId), a serving cell measurement result (measResultServing), and an EUTRA measurement result list (measResultListEUTRA).
  • the EUTRA measurement result list includes a physical cell identifier (physicalCellIdentity) and an EUTRA cell measurement result (measResultEUTRA).
  • the measurement identifier is an identifier used for the link between the measurement target identifier (measObjectId) and the report configuration identifier (reportConfigId).
  • the serving cell measurement result is a measurement result for the serving cell, and reports the result of both reference signal received power (RSRP) and reference signal received quality (RSRQ) for the serving cell.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • the measurement results for the serving cell are always included in the measurement results.
  • physicalCellIdentity is used to identify a cell.
  • EUTRA cell measurement result (measResultEUTRA) is a measurement result for EUTRA cell. The measurement results of neighboring cells are included only when the related event occurs.
  • a measurement setting and measurement reporting scheme equivalent to LTE may be used. For example, addition and / or modification and / or deletion of the setting of measurement identifier (measId), measurement object (Measurement objects), and reporting configuration (Reporting configurations) in the measurement configuration (Measurement configuration) message of NR, quantity configuration (quantityConfig) , Measurement gap setting (measGapConfig), serving cell quality threshold (s-Measure), etc. may be included.
  • NR carrier frequency information (eutra-CarrierInfo), measurement bandwidth (measurementBandwidth), offset frequency (offsetFreq), information on adjacent cell list (neighbour cell list), black list (black list)
  • report configuration NR may include information on event trigger report.
  • the event trigger condition may include at least an event equivalent to the events A1 to A6 in LTE.
  • reference signal reception power may be replaced with a synchronization signal reception power (SSRP) when a synchronization signal is used for measurement.
  • reference signal reception quality may be replaced with synchronization signal reception quality (SSRQ) if a synchronization signal is used for measurement.
  • the base station device 3 transmits a measurement configuration message (Measurement configuration) to the terminal device 2 using an RRC connection reconfiguration (RRC Connection Reconfiguration) message of RRC signaling (radio resource control signal).
  • the terminal device 2 sets the system information included in the measurement configuration message, and according to the notified system information, the serving cell and the neighboring cell (listed cell and / or detected cell).
  • Measurement, event evaluation, and measurement The list cell is a cell listed in the measurement object (a cell notified from the base station device 3 to the terminal device 2 as an adjacent cell list), and the detection cell is determined by the measurement object. It is a cell detected by the terminal device 2 at the instructed frequency but not listed in the measurement object (a cell detected by the terminal device 2 itself not notified as an adjacent cell list).
  • Intra-frequency measurements are measurements on the downlink frequency (downlink frequency) of the serving cell.
  • Inter-frequency measurements are measurements at frequencies different from the downlink frequency of the serving cell.
  • Inter-RAT measurements are measurements on a radio technology (eg, EUTRA, UTRA, GERAN, CDMA2000, etc.) different from that of the serving cell (eg, NR).
  • Measurement configuration (Measurement configuration) message includes measurement identifier (measId), measurement objects (Measurement objects), reporting configuration (Reporting configurations) setting addition and / or modification and / or deletion, quantity configuration (quantityConfig), measurement gap Configuration (measGapConfig), serving cell quality threshold (s-Measure), etc. are included.
  • the quantity configuration (quantityConfig) may specify the layer 3 filter coefficient (L3 filtering coefficient) when the measurement object (Measurement objects) is NR or EUTRA.
  • the third layer filter coefficient (L3 filtering coefficient) defines a ratio (proportion) between the latest measurement result and the past filtering measurement result.
  • the filtering result is used by the terminal device 2 for event evaluation.
  • Measurement gap setting (measGapConfig) is used to set measurement gap pattern (measurement gap pattern) and to control activation (activation) / deactivation (deactivation) of measurement gap (measurement gap).
  • a gap pattern (gap pattern), a start system frame number (startSFN), and a start subframe number (startSubframeNumber) are notified as information for activating the measurement gap.
  • the gap pattern (gap pattern) defines which pattern to use as a measurement gap (measurement gap).
  • the start system frame number (startSFN) defines an SFN (System Frame Number) that starts a measurement gap.
  • the start subframe number (startSubframeNumber) defines the subframe number that starts the measurement gap.
  • the measurement gap setting may be set independently for each cell, each cell group, each component carrier, each serving cell, or each predetermined frequency range.
  • the serving cell quality threshold represents a threshold related to the quality of the serving cell, and is used to control whether the terminal device 2 needs to perform measurement.
  • the serving cell quality threshold is set as a value for reference signal received power (RSRP) or synchronization signal received power (SSRP).
  • the measurement identifier (measId) is used to link the measurement object (Measurement objects) and the reporting configuration (Reporting configurations). Specifically, the measurement object identifier (measObjectId) and the report configuration identifier (reportConfigId) Link with). One measurement target identifier (measObjectId) and one report configuration identifier (reportConfigId) are associated with the measurement identifier (measId). Measurement configuration (Measurement configuration) messages can be added, modified, or deleted with respect to the relationship between measurement identifiers (measId), measurement objects (Measurement objects), and reporting configurations (Reporting configurations).
  • MeasObjectToRemoveList is a command to delete the measurement objects (Measurement objects) corresponding to the specified measurement object identifier (measObjectId) and the specified measurement object identifier (measObjectId). At this time, all measurement identifiers (measId) associated with the designated measurement target identifier (measObjectId) are deleted. This command can specify a plurality of measurement target identifiers (measObjectId) at the same time.
  • measObjectToAddModifyList is a command to modify the specified measurement object identifier (measObjectId) to the specified measurement object (Measurement objects) or add the specified measurement object identifier (measObjectId) and the specified measurement object (Measurement objects) It is.
  • This command can specify a plurality of measurement target identifiers (measObjectId) at the same time.
  • ReportConfigToRemoveList is a command for deleting the designated report configuration identifier (reportConfigId) and the report configuration (Reporting configurations) corresponding to the designated report configuration identifier (reportConfigId). At this time, all measurement identifiers (measId) associated with the designated report configuration identifier (reportConfigId) are deleted. This command can specify multiple report configuration identifiers (reportConfigId) at the same time.
  • reportConfigToAddModifyList is a command to modify the specified report configuration identifier (reportConfigId) to the specified report configuration (Reporting configurations) or add the specified report configuration identifier (reportConfigId) and the specified report configuration (Reporting configurations) It is.
  • This command can specify multiple report configuration identifiers (reportConfigId) at the same time.
  • MeasIdToRemoveList is a command to remove the specified measurement identifier (measId).
  • the measurement target identifier (measObjectId) and the report configuration identifier (reportConfigId) associated with the designated measurement identifier (measId) are maintained without being deleted.
  • This command can specify multiple measurement identifiers (measId) at the same time.
  • measIdToAddModifyList is modified to associate the specified measurement identifier (measId) with the specified measurement target identifier (measObjectId) and the specified report configuration identifier (reportConfigId), or specifies the specified measurement target identifier (measObjectId) It is a command that associates the designated report configuration identifier (reportConfigId) with the designated measurement identifier (measId) and adds the designated measurement identifier (measId). This command can specify multiple measurement identifiers (measId) at the same time.
  • Measurement objects are defined for each RAT and frequency.
  • Measurement objects are defined for reporting configurations (Reporting configurations), and provisions for RATs other than NR.
  • Measurement objects include measurement target NR (measObjectNR) associated with a measurement target identifier (measObjectId), measurement target EUTRA (measObjectEUTRA), measurement target UTRA (measObjectUTRA), measurement target GERAN (measObjectGERAN), and measurement target CDMA2000 (measObjectCDMA2000), measurement object WLAN (measObjectWLAN), etc. are included.
  • measurement target NR measObjectNR
  • Measurement objects include measurement target NR (measObjectNR) associated with a measurement target identifier (measObjectId), measurement target EUTRA (measObjectEUTRA), measurement target UTRA (measObjectUTRA), measurement target GERAN (measObjectGERAN), and measurement target CDMA2000 (measObjectCDMA2000), measurement object WLAN (measObjectWLAN), etc.
  • the measurement target identifier (measObjectId) is an identifier used to identify the setting of the measurement objects.
  • the configuration of Measurement objects is defined for each radio access technology (RAT) and frequency as described above. Measurement objects are specified separately for NR, EUTRA, UTRA, GERAN, and CDMA2000.
  • the measurement object NR (measObjectNR), which is a measurement object for the NR, defines information to be applied to adjacent cells of the NR. Moreover, the thing of a different frequency among measurement object NR (measObjectNR) is handled as a different measurement object (Measurement objects), and a measurement object identifier (measObjectId) is allocated separately.
  • NRs to be measured measObjectNR
  • NR carrier frequency information nr-CarrierInfo
  • measurement bandwidth measurement bandwidth
  • offset frequency offset frequency
  • neighbor cell list neighbored cell list
  • blacklist black list
  • NR carrier frequency information designates a carrier frequency to be measured.
  • the measurement bandwidth indicates the measurement bandwidth common to all adjacent cells operating at the carrier frequency to be measured.
  • the offset frequency indicates the measurement offset value applied at the frequency to be measured.
  • the information on the neighboring cell list includes event evaluation and information on neighboring cells to be subjected to measurement report.
  • the information on the neighbor cell list includes physical cell identifier (physical cell ID), cell specific offset (cellIndividualOffset, indicating a measurement offset value to be applied to a neighbor cell), and the like.
  • physical cell ID physical cell ID
  • cellIndividualOffset cellIndividualOffset, indicating a measurement offset value to be applied to a neighbor cell
  • this information is added, corrected or deleted from the neighbor cell list already acquired from the broadcast information (system information to be broadcasted) by the terminal device 2 May be used as
  • the information on the black list includes information on event evaluation and neighboring cells not to be subjected to measurement report.
  • Information on the black list includes a physical cell identifier (physical cell ID) and the like. In the case of NR, this information may be used as information for the terminal device 2 to perform addition, correction, or deletion on a black cell list already acquired from broadcast information. .
  • the report configuration includes, for example, a report configuration NR (reportConfigNR) associated with the report configuration identifier (reportConfigId).
  • the report configuration identifier (reportConfigId) is an identifier used to identify reporting configurations for measurement.
  • Reporting configurations for measurement have provisions for NR and for RATs other than NR (EUTRA, UTRA, GERAN, CDMA2000).
  • Reporting configuration NR (reporting configuration) for NR defines reporting conditions (triggering criteria) of an event used for reporting of measurement in NR.
  • report setting NR (reportConfigNR), event identifier (eventId), trigger amount (triggerQuantity), hysteresis (hysteresis), trigger time (timeToTrigger), report amount (reportQuantity), maximum number of report cells (maxReportCells), report interval (ReportInterval), part or all of the number of reports (reportAmount) may be included.
  • event triggered reporting is a method of reporting a measurement when an event triggered condition is satisfied.
  • event triggered periodic reporting in which measurement is reported a certain number of times at regular intervals when an event triggered condition is satisfied.
  • the terminal device 2 performs measurement report (measurement report) to the base station device 3.
  • the trigger amount is an amount used to evaluate an event trigger condition. That is, synchronization signal reception power (SSRP) or synchronization signal reception quality (SSRQ) is specified. That is, the terminal device 2 measures the downlink synchronization signal using the amount specified by the trigger amount (triggerQuantity), and determines whether the event trigger condition specified by the event identifier (eventId) is satisfied. Determine if Hysteresis is a parameter used in event trigger conditions.
  • the trigger time indicates a period for which the event trigger condition should be satisfied.
  • ReportQuantity indicates the amount to be reported in the measurement report.
  • an amount specified by the trigger amount (triggerQuantity), or synchronization signal reception power (SSRP) or synchronization signal reception quality (SSRQ) is specified.
  • the synchronization signal reception quality (SSRQ) is a ratio represented by (N * SSRP) / (NR Carrier RSSI).
  • the received signal strength indicates the strength of the total received signal power, and the measurement bandwidth is the same as the system bandwidth.
  • N is the number of resource blocks (RBs) related to the measurement bandwidth of received signal strength (NR Carrier RSSI).
  • the maximum number of report cells indicates the maximum number of cells to be included in the measurement report.
  • the report interval (reportInterval) is used for periodical reporting (periodical reporting) or event triggered periodical report (event triggered periodic reporting), and periodically reports at intervals indicated by the report interval (reportInterval).
  • the number of report times (reportAmount) defines the number of times of periodical reporting as necessary.
  • threshold parameters and offset parameters (a1_Threshold, a2_Threshold, a3_Offset, a4_Threshold, a5_Threshold1, a5_Threshold2, a6_Offset) used in the event trigger conditions described later, together with the event identifier (eventId) in the report configuration NR (reportConfigNR), The device 2 is notified.
  • a plurality of event trigger conditions for performing measurement report are defined, and there are respectively a joining condition and a leaving condition. That is, the terminal device 2 that satisfies the subscription condition for the event specified by the base station device 3 transmits a measurement report (measurement report) to the base station device 3. In addition, when the terminal device 2 satisfying the withdrawal condition for the event specified by the base station device 3 is set to trigger a report when the base station device 3 satisfies the withdrawal condition (reportOnLeave When it is included, a measurement report (measurement report) is transmitted to the base station device 3. The following are the join and leave conditions for each event.
  • Ms is the measurement result for the serving cell (does not consider the cell-specific measurement offset value).
  • Mn is a measurement result with respect to a neighboring cell (neighbour cell).
  • Hys is a hysteresis parameter for an event of interest.
  • Ofn is a frequency-specific measurement offset value for the frequency of the adjacent cell. Ofn corresponds to the offset frequency (offsetFreq) of the measurement target NR (measObjectNR). For intra-frequency measurements, Ofn is the same as Ofs. In the case of inter-frequency measurements, Ofn is an offset frequency (offsetFreq) included in the measurement target NR (measObjectNR) corresponding to the downlink frequency different from the serving cell.
  • offsetFreq offset frequency included in the measurement target NR (measObjectNR) corresponding to the downlink frequency different from the serving cell.
  • Ocn is a cell-specific measurement offset value for an adjacent cell. Ocn corresponds to the cell specific offset (cellIndividualOffset) of the measurement target NR (measObjectNR). If Ocn is not set, the measurement offset value is set to 0. In the case of intra-frequency measurements, Ocn is a cell-specific offset (cellIndividualOffset) included in the measurement target NR (measObjectNR) of the same downlink frequency as the serving cell. In the case of inter-frequency measurements, Ocn is a cell-specific offset (cellIndividualOffset) included in the measurement target EUTRA (measObjectEUTRA) corresponding to the downlink frequency different from the serving cell.
  • cellIndividualOffset cellIndividualOffset
  • EUTRA measObjectEUTRA
  • OffsetFreq offset frequency of the measurement target NR
  • Ocs is a cell-specific measurement offset value for the serving cell. Ocs is included in the cell specific offset (cellIndividualOffset) of the measurement target NR (measObjectNR) of the frequency of the serving cell.
  • A1_Threshold is a threshold parameter used for event A1.
  • a2_Threshold is a threshold parameter used for event A2.
  • a3_Offset is an offset parameter used for event A3.
  • a4_Threshold is a threshold parameter used for event A4.
  • a5_Threshold1 and a5_Threshold2 are threshold parameters used for event A5.
  • a6_Offset is an offset parameter used for event A6.
  • the terminal device 2 generates each event according to the measurement result Ms of the serving cell and the measurement result Mn of the adjacent cell. If the measurement result Ms of the serving cell is better than the threshold a1_Threshold after application of each parameter, an event A1 occurs, and if it is worse than the threshold a2_Threshold, an event A2 occurs. When the measurement result Mn of the adjacent cell is better than the serving cell measurement result Ms and the offset a3_Offset after the application of each parameter, an event A3 occurs and the measurement result Mn of the adjacent cell is better than the threshold a4_Threshold after the application of each parameter , Event A4 occurs.
  • a trigger condition (triggering criteria) of an event used to report a measurement in the non-NR RAT may be defined.
  • an event B1 may be generated if the measurement result of the adjacent cell (other RAT) is better than the threshold b1_Threshold set for each RAT after the application of each parameter.
  • the measurement result of PCell is worse than threshold b2_Threshold 1 after application of each parameter and the measurement result of adjacent cell (other RAT) is better than threshold b2_Threshold 2 set for each RAT after application of each parameter, an event B2 may be generated.
  • the base station apparatus 3 may or may not notify the serving cell quality threshold (s-Measure).
  • the serving cell quality threshold (s-Measure) is set in the terminal device 2 by the base station apparatus 3, and the quality (RSRP value or SSRP value) after layer 3 filtering of the PCell or PSCell that is the serving cell is the serving cell quality threshold.
  • the adjacent cell of the frequency and RAT instructed by the measurement target is measured.
  • the serving cell quality threshold (s-Measure) is not set in the terminal device 2 by the base station device 3, the terminal device 2 measures adjacent cells regardless of the quality of the serving cell (RSRP value or SSRP value).
  • the terminal device 2 that satisfies the event trigger condition transmits a measurement report (Measurement report) to the base station device 3.
  • the measurement report (Measurement report) includes a measurement result (Measurement result).
  • the measurement result includes a measurement identifier (measId), a serving cell measurement result (measResultServing), and an NR measurement result list (measResultListNR).
  • the NR measurement result list may include a physical cell identifier (physicalCellIdentity) and an NR cell measurement result (measResultNR).
  • the measurement identifier is an identifier used for the link between the measurement target identifier (measObjectId) and the report configuration identifier (reportConfigId).
  • the serving cell measurement result is a measurement result for the serving cell, and may report the result of both synchronization signal reception power (SSRP) and synchronization signal reception quality (SSRQ) for the serving cell.
  • physical cell identity is used to identify a cell.
  • the NR cell measurement result (measResultNR) is a measurement result for the NR cell. The measurement results of neighboring cells are included only when the related event occurs.
  • the RRC connection reconfiguration message is (8A) rrc-TransactionIdentifier, (8B) measConfig, (8C) mobilityControlInfo, (8D) dedicatedInfoNASList, (8E) radioResourceConfigDedicated, (8F) securityConfigHO, (8G) otherConfig, It may include part or all of (8H) fullConfig, (8I) sCellToReleaseList, (8J) sCellToAddModList, and (8K) systemInfomationBlockDedicated.
  • rrc-TransactionIdentifier is an element used for identifying an RRC procedure (transaction), and has, for example, an integer of 0 to 3 as a value.
  • measConfig is information for setting a measurement to be performed by the terminal device 2, and may include setting of a gap period for measurement.
  • dedicatedInfoNASList is a list of NAS layer information specific to the terminal device 2 exchanged between the network and the terminal device 2 and includes information of the NAS layer for each DRB, and the RRC layer transmits this information transparently Is transferred to the upper layer (NAS layer).
  • radioResourceConfigDedicated may include information used for setting, changing, and / or releasing SRB or DRB, information for changing the setting of the MAC layer, information regarding channel setting of the physical layer, and the like.
  • securityConfigHO is a setting relating to security, and may include, for example, setting of Integrity Protection algorithm in the AS layer of SRB, setting of Ciphering algorithm of SRB and / or DRB, and the like.
  • fullConfig is information indicating whether or not a specific option is applied to this RRC connection reconfiguration message, and the terminal device 2 is used when (8H) fullConfig is included in the RRC connection reconfiguration message, Settings included in specific elements may be applied.
  • sCellToReleaseList may include information used to add, change, and / or release secondary cells.
  • systemInfomationBlockDedicated may include a part of broadcast information of a target cell.
  • mobilityControlInfo includes parameters necessary for mobility by network control (for example, handover).
  • mobilityControlInfo may include part or all of targetPhysCellId, carrierFreq, carrierBandwidth, t304, newUE-Identity, radioResourceConfigCommon, rach-ConfigDedicated.
  • mobilityControlInfo may include various other information.
  • TargetPhysCellId indicates an identifier of a target cell (for example, a physical cell identifier).
  • carrierFreq indicates information on the frequency used by the terminal device 2 in the target cell.
  • carrierBandwidth indicates downlink and / or uplink bandwidth information of the target cell.
  • t304 indicates the value of the timer related to the handover. For example, the terminal device 2 may execute a predetermined process when the handover is not normally completed within the time indicated by the timer.
  • newUE-Identity indicates a new identifier (for example, C-RNTI) of the terminal device 2 in the target cell.
  • RadioResourceConfigCommon contains information used to specify common radio resource settings such as random access parameters and static physical layer parameters.
  • the rach-ConfigDedicated includes information used to specify individual random access parameters to be assigned to the terminal device 2. For example, it may include part or all of the format of a random access preamble and information that explicitly indicates time / frequency resources, and / or information of nucleology used to transmit the preamble.
  • the RRC connection reconfiguration message may include information other than the RRC connection reconfiguration message, or may not include part of information of the RRC connection reconfiguration message.
  • the RRC connection reconfiguration message may have a different structure, information element name, or parameter name from the RRC connection reconfiguration message.
  • the base station device 3 in LTE and the base station device 3 in NR may set measurement settings independent of each other in the terminal device 2.
  • the measurement setting is set in the terminal device 2 from the base station device 3 in LTE.
  • the base station device 3 sets measurement settings including the measurement target in the terminal device 2 (step S91).
  • three measurement targets are set for the terminal device 2, and one reportConfigEUTRA and two reportConfigInterRATs are set. Measurement identifiers are set for combinations of these three report settings and associated measurement targets.
  • the terminal device 2 in which the measurement setting is set executes the measurement based on the information of the measurement setting (step S92).
  • the terminal device 2 notifies the measurement result to the base station device 3 (step S94) when the condition for report setting is satisfied (step S93).
  • inter-cell mobility may be performed between LTE cells, and NR cells may be added to LTE cells and set as terminals. That is, measurement in which the measurement target is LTE may be performed when the quality of the serving cell is degraded (when the cell edge is approached), and measurement in which the measurement target is NR is the quality of the serving cell. Regardless of the case, it may be performed for adding or changing cells.
  • the measurement configuration includes information (first information) for determining whether to consider the serving cell quality threshold when performing the measurement.
  • the first information may be information indicating whether to consider the serving cell quality threshold included in the setting of the measurement target.
  • the first information Boolean type information is included in the measurement object, and if true, the serving cell quality threshold is considered in the measurement of the measurement object, and if false, the measurement of the measurement object.
  • the serving cell quality threshold may not be considered (the measurement may be performed regardless of the setting of the serving cell quality threshold).
  • true and false of the first information may have opposite meanings.
  • the first information information of an enumerated type is included, and if the information is a first value, the information is determined in consideration of a serving cell quality threshold in the measurement of the measurement target. If it is a value of 2, the serving cell quality threshold may not be considered in the measurement of the measurement target (the measurement may be performed regardless of the setting of the serving cell quality threshold). Alternatively, the first value and the second value of the first information may have the opposite meaning.
  • whether to consider the serving cell quality threshold may be indicated depending on whether the first information is included in the configuration of the measurement target.
  • the serving cell quality threshold is considered in the measurement of the measurement target, and when the first information is not included, the serving cell quality threshold is not considered in the measurement of the measurement target (setting of the serving cell quality threshold)
  • the measurement may be performed independently of the Alternatively, whether or not they are included may have the opposite meaning.
  • the first information may be included in the report settings or other settings. If the first information is included in the report configuration, the first information is used to perform the measurement of the measurement object linked to the report configuration. Even when the first information is included in other settings, it is sufficient that the first information is finally linked to the measurement target.
  • this first information may be included only in a specific type of measurement target.
  • it may be included only in the measurement target of a specific RAT (eg, NR).
  • a specific RAT eg, NR
  • determination of measurement execution based on the first information may not be performed.
  • step S71 when the measurement gap is set or the measurement target does not need the gap, the terminal device 2 transitions to step S72 (step S71).
  • step S72 the terminal device 2 determines whether the first condition is satisfied. The terminal device 2 transitions to step S73 when the first condition is satisfied. If the first condition is not satisfied, the measurement on the measurement object is not performed.
  • step S73 the terminal device 2 supports CSI-RS based discovery signal measurement, and further, the event associated with the report setting is a C1 event or a C2 event, or the strongest CSI- in the report setting. If it is set to report RS, the process proceeds to step S74. If not, the process proceeds to step S75.
  • step S74 the terminal device 2 applies the timing setting of the discovery signal included in the measurement configuration of the discovery signal, and performs measurement of CSI-RS of the frequency included in the measurement target.
  • step S75 the terminal device 2 executes measurement of adjacent cells of the frequency and RAT instructed by the measurement target.
  • step S72 An example of determining whether the first condition is satisfied in step S72 will be described below.
  • the terminal device 2 when the s-Measure is not set, or the s-Measure is set, the terminal device 2 further sets the quality (RSRP value) after layer 3 filtering of the PCell, which is a serving cell (serving cell). ) Is lower than s-Measure, or the first information (ignoreSmeasure) indicating that s-Measure is not considered is set to true, or of the discovery signal linked to the measurement target If the measurement setting is set, the process proceeds to step S73.
  • RSRP value quality after layer 3 filtering of the PCell, which is a serving cell (serving cell).
  • the terminal device 2 when the s-Measure is not set, or the s-Measure is set, the terminal device 2 further sets the quality (RSRP value) after layer 3 filtering of the PCell, which is a serving cell (serving cell). Is lower than s-Measure, or the first information (ignoreSmeasure) indicating that the measurement object relates to NR and does not consider s-Measure is set to true, or When the measurement setting of the discovery signal linked to the measurement target is set, the process transitions to step S73.
  • the base station device 3 transmits an RRC message including information on the first condition to the terminal device 2.
  • the base station device 3 assumes that the terminal device 2 determines whether the first condition is satisfied in step S72 by receiving the RRC message. That is, by transmitting an RRC message, the base station device 3 causes the terminal device 2 to process the measurement execution based on whether the first condition is satisfied at the time of the measurement execution of the terminal device 2. Become.
  • the measurement configuration comprises a plurality of serving cell quality thresholds.
  • the serving cell quality threshold may be set for each RAT.
  • the plurality of serving cell quality thresholds correspond to the serving cell quality thresholds corresponding to the respective measurements of one or more specific RATs (eg, UTRA, LTE, NR, and / or GERAN, etc.) and other RATs. Serving cell quality threshold.
  • specific RATs eg, UTRA, LTE, NR, and / or GERAN, etc.
  • step S72 when the s-Measure corresponding to the RAT to be measured is not set, or the s-Measure corresponding to the RAT to be measured is set to the terminal device 2. Furthermore, if the quality (RSRP value) after layer 3 filtering of the PCell that is the serving cell (serving cell) is lower than s-Measure, or if the measurement configuration of the discovery signal linked to the measurement target is set If there is, the process proceeds to step S73.
  • RSRP value quality after layer 3 filtering of the PCell that is the serving cell
  • s-Measure for example, whether to set s-Measure and / or a value of s-Measure
  • setting of s-Measure can be appropriately performed according to the purpose.
  • the events included in the report configuration are classified into an event in which the serving cell quality threshold is considered and an event in which the serving cell quality threshold is not considered.
  • the terminal device 2 may execute the measurement of the measurement target linked to the event not considering the serving cell quality threshold regardless of the setting of the serving cell quality threshold. For example, in the measurement of the measurement target linked to the event not considering the serving cell quality threshold, the terminal device 2 may operate as the first information (ignoreSmeasure) in FIG. 7 becomes true.
  • the terminal device 2 executes the measurement in consideration of the serving cell quality threshold based on the information on whether the serving cell of the same RAT as the measurement target is set to the frequency instructed by the measurement target? Decide whether or not. For example, when the serving cell of the same RAT as the measurement target is set to the frequency instructed by the measurement target, the terminal device 2 performs measurement in consideration of the serving cell quality threshold (transition to S73), and When the serving cell of the same RAT as the measurement target is not set to the instructed frequency, the measurement in which the serving cell quality threshold is considered may not be performed (do not transition to S73).
  • the terminal device 2 when the terminal device 2 does not support the MCG configured with an NR cell and the associated measurement target relates to NR, the terminal device 2 transitions to S73.
  • This is also combined with the above example. For example, in combination with the first example described above, the following is obtained. If s-Measure is not set, or s-Measure is set, the terminal device 2 further sets the quality (RSRP value) after layer 3 filtering of the PCell, which is a serving cell, from the s-Measure If the value is also low, this indicates that the terminal device 2 does not support MCG configured with NR cells and the associated measurement target relates to NR or does not consider s-Measure.
  • RSRP value quality after layer 3 filtering of the PCell
  • the measurement that considers the serving cell quality threshold is performed (transition to S73) And, otherwise, serving cell quality Not perform measurements consider the value (not transition to S73) may be.
  • the conditions of the present embodiment and / or the above-described respective conditions may be combined to be the first condition.
  • the above-mentioned condition that “the terminal device 2 does not support MCG configured with NR cell” is “the terminal device 2 does not support PCell of the NR cell” or “a standalone operation of NR ( For example, the terminal device 2 may not support “an operation with NR alone that is not EN-DC”.
  • the first information described above indicates that “when terminal device 2 does not support MCG configured with NR cell” and “when terminal device 2 does not support PCell of NR cell” Or, it may be included as an information element of the RRC message only when “the terminal device 2 does not support the stand-alone operation of NR (for example, the operation with NR alone which is not EN-DC)” and the above condition is not met. May not include the first information described above as an information element of the RRC message.
  • the terminal device 2 may determine whether to perform the process of the measurement execution determination itself based on various conditions.
  • the above “transition to S73” may be referred to as “performing measurement of adjacent cells of the frequency and RAT instructed by the measurement target”.
  • the above “transition to S73” may be referred to as “performing measurement of CSI-RS of the frequency included in the measurement target”.
  • the above “transition to S 73” may be referred to as “performing measurement of a frequency instructed by the measurement target and / or a cell adjacent to the RAT and / or measurement of CSI-RS of the frequency included in the measurement target”.
  • FIG. 2 is a schematic block diagram showing the configuration of the terminal device 2 of the present embodiment.
  • the terminal device 2 is configured to include a wireless transmission / reception unit 20 and an upper layer processing unit 24.
  • the wireless transmission and reception unit 20 includes an antenna unit 21, an RF (Radio Frequency) unit 22, and a baseband unit 23.
  • the upper layer processing unit 24 includes a medium access control layer processing unit 25 and a radio resource control layer processing unit 26.
  • the wireless transmission / reception unit 20 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.
  • a control unit that controls the operation of each unit based on various conditions may be separately provided.
  • the upper layer processing unit 24 outputs, to the radio transmission / reception unit 20, uplink data (transport block) generated by user operation or the like.
  • the upper layer processing unit 24 includes a medium access control (MAC) layer, a packet data convergence protocol (PDC) layer, a radio link control (RLC) layer, and a radio resource control (MAC) layer.
  • Radio Resource Control (RRC) layer performs part or all of processing.
  • the medium access control layer processing unit 25 included in the upper layer processing unit 24 performs processing of the medium access control layer.
  • the medium access control layer processing unit 25 controls transmission of the scheduling request based on various setting information / parameters managed by the radio resource control layer processing unit 26.
  • the radio resource control layer processing unit 26 included in the upper layer processing unit 24 performs processing of the radio resource control layer.
  • the radio resource control layer processing unit 26 manages various setting information / parameters of its own device.
  • the radio resource control layer processing unit 26 sets various setting information / parameters based on the signal of the upper layer received from the base station apparatus 3. That is, the radio resource control layer processing unit 26 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3.
  • the wireless transmission / reception unit 20 performs physical layer processing such as modulation, demodulation, coding, and decoding.
  • the wireless transmission and reception unit 20 separates, demodulates and decodes the signal received from the base station apparatus 3, and outputs the decoded information to the upper layer processing unit 24.
  • the radio transmission / reception unit 20 modulates and encodes data to generate a transmission signal, and transmits the transmission signal to the base station apparatus 3.
  • the RF unit 22 converts a signal received via the antenna unit 21 into a baseband signal by quadrature demodulation (down conversion: down cover), and removes unnecessary frequency components.
  • the RF unit 22 outputs the processed analog signal to the baseband unit.
  • the baseband unit 23 converts an analog signal input from the RF unit 22 into a digital signal.
  • the baseband unit 23 generates a CP (Cyclic) signal from the converted digital signal.
  • the part corresponding to Prefix) is removed, and the signal from which CP is removed is subjected to Fast Fourier Transform (FFT) to extract a signal in the frequency domain.
  • FFT Fast Fourier Transform
  • the baseband unit 23 performs inverse fast Fourier transform (IFFT) on the data to generate an SC-FDMA symbol, adds a CP to the generated SC-FDMA symbol, and performs a baseband operation. And convert the baseband digital signal to an analog signal.
  • the baseband unit 23 outputs the converted analog signal to the RF unit 22.
  • IFFT inverse fast Fourier transform
  • the RF unit 22 removes extra frequency components from the analog signal input from the baseband unit 23 using a low-pass filter, and up-converts the analog signal to the carrier frequency. Send through. Also, the RF unit 22 amplifies the power. Also, the RF unit 22 may have a function of controlling transmission power. The RF unit 22 is also referred to as a transmission power control unit.
  • the terminal device 2 may be configured to include a plurality of parts or all of each part in order to support transmission / reception processing in the same subframe of a plurality of frequencies (frequency band, frequency bandwidth) or cells. .
  • FIG. 3 is a schematic block diagram showing the configuration of the base station device 3 of the present embodiment.
  • the base station device 3 is configured to include a wireless transmission / reception unit 30 and an upper layer processing unit 34.
  • the wireless transmission and reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33.
  • the upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36.
  • the wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.
  • a control unit that controls the operation of each unit based on various conditions may be separately provided.
  • the upper layer processing unit 34 includes a Medium Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a radio resource control (MAC) layer.
  • Radio Resource Control (RRC) layer performs some or all processing.
  • the medium access control layer processing unit 35 provided in the upper layer processing unit 34 performs processing of the medium access control layer.
  • the medium access control layer processing unit 35 performs processing related to scheduling requests based on various setting information / parameters managed by the radio resource control layer processing unit 36.
  • the radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs processing of the radio resource control layer.
  • the radio resource control layer processing unit 36 generates downlink data (transport block), system information, RRC message, MAC CE (Control Element), etc. allocated to the physical downlink shared channel, or the upper node. , And output to the wireless transmission / reception unit 30.
  • the radio resource control layer processing unit 36 also manages various setting information / parameters of each of the terminal devices 2.
  • the radio resource control layer processing unit 36 may set various setting information / parameters for each of the terminal devices 2 via the upper layer signal. That is, the radio resource control layer processing unit 36 transmits / broadcasts information indicating various setting information / parameters.
  • the function of the wireless transmission / reception unit 30 is the same as that of the wireless transmission / reception unit 20, and thus the description thereof is omitted.
  • the base station device 3 is connected to one or more transmission / reception points 4, a part or all of the functions of the wireless transmission / reception unit 30 may be included in each transmission / reception point 4.
  • the upper layer processing unit 34 transmits (transfers (transfers) user data or control messages between the base station apparatus 3 or between the upper network apparatus (MME, S-GW (Serving-GW)) and the base station apparatus 3. Or receive.
  • MME mobile phone
  • S-GW Serving-GW
  • other components of the base station apparatus 3 and transmission paths of data (control information) between the components are omitted in FIG. 3, other components required to operate as the base station apparatus 3 are omitted. It is obvious to have a plurality of functional blocks as a component.
  • a radio resource management (Radio Resource Management) layer processing unit and an application layer processing unit are present.
  • part in the figure is an element that implements the functions and procedures of the terminal device 2 and the base station device 3, which are also expressed in terms of sections, circuits, configuration devices, devices, units and the like.
  • Each of the units denoted by reference numerals 20 to 26 included in the terminal device 2 may be configured as a circuit.
  • Each of the units from 30 to 36 included in the base station apparatus 3 may be configured as a circuit.
  • a first aspect of the present invention is a terminal device, which includes a measurement target, a report setting, and a measurement identifier identifying a combination of one of the measurement target and one of the report settings. And a measurement unit for performing measurement of the measurement object indicated by the measurement identifier when the first condition is satisfied, and the first condition is satisfied in the terminal device.
  • the first threshold is not set or when the first threshold is set for the terminal device and the reference signal received power (RSRP) after filtering of a specific serving cell is smaller than the first threshold
  • RSRP reference signal received power
  • a second aspect of the present invention is a base station apparatus comprising: a measurement target; a report setting; a measurement identifier identifying a combination of one of the measurement targets and one of the report settings; Generating a measurement setting including a transmitter configured to transmit a measurement setting including the threshold and the first information indicating whether or not the first threshold is considered in the measurement of the measurement target indicated by the measurement identifier; And a control unit.
  • a third aspect of the present invention is a communication method applied to a terminal device, wherein the measurement identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings.
  • RSRP reference signal reception power
  • a fourth aspect of the present invention is a communication method applied to a base station apparatus, which identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings. Transmitting a measurement setting including a measurement identifier and a first threshold, and including first information indicating whether or not the first threshold is considered in the measurement of the measurement target indicated by the measurement identifier Generating the measurement settings.
  • a fifth aspect of the present invention is an integrated circuit mounted on a terminal device, wherein the measurement identifies a combination of a measurement target, a report setting, one of the measurement targets, and one of the report settings. Causing the terminal device to exhibit a function of receiving a measurement setting including an identifier, and a function of performing measurement of the measurement target indicated by the measurement identifier when the first condition is satisfied,
  • the condition that the condition 1 is satisfied means that the first threshold value is not set in the terminal device, or the first threshold value is set in the terminal device and the reference signal reception power after filtering of a specific serving cell When (RSRP) is smaller than said 1st threshold value, or when measurement object of said measurement identifier is included in 1st information.
  • RSRP specific serving cell
  • a sixth aspect of the present invention is an integrated circuit implemented in a base station apparatus, which identifies a combination of a measurement target, a report setting, one of the measurement targets and one of the report settings.
  • a function of generating the measurement setting is exhibited to the base station apparatus.
  • the terminal device 2 and the base station device 3 can perform communication based on efficient measurement.
  • the uplink transmission scheme is applicable to both FDD (Frequency Division Duplex) and TDD (Time Division Duplex) communication systems.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the names of the respective parameters and the respective events shown in the embodiments are referred to for convenience of explanation, and even if the names actually applied are different from the names of the embodiments of the present invention, the present invention is not limited thereto. It does not affect the spirit of the claimed invention in the embodiments of the invention.
  • connection used in each embodiment is not limited to a configuration in which one device and another device are directly connected using physical lines, but is logically connected. And wirelessly connected using wireless technology.
  • the terminal device 2 is also referred to as a user terminal, a mobile station device, a communication terminal, a mobile station, a terminal, a UE (User Equipment), and an MS (Mobile Station).
  • the base station apparatus 3 includes a radio base station apparatus, a base station, a radio base station, a fixed station, an NB (Node B), an eNB (evolved Node B), a BTS (Base Transceiver Station), a BS (Base Station), and an NR NB (NR Node B). ), NNB, TRP (Transmission and Reception Point), and gNB (next generation Node B).
  • the base station device 3 can also be realized as an aggregate (device group) configured of a plurality of devices.
  • Each of the devices forming the device group may include all or part of each function or each functional block of the base station device 3 according to the above-described embodiment. It is sufficient to have one function or each functional block of the base station apparatus 3 as an apparatus group.
  • the terminal device 2 related to the above-described embodiment can also communicate with the base station device 3 as an aggregate.
  • the base station device 3 in the above-described embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) or may be a next-generation core network (NextGen Core).
  • the base station apparatus 3 in the above-described embodiment may have some or all of the functions of the upper node to the eNodeB.
  • a program that operates in an apparatus according to an aspect of the present invention causes a computer to function by controlling a central processing unit (CPU) or the like so as to realize the functions of the above-described embodiments according to an aspect of the present invention. It may be a program.
  • the program or information handled by the program is temporarily read into volatile memory such as Random Access Memory (RAM), or stored in nonvolatile memory such as flash memory or Hard Disk Drive (HDD).
  • volatile memory such as Random Access Memory (RAM), or stored in nonvolatile memory such as flash memory or Hard Disk Drive (HDD).
  • the CPU reads, corrects and writes.
  • part of the apparatus in the above-described embodiment may be realized by a computer.
  • a program for realizing the control function is recorded on a computer readable recording medium, and the computer system reads and executes the program recorded on the recording medium. It is also good.
  • the "computer system” referred to here is a computer system built in a device, and includes hardware such as an operating system and peripheral devices.
  • the “computer readable recording medium” may be any of a semiconductor recording medium, an optical recording medium, a magnetic recording medium, and the like.
  • a computer-readable recording medium holds a program dynamically for a short time, like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line.
  • it may also include one that holds a program for a certain period of time, such as volatile memory in a computer system that becomes a server or a client in that case.
  • the program may be for realizing a part of the functions described above, and may be realized in combination with the program already recorded in the computer system. .
  • each functional block or feature of the device used in the above-described embodiment may be implemented or implemented in an electric circuit, that is, typically an integrated circuit or a plurality of integrated circuits.
  • Electrical circuits designed to perform the functions described herein may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or the like. Programmable logic devices, discrete gates or transistor logic, discrete hardware components, or combinations thereof.
  • a general purpose processor may be a microprocessor, but in the alternative, the processor may be a conventional processor, controller, microcontroller, or state machine.
  • the general purpose processor or each of the circuits described above may be composed of digital circuits or may be composed of analog circuits.
  • integrated circuits according to such technology can also be used.
  • the present invention is not limited to the above embodiment. Although an example of the device has been described in the embodiment, the present invention is not limited thereto, and a stationary or non-movable electronic device installed indoors and outdoors, for example, an AV device, a kitchen device, The present invention can be applied to terminal devices or communication devices such as cleaning and washing equipment, air conditioners, office equipment, vending machines, and other household appliances.
  • One embodiment of the present invention is used, for example, in a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), or a program. be able to.
  • a communication device for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device
  • an integrated circuit for example, a communication chip
  • program for example, a program.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cet équipement terminal selon la présente invention est pourvu d'objets à mesurer et d'une unité de mesure qui reçoit un réglage de mesure comprenant des réglages de rapport et un identifiant de mesure identifiant une combinaison de l'un des objets à mesurer et de l'un des réglages de rapport, et qui, si une première condition est satisfaite, effectue une mesure de l'objet à mesurer indiquée par l'identifiant de mesure. La première condition étant satisfaite comprend un cas dans lequel une première valeur de seuil n'est pas définie dans l'équipement terminal, un cas dans lequel la première valeur de seuil est établie dans l'équipement terminal et une puissance de réception de signal de référence (RSRP) après filtrage d'une cellule de desserte spécifique est inférieure à la première valeur de seuil, ou un cas dans lequel l'objet à mesurer de l'identifiant de mesure comprend des premières informations.
PCT/JP2018/046535 2017-12-28 2018-12-18 Équipement terminal, dispositif de station de base, procédé de communication et circuit intégré Ceased WO2019131319A1 (fr)

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JP2017253548A JP2019121828A (ja) 2017-12-28 2017-12-28 端末装置、基地局装置、通信方法、および、集積回路
JP2017-253548 2017-12-28

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JP7740920B2 (ja) * 2021-07-09 2025-09-17 株式会社デンソー 通信装置、基地局及び通信方法
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CN115396943A (zh) * 2020-04-03 2022-11-25 上海朗帛通信技术有限公司 一种被用于无线通信的方法和设备
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CN114501483B (zh) * 2020-11-11 2024-06-07 维沃移动通信有限公司 信息处理方法、装置及终端
CN116406526A (zh) * 2020-11-30 2023-07-07 华为技术有限公司 通信方法及相关设备

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