WO2020095851A1 - Terminal device, base station device, communication method, and integrated circuit - Google Patents

Terminal device, base station device, communication method, and integrated circuit Download PDF

Info

Publication number
WO2020095851A1
WO2020095851A1 PCT/JP2019/043111 JP2019043111W WO2020095851A1 WO 2020095851 A1 WO2020095851 A1 WO 2020095851A1 JP 2019043111 W JP2019043111 W JP 2019043111W WO 2020095851 A1 WO2020095851 A1 WO 2020095851A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
rrc connection
message
terminal device
base station
Prior art date
Application number
PCT/JP2019/043111
Other languages
French (fr)
Japanese (ja)
Inventor
秀和 坪井
貴子 堀
山田　昇平
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2020095851A1 publication Critical patent/WO2020095851A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.
  • the present application claims priority based on Japanese Patent Application No. 2018-209699 filed in Japan on Nov. 7, 2018, and the content thereof is incorporated herein.
  • Wireless access method and wireless network of cellular-mobile communication (hereinafter, referred to as “Long Term Evolution (LTE: registered trademark)” or “Evolved Universal Terrestrial Radio Access: EUTRA or E-UTRA”) and core network ( Below, “Evolved Packet Core: EPC”) is being considered in the 3rd Generation Partnership Project (3rd Generation Partnership Project: 3GPP).
  • LTE Long Term Evolution
  • EUTRA Evolved Universal Terrestrial Radio Access
  • EPC Evolved Packet Core
  • LTE-Advanced Pro which is an extension technology of LTE
  • NR New Radio technology
  • 5GC 5 Generation Core Network
  • 3GPP RP-170855 "Work Item on New Radio (NR) Access Technology” 3GPP TS 23.501, "System Architecture for the 5G System; Stage 2" 3GPP TS 36.300, “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio; O2 Accessory (O-UTRA); 3GPP TS 36.331 v15.3.0, “Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol Specifications” 3GPP TS 36.323, “Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification” 3GPP TS 36.322, “Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC) protocol specification” 3GPP TS 36.321, “Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification” 3GPP TS 37.340,
  • 3GPP TS 23.502 "Procedure for 5G System; Stage 2”
  • 3GPP TS 37.324 "NR; Service Data Adaptation Protocol (SDAP) specification
  • 3GPP TS 37.320 "UTRA and E-UTRA; Radio measurement collection for Minimization of Drive Tests (MDT); Overall description
  • the EUTRA terminal device that connects to the EPC stores the message (RRC connection setup completion message) sent to the base station device when the setup of the radio resource control (Radio Resource Control: RRC) connection is completed by the terminal device (Store). ) Has a function of including information indicating the presence or absence of various information (Non-Patent Document 4).
  • the accumulated information includes information about measurement results of a serving cell and an adjacent cell, information about measurement results of Bluetooth (registered trademark), information about measurement results of WLAN, and movement history information of terminal devices. ..
  • Non-Patent Document 4 the terminal device does not include information indicating the presence or absence of various stored information in the RRC connection setup completion message when connecting to the 5GC.
  • the accumulated information can be used not only for the purpose of network optimization, but also for the base station device to grasp the state of the terminal device and set the optimum communication parameters.
  • One aspect of the present invention has been made in view of the above circumstances, and a terminal device capable of efficiently performing communication with a base station device, a base station device, a method used for the terminal device, and the terminal device. It is an object of the present invention to provide an integrated circuit mounted on.
  • the first aspect of the present invention is a terminal device that communicates with a base station device, wherein the system information notified from the base station device and a message instructing establishment of an RRC connection transmitted from the base station device are provided. And a processing unit for selecting information to be included in the RRC connection setup completion message, a transmission unit for transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment. And when the terminal device connects to the EPC using the EUTRA wireless technology, if the first information is stored, information indicating that the first information exists is added to the RRC connection setup completion message. Including, when the terminal device connects to EPC or 5GC by EUTRA wireless technology, which core network to connect to Regardless Luke, include information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
  • a second aspect of the present invention is a base station device that communicates with a terminal device, the transmitting unit transmitting system information and a message (RRC connection setup message) instructing establishment of an RRC connection, and an RRC.
  • the terminal device does not connect to the EPC using the EUTRA wireless technology, including a receiving unit that receives a message (RRC connection setup completion message) notifying completion of connection establishment and a processing unit that selects information to be included in the system information.
  • the system information includes information instructing the terminal device to include the information indicating that the first information exists in the RRC connection setup completion message.
  • a third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device, comprising system information notified from the base station device and RRC transmitted from the base station device.
  • a step of receiving a message instructing the establishment of a connection a step of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message
  • RRC connection setup completion message a message notifying the base station device of the completion of the RRC connection establishment
  • information included in the RRC connection setup completion message And at least the step of selecting the first information is stored in the RRC when the terminal device connects to the EPC using the EUTRA wireless technology, the information indicating that the first information exists is stored in the RRC.
  • the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, it is included in the connection setup completion message.
  • whether to connect to any of the core network includes information indicating that the if the accumulated second information the second information
  • a fourth aspect of the present invention is a communication method applied to a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. At least, a step of receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment, and a step of selecting information to be included in the system information, wherein the terminal device uses EUTRA wireless technology.
  • the system is provided with information for instructing the terminal device to include information indicating that the first information is present if the first information is stored in the RRC connection setup completion message. Include in information.
  • a fifth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, wherein system information notified from the base station device and RRC transmitted from the base station device are provided.
  • a function of receiving a message instructing the establishment of a connection a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message.
  • RRC connection setup completion message a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment
  • information included in the RRC connection setup completion message If the terminal device is caused to exhibit the function of selecting, and the terminal device connects to the EPC by the EUTRA wireless technology, the first information exists if the first information is stored.
  • the terminal device connects to the EPC or 5GC by the EUTRA wireless technology by including the information shown in the RRC connection setup completion message.
  • whether to connect to any of the core network includes information indicating that the if the accumulated second
  • a sixth aspect of the present invention is an integrated circuit mounted in a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection.
  • the base station device the terminal device having the function to perform, a function to receive a message notifying the completion of the RRC connection establishment (RRC connection setup completion message), and a function to select information to be included in the system information.
  • the terminal device may include information indicating that the first information exists if the first information is stored in the RRC connection setup completion message. Include instructing information in the system information.
  • the terminal device can notify the base station device of necessary and useful information, and can efficiently perform communication.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a protocol stack diagram of UP and CP of a terminal device and a base station device in EUTRA in the embodiment of the present invention.
  • FIG. 3 is a protocol stack diagram of UP and CP of a terminal device and a base station device in NR in the embodiment of the present invention.
  • the block diagram which shows the structure of the terminal device in embodiment of this invention.
  • the block diagram which shows the structure of the base station apparatus in embodiment of this invention.
  • LTE (and LTE-A Pro) and NR may be defined as different RATs.
  • LTE that can be connected by NR and Multi Radio Dual connectivity (MR-DC) may be distinguished from conventional LTE.
  • MR-DC Multi Radio Dual connectivity
  • This embodiment may be applied to NR, LTE and other RATs.
  • E-UTRA E-UTRA
  • LTE LTE
  • LTE E-UTRA
  • FIG. 1 is a schematic diagram of a communication system according to each embodiment of the present invention.
  • E-UTRA100 is a radio access technology described in Non-Patent Document 3 and the like, and is composed of a cell group (Cell Group: CG) configured by one or a plurality of frequency bands.
  • the eNB (E-UTRAN Node B) 102 is an E-UTRA base station device.
  • the EPC (Evolved Packet Core) 104 is a core network (core network) described in Non-Patent Document 14 and the like, and was designed as a core network for E-UTRA.
  • the interface 112 is an interface between the eNB 102 and the EPC 104, and has a control plane (Control Plane: CP) through which a control signal passes and a user plane (User Plane: UP) through which the user data passes.
  • Control Plane: CP Control Plane
  • User Plane: UP User Plane
  • NR106 is a radio access technology described in Non-Patent Document 9 and the like, and includes a cell group (Cell Group: CG) configured by one or a plurality of frequency bands.
  • the gNB (g Node B) 108 is an NR base station device.
  • the 5GC 110 is a core network described in Non-Patent Document 2 and is designed as an NR core network, but may be used as an E-UTRA core network having a function of connecting to 5GC.
  • E-UTRA may include E-UTRA having a function of connecting to 5GC.
  • the interface 114 is the interface between the eNB 102 and the 5GC 110
  • the interface 116 is the interface between the gNB 108 and the 5GC 110
  • the interface 118 is the interface between the gNB 108 and the EPC 104
  • the interface 120 is the interface between the eNB 102 and the gNB 108
  • the interface 124 is the EPC 104 and the 5GC 110. Is an interface between.
  • the interface 114, the interface 116, the interface 118, the interface 120, and the interface 124 are interfaces that pass only CP, only UP, or both CP and UP.
  • the interface 114, the interface 116, the interface 118, the interface 120, and the interface 124 may not exist depending on the communication system provided by the communication carrier.
  • the UE 122 is a terminal device (User Equipment: UE) that supports E-UTRA, NR, or both E-UTRA and NR.
  • UE User Equipment
  • FIG. 2 is a protocol stack diagram of UP and CP of the terminal device and the base station device in the E-UTRA radio access layer in each embodiment of the present invention.
  • 2A is a protocol stack diagram of the UP used when the UE 122 communicates with the eNB 102.
  • the PHY (Physical layer) 200 is a wireless physical layer (wireless physical layer), and provides a transmission service to an upper layer (upper layer) using a physical channel (Physical Channel).
  • the PHY 200 is connected to a higher-level MAC (Medium Access Control layer) 202, which will be described later, by a transport channel (Transport Channel). Data moves between the MAC 202 and the PHY 200 via the transport channel. Data is transmitted and received between the PHY of the UE 122 and the eNB 102 via a wireless physical channel.
  • the MAC 202 is a medium access control layer (medium access control layer) that maps various logical channels (Logical Channels) to various transport channels.
  • the MAC 202 is connected to a higher-order RLC (Radio Link Control layer) 204 described later by a logical channel.
  • Logical channels are roughly classified according to the type of information to be transmitted, and are divided into a control channel for transmitting control information and a traffic channel for transmitting user information.
  • the MAC 202 has a function of controlling the PHY 200 for performing discontinuous transmission (DRX / DTX), a function of executing a random access (Random Access) procedure, a function of notifying transmission power information, a function of performing HARQ control, and the like.
  • DRX / DTX discontinuous transmission
  • Random Access random access
  • the RLC 204 divides the data received from the higher-order PDCP (Packet Data Convergence Protocol Layer) 206 described later, and adjusts the data size so that the lower layer (lower layer) can appropriately transmit the data.
  • Wireless link control layer radio link control layer
  • the RLC 200 also has a function for guaranteeing the QoS (Quality of Service) required by each data. That is, the RLC 204 has functions such as data retransmission control (Non-Patent Document 6).
  • the PDCP 206 is a packet data convergence protocol layer (packet data convergence protocol layer) for efficiently transmitting an IP packet (IP Packet) that is user data in a wireless section.
  • the PDCP 206 may have a header compression function that compresses unnecessary control information.
  • the PDCP 206 may also have a data encryption function (Non-Patent Document 5).
  • the data processed by the MAC 202, RLC 204, and PDCP 206 are called MAC PDU (Protocol Data Unit), RLC PDU, and PDCP PDU, respectively.
  • MAC PDU Protocol Data Unit
  • RLC PDU Physical Location
  • PDCP PDU Physical Downlink Control Protocol
  • the data passed from the upper layer to the MAC 202, RLC 204, PDCP 206, or the data passed to the upper layer are called MAC SDU (Service Data Unit), RLC SDU, and PDCP SDU, respectively.
  • 2B is a protocol stack diagram of the CP used when the UE 122 communicates with the eNB 102.
  • RRC Radio Resource Control layer
  • the RRC 208 is a radio link control layer (radio link control layer) that sets / reconfigures a radio bearer (RB) and controls a logical channel, a transport channel, and a physical channel.
  • the RB may be divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB), and the SRB is used as a route for transmitting an RRC message that is control information. May be.
  • the DRB may be used as a route for transmitting user data.
  • Each RB may be set between the RRC 208 of the eNB 102 and the UE 122 (Non-Patent Document 4).
  • the above-mentioned function classification of the MAC 202, RLC 204, PDCP 206, and RRC 208 is an example, and some or all of each function may not be implemented. Further, some or all of the functions of each layer may be included in another layer.
  • the IP layer and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer are upper layers of the PDCP layer (not shown).
  • the RRC layer and the NAS (non Access Stratum) layer are also upper layers of the SDAP layer (not shown).
  • the PDCP layer is a lower layer of the RRC layer, the NAS layer, the IP layer, and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer.
  • FIG. 3 is a protocol stack diagram of UP and CP of the terminal device and the base station device in the NR radio access layer in each embodiment of the present invention.
  • FIG. 3 (A) is a protocol stack diagram of the UP used when the UE 122 communicates with the gNB 108.
  • the PHY (Physical layer) 300 is an NR wireless physical layer (wireless physical layer), and may provide a transmission service to an upper layer by using a physical channel (Physical Channel).
  • the PHY 300 may be connected to a higher-level MAC (Medium Access Control layer) 302, which will be described later, by a transport channel (Transport Channel). Data may move between the MAC 302 and the PHY 300 via the transport channel. Data may be transmitted and received between the PHY of the UE 122 and the gNB 108 via a wireless physical channel.
  • the MAC 302 is a medium access control layer (medium access control layer) that maps various logical channels (Logical Channels) to various transport channels.
  • the MAC 302 may be connected to a higher-level RLC (Radio Link Control layer) 304 described later by a logical channel.
  • the logical channel is roughly classified according to the type of information to be transmitted, and may be divided into a control channel for transmitting control information and a traffic channel for transmitting user information.
  • the MAC 302 has a function of controlling the PHY 300 for performing intermittent transmission (DRX / DTX), a function of executing a random access (Random Access) procedure, a function of notifying transmission power information, a function of performing HARQ control, and the like. You may have (nonpatent literature 13).
  • the RLC 304 divides the data received from a higher-order PDCP (Packet Data Convergence Protocol Layer) 206, which will be described later, (Segmentation), and adjusts the data size so that the lower layer can appropriately transmit the data. It is a layer (radio link control layer).
  • the RLC 304 may also have a function of guaranteeing the QoS (Quality of Service) required by each data. That is, the RLC 304 may have functions such as data retransmission control (Non-Patent Document 12).
  • PDCP 306 is a packet data convergence protocol layer (packet data convergence protocol layer) that efficiently transmits an IP packet (IP Packet) that is user data in a wireless section.
  • the PDCP 306 may have a header compression function that compresses unnecessary control information.
  • the PDCP 306 may also have a data encryption function (Non-Patent Document 11).
  • the SDAP (Service Data Adaptation Protocol) 310 associates downlink QoS flows sent from the core network to the terminal device via the base station device with the DRB (mapping), and the terminal device via the base station device.
  • Service data adaptation protocol layer service data adaptation protocol layer having a function of performing mapping between an uplink QoS flow sent to the core network and DRB and storing mapping rule information (Non-patent document 16).
  • the terminal device receives the SDAP SDU from the upper layer together with the QoS flow information, the SDAP SDU is assigned to the corresponding DRB based on the stored QoS flow and DRB mapping rule. If the QoS flow and DRB mapping rules are not stored, the SDAP SDU may be assigned to the default radio bearer (default DRB).
  • the QoS flow is composed of one or more service data flows (Service Data Flow: SDF) processed by the same QoS policy (Non-Patent Document 2).
  • the SDAP may have a reflective QoS (Reflective QoS) function of mapping the uplink QoS flow and the DRB based on the information of the downlink QoS flow.
  • an end marker (End Marker) PDU is created and sent to the DRB before the change so that the SDAP SDU is delivered in order (in- The sequence delivery may be guaranteed (Non-patent document 2, Non-patent document 16).
  • the end marker PDU is the SDAP control PDU described in Non-Patent Document 16, in which the SDAP entity of the UE corresponds to the QoS flow identifier included in the QoS flow identifier field of the end marker PDU, and the end marker PDU. Is used to notify that the mapping with the transmitted radio bearer is completed.
  • the IP layer and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer are upper layers of the SDP layer (not shown).
  • the RRC layer and the NAS (non Access Stratum) layer are also upper layers of the SDAP layer (not shown).
  • the SDAP layer is a lower layer of the RRC layer, the NAS layer, the IP layer, and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer.
  • the data processed by the MAC 302, RLC 304, PDCP 306, and SDAP 310 may be called MAC PDU (Protocol Data Unit), RLC PDU, PDCP PDU, and SDP PDU, respectively.
  • MAC PDU Protocol Data Unit
  • RLC PDU Packet Data Unit
  • PDCP PDU Packet Data Unit
  • SDP PDU Session Data Unit
  • the data passed from the upper layer to the MAC 202, the RLC 204, and the PDCP 206, or the data passed to the upper layer may be referred to as a MAC SDU (Service Data Unit), an RLC SDU, a PDCP SDU, and an SDAP SDU, respectively.
  • MAC SDU Service Data Unit
  • FIG. 3B is a protocol stack diagram of the CP used when the UE 122 communicates with the gNB 108.
  • the RRC 308 is a radio link control layer (radio link control layer) that sets and resets a radio bearer (RB) and controls a logical channel, a transport channel, and a physical channel.
  • the RB may be divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB), and the SRB is used as a route for transmitting an RRC message that is control information. May be.
  • the DRB may be used as a route for transmitting user data.
  • Each RB may be set between the gNB 108 and the RRC 308 of the UE 122. Also, a part of the RB that is composed of the RLC 304 and the MAC 302 may be called an RLC bearer (Non-Patent Document 10).
  • the SRB provides SRB (SRB0) for RRC message using CCCH logical channel, SRB (SRB1) for RRC message using DCCH logical channel and NAS message sent before establishment of SRB2, DCCH logical channel.
  • SRB0 SRB
  • SRB1 SRB
  • SRB2 SRB
  • NAS message to be used and the SRB (SRB2) for the RRC message including the recorded measurement information (Logged measurement information) and the like may be defined. Also, other SRBs may be defined.
  • the above-mentioned functional classification of the MAC 302, RLC 304, PDCP 306, SDAP 310, and RRC 308 is an example, and some or all of the functions may not be implemented. Further, some or all of the functions of each layer (each layer) may be included in another layer (layer).
  • the MAC 202, RLC 204, PDCP 206, and RRC 208 are referred to as E-UTRA MAC or LTE MAC and E-UTRA, respectively, in order to distinguish the E-UTRA protocol from the NR protocol.
  • RLC for LTE or RLC for LTE PDCP for E-UTRA or PDCP for LTE
  • RRC for E-UTRA or RRC for LTE.
  • the MAC 302, RLC 304, PDCP 306, and RRC 308 may be referred to as NR MAC, NR RLC, NR RLC, and NR RRC, respectively.
  • the eNB 102, gNB 108, EPC 104, and 5GC 110 may be connected via the interface 112, the interface 116, the interface 118, the interface 120, and the interface 114. Therefore, the RRC 208 of FIG. 2 may be replaced with the RRC 308 of FIG. 3 to support various communication systems.
  • the PDCP 206 in FIG. 2 may be replaced with the PDCP 306 in FIG.
  • the RRC 308 of FIG. 3 may include the function of the RRC 208 of FIG.
  • the PDCP 306 of FIG. 3 may be the PDCP 206 of FIG.
  • the base station device may serve the terminal device with the communicable range (communication area) controlled by the base station device as one or more cells. Further, the base station device may serve the terminal device by setting the communicable range (communication area) controlled by one or a plurality of transmission / reception points as one or a plurality of cells. Further, in NR, one cell may be divided into a plurality of partial areas (also referred to as beamed area or beamed cell) and the terminal device may be served in each partial area. The terminal device operates by regarding the inside of the cell as a communication area. The terminal device may move to another appropriate cell by a cell reselection procedure during non-wireless connection (idle state, also referred to as RRC_IDLE state).
  • Idle state also referred to as RRC_IDLE state
  • the terminal device may move to another cell by a hand-over procedure when wirelessly connected (also referred to as a connected state or an RRC_CONNECTED state).
  • the appropriate cell is generally a cell in which access to the terminal device is determined not to be prohibited based on the information indicated by the base station device, and the downlink reception quality meets a predetermined condition. Indicates a cell to fill.
  • the terminal device may move to another appropriate cell in a cell reselection procedure in the inactive state (also referred to as the inactive state). In the inactive state, the terminal device may move to another cell by a handover procedure.
  • the cell that is set to be used for communication with the terminal device is defined as a serving cell (serving cell).
  • serving cell a cell that is not used for other communication
  • peripheral cell Neighboring cell
  • some or all of the system information required in the serving cell may be reported or notified to the terminal device in another cell.
  • MDT is, for example, a mechanism by which a network can cause a terminal device to perform measurement and report it in order to optimize the network.
  • Non-Patent Document 17 defines functions and procedures for supporting the collection of terminal device-specific measurements for MDT using a control plane for UTRAN and EUTRAN. The same rules as above may be applied to the NR network.
  • MDT has a mode called Logged MDT and a mode called Immediate MDT.
  • the network transfers the setting parameters for the Logged MDT to the terminal device by using the LoggedMeasurementConfiguration message which is one of the RRC messages.
  • This setting may be replaced by overwriting and may be disposed (cleared) by stopping or expiring based on the condition of the timer.
  • Non-Patent Document 17 the following parameters are defined as parameters that the terminal device reports to the network in MDT.
  • the recorded measurement (Logged Measurement) report shows the measurement result of the serving cell, the same frequency or different frequency measured by RRC_IDLE, or different radio access technology (Inter RAT). ), Available (Available) measurement results, time recording (Time Stamp), location information, etc. may be included.
  • the terminal device may store these pieces of information in the variable VarLogMeasReport.
  • the recorded measurement report shows the MBSFN measurement result of the target MBSFN area and, if set, the available downlink pilot strength.
  • the measurement result may be included.
  • the terminal device may store these pieces of information in the variable VarLogMeasReport.
  • the recorded measurement report may include the measurement result of WLAN and / or BlueTooth.
  • the WLAN measurement result may include BSSID, SSID, RSSI, RTT, and the like.
  • the measurement result of BlueTooth may include a MAC address, RSSI, and the like.
  • the terminal device may store these pieces of information in the variable VarLogMeasReport.
  • the wireless link failure report may include information regarding the connection failure that the terminal device last experienced.
  • the connection failure may include a radio link failure (RLF) and a handover failure (HOF).
  • RLF radio link failure
  • HAF handover failure
  • the terminal device may store this information in the variable VarRLF-Report.
  • the connection establishment failure report stores information on the public mobile phone network (Public Land Mobile Network: PLMN) selected when the RRC connection establishment failed. Good.
  • PLMN Public Land Mobile Network
  • the terminal device may store this information in the variable VarConnEstFailReport.
  • An IDLE measurement report may be prepared for recording the RRC_IDLE measurement.
  • the terminal device may store the information of the IDLE measurement report in the variable VarMeasIdleReport.
  • the network can statistically use the above reports collected from multiple terminal devices to detect coverage holes, grasp cell boundaries, and / or grasp radio interference conditions.
  • FIG. 4 and FIG. 7 are diagrams each showing an example of the flow of the EURC and NR RRC connection establishment procedure (procedure) in the embodiment of the present invention.
  • FIG. 4 is a diagram showing an example of a flow of EUTRA RRC connection establishment procedure in the embodiment of the present invention.
  • the purpose of this procedure is to establish RRC connection, resume suspended RRC connection, move UE 122 from RRC inactive state (RRC_INACTIVE) to RRC connected state (RRC_CONNECTED), or send early data (Early Data). (Transmission).
  • the establishment of RRC connection may be accompanied by the establishment of SRB1.
  • This procedure may be used to transfer the initial NAS individual information (Initial NAS dedicated information) from the UE 122 to the E-UTRAN.
  • the UE 122 may start transmitting the RRC connection request (RRCConnectionRequest) message.
  • the UE 122 may start transmitting an RRC Early Data Request message.
  • the UE 122 may start transmitting an RRC connection resume request message (RRCConnectionResumeRequest) message (step S401).
  • SAE Temporary Mobile Subscriber Identity: S-TMSI SAE Temporary Mobile Subscriber Identity: S-TMSI
  • the UE 122 uses the value received from the upper layer as the UE identifier (ue-Identity). ). If 5G-S-TMSI is provided from the upper layer, the UE identifier is set to a part of the value received from the upper layer. If neither information is provided, set a random value for the UE identifier.
  • (A) if the UE 122 supports mo-Voice Call, which is one of the reasons for establishment (Essbashment Cause), and the UE 122 makes a call to the multimedia wireless telephone (Multimedia: MMTEL) voice (Mobile).
  • MMTEL multimedia wireless telephone
  • the reason why the RRC connection is established for Originating MMTEL Voice, and the system information block type 2 (SystemInformationBlockType2) that is part of the system information notified from the base station device includes voiceServiceCauseIndication and is received from the upper layer. Is not high priority access (highPriorityAccess), Sets the mo-VoiceCall the value of which is one establishmentCause the fields in the RC connection request message.
  • the voiceServiceCauseIndication is information indicating whether the UE 122 is required to use the mo-VoiceCall as the establishment reason when calling the MMTEL voice.
  • (B) if the UE 122 supports mo-Voice Call for calling MMTEL video (Mobile Originating MMTEL Video), which is one of the reasons for establishment (Esblishment Cause), and UE 122 sends MMTEL video.
  • MMTEL video Mobile Originating MMTEL Video
  • the system information block type 2 (SystemInformationBlockType2) notified from the base station device includes videoServiceCauseIndication, and the establishment reason received from the upper layer is high priority access (highPriorityAccess).
  • HighPriorityAccess high priority access
  • One of the fields included in the RRC connection request message To set the mo-VoiceCall to the value of ntCause.
  • the videoServiceCauseIndication is information indicating whether the UE 122 is required to use the mo-VoiceCall as the establishment reason when calling the MMTEL video.
  • the UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC connection request message, according to the information received from the upper layer.
  • the UE 122 When the UE 122 connects to 5GC, the UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC connection request message, according to the information received from the upper layer.
  • the UE 122 submits (Submit) the RRC connection request message to the lower layer for transmission (step S401).
  • UE 122 performs the following processing when resuming the RRC connection from the suspended RRC connection.
  • the UE 122 sets the resumeIdentity, which is the identifier for the stored resume, in the field of the RRC connection resume request message. Set to one resumeID. It should be noted that setting to the field may be rephrased to setting to the value of the field.
  • the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC connection resume request message, according to the information received from the upper layer.
  • the RRC settings are restored (restored), and PDCP entities for all signaling radio bearers (SRB) and all data radio bearers (DRB) are re-established.
  • the UE 122 submits an RRC connection resume request message to the lower layer for transmission (Submit) (step S401).
  • UE 122 performs the following processing when resuming the RRC connection from RRC_INACTIVE.
  • the UE 122 stores the fullI-RNTI provided and stored (held) in the suspend mode as the fullI-RNTI which is one of the fields of the RRC connection resume request message. Set to.
  • the shortI-RNTI provided and stored (held) by suspend is set in the shortI-RNTI which is one of the fields of the RRC connection resume request message.
  • the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC connection resume request message, according to the information received from the upper layer or the AS (Access Stratum) layer.
  • the UE 122 submits an RRC connection resume request message to the lower layer for transmission (Submit) (step S401).
  • the wireless resource is set based on the information of the individual wireless resource setting (radioResourceConfigDedicated) included in the RRC connection setup message.
  • the content of the message includes the mobilityHistoryAvail value as the mobilityHistoryAvail. , True is set (step S803).
  • VarRLF-Report If the UE 122 has the information of the radio link failure or the handover failure in the variable VarRLF-Report (Available), and the list of PLMN identifiers (plmn-IdentityList) stored in the VarRLF-Report includes RPLMN, Include rlf-InfoAvailable in the content of the message, and set the value of rlf-InfoAvailable to true.
  • VarLogMeasReport If the UE 122 has Bluetooth recorded measurements (Available), and the list of PLMN identifiers accumulated in VarLogMeasReport includes RPLMN, vBealogAlogAbeAlogA, and contentLogBealogAlogABealogA, where the content of the PLMN contained in VarLogMeasReport includes logMalalogAlogAbaleAbe, and logMealBaleABealogA, which contains the content of the message. Is set to true.
  • the message content includes logMeasableAvailableLAN, WLANMavailable WLAN. Is set to true.
  • connection establishment failure information (available) in the variable VarConnEstFailReport
  • connection establishmentfailureinfo is included in the VarConnEstFailReport
  • the content of the RPLMN is stored in the VarConnEstFailReportEfalEnaFalInfalFaInEfalIn message
  • the content of the RPLMN is stored in the VarConnFailReportEfalEinFoalEfalEin message.
  • true is set.
  • the RRC connection setup completion message is submitted to the lower layer for transmission (step S405).
  • step S905 and step S907 of FIG. 9 not only when the UE 122 connects to the EPC, but also information instructing the system information block 2 or another system information block to execute the process.
  • the processing from (A) to (G) may be performed when (for example, an enableMDT field having TRUE as a value) is included or when a specific field (for example, an enableMDT field) is present. For example, if a particular release (Release A) UE 122 does not recognize this field and another release (Release B) UE 122 recognizes this field, then the Release A UE 122 will only be able to connect when the UE 122 connects to the EPC.
  • the processing from (A) to (G) is performed, and the UE 122 of Release B performs (A) ((A)) when the enableMDT field is included even when the UE 122 does not connect to the EPC (for example, when connecting to 5GC). It becomes possible to perform the processing of G).
  • This information is used when setting the content to be included in the RRC Connection Resume Complete message when the RRC connection is resumed. Like the RRC connection completion message, the content is set based on (1) to (3). May be used when
  • EUTRA cell may be replaced with “EUTRA cell and NR cell”. Also, a similar (similar) procedure may be used not only in EUTRA but also in NR. When applied to NR, EUTRA may be replaced with NR as appropriate.
  • the mobilityState may use medium and high as values to notify the medium-mobility state and the high-mobility state, respectively. Normal may be used as the value in the Normal-mobility state and / or otherwise.
  • a procedure for the UE 122 to store movement history information will be described. This procedure covers RRC_CONNECTED and RRC_IDLE and defines how movement history information is stored by the UE 122. This procedure may also cover RRC_INACTIVE.
  • the UE 122 If the UE 122 supports movement history information storage, the UE 122 performs the following procedure.
  • Step 1 When the PCell, which is one of the serving cells in RRC_CONNECTED, or the serving cell in RRC_IDLE is changed to another EUTRA cell or another RAT cell or out of service (Out of service), the UE 122 makes an entry described later in a variable VarMobilityHistoryReport ( Include a list of VisitedCellInfo (VisitedCellInfoList). At this time, the UE 122 may delete the oldest entry based on the maximum storable number of entries of the variable VarMobilityHistoryReport and then include the entry.
  • VarMobilityHistoryReport Include a list of VisitedCellInfo (VisitedCellInfoList).
  • the UE 122 When the cell global identifier of the previous PCell or serving cell exists (is available), the UE 122 includes the cell global identifier of that cell in the visitedCellId, which is one of the fields of the entry. When the cell global identifier of the previous PCell or serving cell does not exist (not available), the UE 122 includes the physical cell identifier of the cell and the carrier frequency information in the visitedCellId, which is one of the fields of the entry. In any case, the UE 122 includes information on the time spent in the PCell or the serving cell in the timeSent, which is one of the fields of the entry. When the time information exceeds the maximum time that can be indicated by timeSpent, the maximum time that can be indicated by timeSpent is set.
  • the cell global identifier is an identifier that can uniquely identify the cell globally in the network, and is represented by a combination of the PLMN identifier and the physical cell identifier in EUTRA. Also in NR, the cell global identifier is an identifier that can uniquely identify the cell globally in the network, and may be represented by a combination of the PLMN identifier and the physical cell identifier as in EUTRA.
  • the PLMN identifier is an identifier for identifying PLMN (Public Land Mobile Network), and may be notified to the UE 122 by notification information (system information).
  • VisitedCellInfoList may include, for example, up to 16 most recently visited cells or information of time spent outside EUTRA. Information about the most recently visited cell or time spent outside EUTRA (ie newly added information) may be accumulated at the beginning of the list. When 16 pieces of information are already stored in the list, the 16th information (oldest information) may be deleted and then the information may be added.
  • the list may also include cells visited in RRC_IDLE and RRC_CONNECTED states. Also, the list may include cells visited in the RRC_INACTIVE state.
  • Step 2 When the UE 122 enters EUTRA (in RRC_CONNECTED or RRC_IDLE) from a cell of another RAT or out of service area, the UE 122 includes an entry to be described later in the variable VarMobilityHistoryReport. At this time, the UE 122 may include the entry after deleting the oldest entry based on the size of the variable VarMobilityHistoryReport. The UE 122 includes information on the time spent outside EUTRA (that is, outside the cell or coverage area of another RAT) in timeSpent, which is one of the fields of the entry. At this time, the visitedCellId need not be included in the entry. The above entry is included in the variable VarMobilityHistoryReport.
  • This procedure covers LTE RRC_CONNECTED and RRC_IDLE, and NR RRC_CONNECTED, RRC_INACTIVE and RRC_IDLE and defines how movement history information is stored by the UE 122.
  • Step 1 When the PCell, which is one of the serving cells in RRC_CONNECTED of EUTRA or NR, or the serving cell in RRC_IDLE or RRC_INACTIVE is changed to another cell or out of range (Out of service), the UE122 is described in the variable VarMobilityHistoryellVoitryRepostVit (VarMobilityHistoricalResistorCV). ) List (VisitedCellInfoList). At this time, the UE 122 may delete the oldest entry based on the maximum storable number of entries of the variable VarMobilityHistoryReport and then include the entry.
  • the UE 122 may include the cell global identifier (cellGlobalId) of the cell in the visitedCellId, which is one of the fields of the entry.
  • cellGlobalId cell global identifier
  • the UE 122 may include the cell global identifier (cellGlobalId) of the cell in the visitedCellId, which is one of the fields of the entry.
  • the previous PCell or serving cell is an NR cell
  • information on the NR cell may be included.
  • the NR cell information may be the cell global identifier of the cell, and / or index information that identifies a block (SS / PBCH block) containing the synchronization signal and the physical broadcast channel.
  • the SS / PBCH block index information may be SS / PBCH block index information that satisfies a predetermined condition.
  • the UE 122 When the cell global identifier of the previous PCell or serving cell does not exist (not available), the UE 122, if the previous PCell or serving cell is a cell of EUTRA, the physical cell identifier of that cell in the visitedCellId, which is one of the fields of the entry. If the previous PCell or serving cell is an NR cell including the information of (physCellId) and carrier frequency (carrierFreq), the information of NR cell may be included in the visitedCellId which is one of the fields of the entry.
  • the information of the NR cell may be, for example, the physical cell identifier (physCellId) of the cell and the frequency information (ssbFrequency) of the SS / PBCH block.
  • the NR cell information may be, for example, the physical cell identifier of the cell, the SS / PBCH block frequency information, and the SS / PBCH block index information.
  • the UE 122 may include information on the time spent in the PCell or the serving cell in timeSent, which is one of the fields of the entry. The above entry is included in the variable VarMobilityHistoryReport.
  • the VisitedCellInfoList may include, for example, information on up to 16 most recently visited EUTRA and NR cells, or time spent outside EUTRA and NR. Information on the most recently visited cell or time spent outside EUTRA and NR (ie newly added information) may be accumulated at the beginning of the list. When 16 pieces of information are already stored in the list, the 16th information (oldest information) may be deleted and then the information may be added. Also, the list may include cells visited in RRC_IDLE, RRC_INACTIVE, and RRC_CONNECTED states.
  • Procedure 2 When the UE 122 enters EUTRA or NR (in RRC_CONNECTED or RRC_INACTIVE or RRC_IDLE) from a cell or out-of-range of RAT other than EUTRA and NR, an entry described later is included in the variable VarMobilityHistoryReport. At this time, the UE 122 may include the entry after deleting the oldest entry based on the size of the variable VarMobilityHistoryReport. The UE 122 includes information on time spent outside EUTRA and NR (that is, a cell of RAT other than EUTRA and NR or out of range) in timeSent, which is one of the fields of the entry. At this time, the visitedCellId need not be included in the entry. The above entry is included in the variable VarMobilityHistoryReport.
  • the terminal information procedure is used by the EUTRAN (network) to request the UE 122 to report information.
  • the movement history information may be notified from the UE 122 to the base station apparatus (eNB 102 or gNB 108) by this procedure.
  • EUTRAN initiates this procedure by sending a UEInformationRequest message to UE122.
  • Step 1 The UE 122, which has received the UEInformationRequest message after the successful activation of security, includes the mobilityInformationRepositoryRepository message in which the mobilityInformationRepositoryRepository message contains a mobilityInformationRepositoryRepositoryMotorityResortiorRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRestorationRestorationMessage message. Include. Further, the UE 122 includes the cell global identifier of the current cell (PCell) in the visitedCellId, which is one of the fields of the entry. At this time, the UE 122 may delete the oldest entry based on the size of the mobilityHistoryReport and then include the entry.
  • PCell current cell
  • the UE 122 includes information on the time spent in the current cell in timeSpent, which is one of the fields of the entry.
  • the above entry is included in the mobilityHistoryReport.
  • the UEInformationResponse message including the mobilityHistoryReport is submitted to the lower layer for transmission via the SRB1 or SRB2.
  • FIG. 7 is a diagram showing an example of a flow of an NR RRC connection establishment procedure (procedure) in the embodiment of the present invention.
  • the purpose of this procedure may be to establish an RRC connection.
  • the establishment of RRC connection may be accompanied by the establishment of SRB1.
  • This procedure may be used to transfer the initial NAS individual information / message (Initial NAS dedicated information / message) from the UE 122 to the E-UTRAN.
  • the UE 122 may start transmitting an RRC setup request (RRCSetupRequest) message.
  • RRCSetupRequest RRC setup request
  • the UE 122 sets ng-5GS-TMSI-Part1 in the UE identifier (ue-Identity) when 5g-S-TMSI is provided from the layer above the RRC layer. Otherwise, set a random value for the UE identifier.
  • the UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC setup request message, according to the information received from the upper layer.
  • the UE 122 submits (Submit) the RRC setup request message to the lower layer for transmission (step S701).
  • the UE 122 performs the following processing when the upper layer or the AS layer is requested to resume the RRC connection.
  • the UE 122 uses the RRCResumeRequest1 as a message and sets the fullI-RNTI value of the stored identifier in one of the fields, resumeIdentity.
  • RRCResumeRequest is used as a message, and the value of the stored shortI-RNTI is set in one of the fields, shortResumeIdentity.
  • the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC resume request message, according to the information received from the upper layer or the AS layer.
  • the RRC settings are restored (restored), the PDCP state (State) is restored, and the PDCP entity for SRB1 is re-established.
  • the UE 122 resumes SRB1.
  • the UE 122 submits (Submit) an RRC resume request message (RRCResumeRequest or RRCResumeRequest1) to the lower layer for transmission (step S701).
  • RRC resume request message RRCResumeRequest or RRCResumeRequest1
  • the radio bearer is set up according to the information contained in the RRC setup message.
  • RRC setup message If the RRC setup message is received as a reply of RRCResumeRequest or RRCSetupRequest, it transits to the RRC connection state (RRC_CONNECTED).
  • any one of (1) to (4) or any combination may not be set.
  • the release A UE 122 may not set (2) to (4) and the release B UE 122 may not set (4).
  • the release A UE 122 may not set (4) but the release B UE 122 may set (1) to (4).
  • the content of the message includes the mobilityHistoryAvail value of the mobilityHistoryAvail. , True (true).
  • VarRLF-Report If the UE 122 has the information of the radio link failure or the handover failure in the variable VarRLF-Report (Available), and the list of PLMN identifiers (plmn-IdentityList) stored in the VarRLF-Report includes RPLMN. , Rlf-InfoAvailable is included in the content of the message, and the value of rlf-InfoAvailable is set to true.
  • VarLogMeasReport contains RPLMN, the content of the message. Includes logMeasAvailableMBSFN, and true is set as the value of logMeasAvailableMBSFN.
  • VarLogMeasReport If the UE 122 has Bluetooth recorded measurements (Available), and the list of PLMN identifiers accumulated in VarLogMeasReport includes RPLMN, logTale and vMales are included in the content of the message. True is set as the value of logMeasAvailableBT.
  • connection failure information connection establishment failure information
  • RPLMN connection failure information
  • VarConnEstFailReportFailAnalog message the content of the RPLMN is stored in the VarConnEstFailReportEffectEvenaFailInfoEvenaFailInfoEvenaFailEfnAnalog
  • the content of the RPLMN is stored in the VarConnEstFailReportEfalEnaFalInfo and the content of the VarConnEstFailReapartEnaf. Is set to true.
  • the SIB1 includes idleModeMeasurements
  • the variable VarMeasIdleReport of the UE 122 includes the measurement information (IDLE modeableAvementinformation) message in the RRC_IDLE state and / or RRC_INACTIVE state information (IDLE)
  • a value true is set.
  • the RRC setup completion message is submitted to the lower layer for transmission (step S705).
  • each procedure may include processing other than the described processing.
  • the same information may be notified to the network when connecting to EUTRA and when connecting to NR, or different (or independent) information may be notified.
  • independent information may be stored using independent variables for EUTRA and NR, or information stored in a common variable may be extracted and / or shaped under different conditions.
  • the above-mentioned respective information accumulated in the UE 122 may be notified to the network by an RRC message of EUTRA when connected to EUTRA, or a part or all of the information is generated by an RRC message of NR, and EUTRA RRC message may be encapsulated and notified to the network. Also, the above-mentioned respective information accumulated in the UE 122 may be notified to the network by an NR RRC message when connected to the NR, or a part or all of the information may be generated by an EUTRA RRC message and the NR RRC message may be encapsulated and notified to the network.
  • the above procedure may be performed in the RRC layer. That is, the upper layer in the procedure may be the upper layer of the RRC layer (for example, NAS layer), and the lower layer may be the lower layer of the RRC layer (for example, PDCP layer, RLC layer, MAC layer, or PHY layer). You may.
  • the upper layer in the procedure may be the upper layer of the RRC layer (for example, NAS layer)
  • the lower layer may be the lower layer of the RRC layer (for example, PDCP layer, RLC layer, MAC layer, or PHY layer). You may.
  • FIG. 5 is a block diagram showing the configuration of the terminal device (UE 122) in the embodiment of the present invention. Note that in order to avoid complexity of description, FIG. 5 illustrates only main components which are closely related to one embodiment of the present invention.
  • the UE 122 illustrated in FIG. 5 receives the RRC connection setup message and the like from the eNB 102 and the RRC setup message and the like from the gNB 108, and a processing unit 502 that performs processing according to various information and various conditions included in the received message.
  • the transmission unit 504 transmits an RRC connection request message, an RRC connection setup completion message and the like to the eNB 102 and an RRC setup request message and an RRC setup completion message and the like to the gNB 108.
  • a control unit that controls the operation of each unit based on various conditions may be separately provided.
  • FIG. 6 is a block diagram showing the configuration of the base station device (gNB 108) according to the embodiment of the present invention. Note that in order to avoid complicated description, FIG. 6 illustrates only main components which are closely related to one embodiment of the present invention.
  • the gNB 108 illustrated in FIG. 6 creates a transmission unit 600 that transmits an RRC message or the like to the UE 122 and an RRC message that includes various information elements (IE: Information Element), and transmits the UE to the processing unit 502 of the UE 122. And a receiving unit 604 that receives an RRC message and the like from the UE 122.
  • the configuration illustrated in FIG. 6 may be applied to the eNB 102.
  • a control unit that controls the operation of each unit based on various conditions may be separately provided.
  • the eNB 102 and / or the gNB 108 can perform the appropriate parameter setting to the UE 122 by the UE 122 notifying the information on the mobility.
  • the fields of the message and / or information element used in the above description may be optional. That is, the fields of the message and / or information element used in the above description may be included in the RRC message as necessary.
  • the radio bearer in each embodiment of the present invention may be DRB or SRB.
  • a first aspect of the present invention is a terminal device that communicates with a base station device, and instructs system information reported from the base station device and establishment of an RRC connection transmitted from the base station device.
  • a receiving unit for receiving the message a transmitting unit for transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment, and a process for selecting information to be included in the RRC connection setup completion message
  • RRC connection setup completion message indicating that the first information is present if the first information is stored when the terminal device connects to the EPC by the EUTRA wireless technology.
  • the terminal device connects to EPC or 5GC by the EUTRA wireless technology, which core network is connected to Whether includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
  • the specific information is included in the system information notified by the base station device.
  • the RRC connection setup completion message includes information indicating that the first information exists if the first information is accumulated.
  • a second aspect of the present invention is a base station device that communicates with a terminal device, and a transmission unit that transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection, and an RRC.
  • the terminal device does not connect to the EPC using the EUTRA wireless technology, including a receiving unit that receives a message (RRC connection setup completion message) notifying completion of connection establishment and a processing unit that selects information to be included in the system information.
  • the system information includes information instructing the terminal device to include the information indicating that the first information exists in the RRC connection setup completion message.
  • a third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device, wherein system information reported from the base station device and RRC transmitted from the base station device are provided.
  • a step of receiving a message instructing the establishment of a connection a step of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message
  • RRC connection setup completion message a message notifying the base station device of the completion of the RRC connection establishment
  • information included in the RRC connection setup completion message And at least the step of selecting the first information is stored in the RRC when the terminal device connects to the EPC using the EUTRA wireless technology, the information indicating that the first information exists is stored in the RRC.
  • the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, it is included in the connection setup completion message.
  • whether to connect to any of the core network includes information indicating that the if the accumulated second information the second
  • a fourth aspect of the present invention is a communication method applied to a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. At least, a step of receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment, and a step of selecting information to be included in the system information, wherein the terminal device uses EUTRA wireless technology.
  • the system is provided with information for instructing the terminal device to include information indicating that the first information is present if the first information is stored in the RRC connection setup completion message. Include in information.
  • a fifth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, wherein system information notified from the base station device and RRC transmitted from the base station device are provided.
  • a function of receiving a message instructing the establishment of a connection a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message.
  • RRC connection setup completion message a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment
  • information included in the RRC connection setup completion message If the terminal device is caused to exhibit the function of selecting, and the terminal device connects to the EPC by the EUTRA wireless technology, the first information exists if the first information is stored.
  • the terminal device connects to the EPC or 5GC by the EUTRA wireless technology by including the information shown in the RRC connection setup completion message.
  • whether to connect to any of the core network includes information indicating that the if the accumulated second
  • a sixth aspect of the present invention is an integrated circuit mounted in a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection.
  • the base station device the terminal device having the function to perform, a function to receive a message notifying the completion of the RRC connection establishment (RRC connection setup completion message), and a function to select information to be included in the system information.
  • the terminal device may include information indicating that the first information exists if the first information is stored in the RRC connection setup completion message. Include instructing information in the system information.
  • the UE 122 and the eNB 102 and / or gNB 108 can efficiently communicate with each other.
  • the uplink transmission method can be applied to both the FDD (frequency division duplex) scheme and the TDD (time division duplex) scheme.
  • the names of each parameter and each event shown in the embodiment are referred to for convenience of explanation, and even if the name actually applied and the name of the embodiment of the present invention are different, It does not affect the gist of the claimed invention in the embodiments of the invention.
  • the program that operates on the device related to the present invention may be a program that controls the Central Processing Unit (CPU) or the like to cause the computer to function so as to realize the functions of the above-described embodiments related to the present invention. ..
  • the program or information handled by the program is temporarily read into a volatile memory such as Random Access Memory (RAM) at the time of processing, or stored in a nonvolatile memory such as a flash memory or a Hard Disk Drive (HDD).
  • RAM Random Access Memory
  • HDD Hard Disk Drive
  • the CPU reads, corrects, and writes.
  • the “computer system” referred to here is a computer system built in the apparatus and includes operating systems and hardware such as peripheral devices.
  • the “computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, or the like.
  • a "computer-readable recording medium” means that a program can be held dynamically for a short period of time, such as a communication line for transmitting the program via a network such as the Internet or a communication line such as a telephone line. It may include a program that holds a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or a client in that case. Further, the above-mentioned program may be for realizing a part of the above-mentioned functions, and may be one for realizing the above-mentioned functions in combination with a program already recorded in the computer system. ..
  • each functional block or various features of the apparatus used in the above-described embodiments may be implemented or executed by an electric circuit, that is, typically an integrated circuit or a plurality of integrated circuits.
  • An electrical circuit designed to perform the functions described herein may be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA), or other. Programmable logic devices, discrete gate 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 any conventional processor, controller, microcontroller, or state machine.
  • the general-purpose processor or each of the circuits described above may be configured by a digital circuit or an analog circuit. Further, in the case where an integrated circuit technology that replaces the current integrated circuit appears due to the progress of semiconductor technology, it is also possible to use the integrated circuit according to the technology.
  • the present invention is not limited to the above embodiment. Although an example of the apparatus is described in the embodiment, the present invention is not limited to this, and a stationary or non-movable electronic device installed indoors or outdoors, for example, an AV device, a kitchen device, It can be applied to terminal devices or communication devices such as cleaning / laundry equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.

Abstract

Provided is a feature pertaining to a terminal device, a base station device, a communication method, and an integrated circuit with which it is possible to perform communication efficiently. When the terminal device connects to an evolved packet core (EPC) using evolved universal terrestrial radio access (EUTRA) wireless technology, the terminal device, if first information is being accumulated, includes information indicating the presence of the first information as information to be included in an RRC connect setup completion message. When connecting to an EPC or 5GC using EUTRA wireless technology, the terminal device, if second information is being accumulated, includes information indicating the presence of the second information as information to be included in the RRC connect setup completion message, regardless of which of core networks the terminal device connects to.

Description

端末装置、基地局装置、通信方法、および、集積回路Terminal device, base station device, communication method, and integrated circuit
　本発明は、端末装置、基地局装置、通信方法、および、集積回路に関する。本願は、２０１８年１１月７日に日本に出願された特願２０１８－２０９６９９号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit. The present application claims priority based on Japanese Patent Application No. 2018-209699 filed in Japan on Nov. 7, 2018, and the content thereof is incorporated herein.
　セルラ－移動通信の無線アクセス方式および無線ネットワーク（以下、「Ｌｏｎｇ　Ｔｅｒｍ　Ｅｖｏｌｕｔｉｏｎ（ＬＴＥ：登録商標）」、または、「Ｅｖｏｌｖｅｄ　Ｕｎｉｖｅｒｓａｌ　Ｔｅｒｒｅｓｔｒｉａｌ　Ｒａｄｉｏ　Ａｃｃｅｓｓ：ＥＵＴＲＡまたはＥ－ＵＴＲＡ」と称する。）、及びコアネットワーク（以下、「Ｅｖｏｌｖｅｄ　Ｐａｃｋｅｔ　Ｃｏｒｅ：ＥＰＣ」）が、第三世代パートナーシッププロジェクト（３ｒｄ　Ｇｅｎｅｒａｔｉｏｎ　Ｐａｒｔｎｅｒｓｈｉｐ　Ｐｒｏｊｅｃｔ：３ＧＰＰ）において検討されている。 Wireless access method and wireless network of cellular-mobile communication (hereinafter, referred to as “Long Term Evolution (LTE: registered trademark)” or “Evolved Universal Terrestrial Radio Access: EUTRA or E-UTRA”) and core network ( Below, "Evolved Packet Core: EPC") is being considered in the 3rd Generation Partnership Project (3rd Generation Partnership Project: 3GPP).
　また、３ＧＰＰにおいて、第５世代のセルラ－システムに向けた無線アクセス方式および無線ネットワーク技術として、ＬＴＥの拡張技術であるＬＴＥ－Ａｄｖａｎｃｅｄ　Ｐｒｏおよび新しい無線アクセス技術であるＮＲ（Ｎｅｗ　Ｒａｄｉｏ　ｔｅｃｈｎｏｌｏｇｙ）の技術検討及び規格策定が行われている（非特許文献１）。また第５世代セルラーシステムに向けたコアネットワークである、５ＧＣ（５　Ｇｅｎｅｒａｔｉｏｎ　Ｃｏｒｅ　Ｎｅｔｗｏｒｋ）の検討も行われている（非特許文献２）。 Also, in 3GPP, as a wireless access method and wireless network technology for the fifth-generation cellular system, LTE-Advanced Pro, which is an extension technology of LTE, and a new wireless access technology, NR (New Radio technology), are being studied. And standards are being developed (Non-Patent Document 1). In addition, 5GC (5 Generation Core Network), which is a core network for the fifth-generation cellular system, is also being studied (Non-Patent Document 2).
　ＥＰＣに接続するＥＵＴＲＡの端末装置は、無線リソース制御（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌ：ＲＲＣ）接続のセットアップを完了する際に基地局装置に送信するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）に、端末装置が蓄積（Ｓｔｏｒｅ）した様々な情報の有無を示す情報を含める機能をもつ（非特許文献４）。非特許文献４では、前記蓄積した情報として、サービングセルおよび隣接セルの測定結果に関する情報、ブルートゥース（登録商標）の測定結果に関する情報、ＷＬＡＮの測定結果に関する情報、端末装置の移動履歴情報などが含まれる。これらの蓄積した情報のすべてあるいは一部は、ネットワークの最適化のために統計的に使用されてもよいが、５ＧＣは未だこれらの機能の一部を端末装置に設定する機能を持たないため、端末装置は５ＧＣに接続する場合にはこれらの蓄積（Ｓｔｏｒｅ）した様々な情報の有無を示す情報をＲＲＣ接続セットアップ完了メッセージに含めないことが非特許文献４に規定されている。 The EUTRA terminal device that connects to the EPC stores the message (RRC connection setup completion message) sent to the base station device when the setup of the radio resource control (Radio Resource Control: RRC) connection is completed by the terminal device (Store). ) Has a function of including information indicating the presence or absence of various information (Non-Patent Document 4). In Non-Patent Document 4, the accumulated information includes information about measurement results of a serving cell and an adjacent cell, information about measurement results of Bluetooth (registered trademark), information about measurement results of WLAN, and movement history information of terminal devices. .. All or part of this accumulated information may be statistically used for network optimization, but since 5GC does not yet have the function of setting some of these functions in the terminal device, It is specified in Non-Patent Document 4 that the terminal device does not include information indicating the presence or absence of various stored information in the RRC connection setup completion message when connecting to the 5GC.
　しかしながら、蓄積された情報はネットワークの最適化の目的だけではなく、基地局装置が端末装置の状態を把握して最適な通信パラメータを設定するために用いることができる。 However, the accumulated information can be used not only for the purpose of network optimization, but also for the base station device to grasp the state of the terminal device and set the optimum communication parameters.
　本発明の一態様は、上記した事情に鑑みてなされたもので、基地局装置との通信を効率的に行うことができる端末装置、基地局装置、該端末装置に用いられる方法、該端末装置に実装される集積回路を提供することを目的の一つとする。 One aspect of the present invention has been made in view of the above circumstances, and a terminal device capable of efficiently performing communication with a base station device, a base station device, a method used for the terminal device, and the terminal device. It is an object of the present invention to provide an integrated circuit mounted on.
　（１）上記の目的を達成するために、本発明の一態様は、以下のような手段を講じた。すなわち、本発明の第１の態様は、基地局装置と通信する端末装置であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する受信部と、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する送信部と、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する処理部とを備え、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (1) In order to achieve the above object, one aspect of the present invention takes the following means. That is, the first aspect of the present invention is a terminal device that communicates with a base station device, wherein the system information notified from the base station device and a message instructing establishment of an RRC connection transmitted from the base station device are provided. And a processing unit for selecting information to be included in the RRC connection setup completion message, a transmission unit for transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment. And when the terminal device connects to the EPC using the EUTRA wireless technology, if the first information is stored, information indicating that the first information exists is added to the RRC connection setup completion message. Including, when the terminal device connects to EPC or 5GC by EUTRA wireless technology, which core network to connect to Regardless Luke, include information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（２）本発明の第２の態様は、端末装置と通信する基地局装置であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する送信部と、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する受信部と、前記システム情報に含める情報を選択する処理部とを備え、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (2) A second aspect of the present invention is a base station device that communicates with a terminal device, the transmitting unit transmitting system information and a message (RRC connection setup message) instructing establishment of an RRC connection, and an RRC. The terminal device does not connect to the EPC using the EUTRA wireless technology, including a receiving unit that receives a message (RRC connection setup completion message) notifying completion of connection establishment and a processing unit that selects information to be included in the system information. In this case, if the first information is stored, the system information includes information instructing the terminal device to include the information indicating that the first information exists in the RRC connection setup completion message.
　（３）本発明の第３の態様は、基地局装置と通信する端末装置に適用される通信方法であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信するステップと、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信するステップと、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択するステップとを少なくとも含み、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (3) A third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device, comprising system information notified from the base station device and RRC transmitted from the base station device. A step of receiving a message instructing the establishment of a connection, a step of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message And at least the step of selecting the first information is stored in the RRC when the terminal device connects to the EPC using the EUTRA wireless technology, the information indicating that the first information exists is stored in the RRC. When the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, it is included in the connection setup completion message. To, whether to connect to any of the core network includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（４）本発明の第４の態様は、端末装置と通信する基地局装置に適用される通信方法であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信するステップと、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信するステップと、前記システム情報に含める情報を選択するステップとを少なくとも含み、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (4) A fourth aspect of the present invention is a communication method applied to a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. At least, a step of receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment, and a step of selecting information to be included in the system information, wherein the terminal device uses EUTRA wireless technology. When not connecting to the EPC, the system is provided with information for instructing the terminal device to include information indicating that the first information is present if the first information is stored in the RRC connection setup completion message. Include in information.
　（５）本発明の第５の態様は、基地局装置と通信する端末装置に実装される集積回路であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する機能と、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する機能と、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する機能を前記端末装置に対して発揮させ、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (5) A fifth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, wherein system information notified from the base station device and RRC transmitted from the base station device are provided. A function of receiving a message instructing the establishment of a connection, a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message. If the terminal device is caused to exhibit the function of selecting, and the terminal device connects to the EPC by the EUTRA wireless technology, the first information exists if the first information is stored. When the terminal device connects to the EPC or 5GC by the EUTRA wireless technology by including the information shown in the RRC connection setup completion message. To, whether to connect to any of the core network includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（６）本発明の第６の態様は、端末装置と通信する基地局装置に実装される集積回路であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する機能と、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する機能と、前記システム情報に含める情報を選択する機能を前記基地局装置に対して発揮させ、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (6) A sixth aspect of the present invention is an integrated circuit mounted in a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. The base station device, the terminal device having the function to perform, a function to receive a message notifying the completion of the RRC connection establishment (RRC connection setup completion message), and a function to select information to be included in the system information. If the terminal device does not connect to the EPC using the EUTRA wireless technology, the terminal device may include information indicating that the first information exists if the first information is stored in the RRC connection setup completion message. Include instructing information in the system information.
　なお、これらの包括的または具体的な態様は、システム、装置、方法、集積回路、コンピュータプログラム、または、記録媒体で実現されてもよく、システム、装置、方法、集積回路、コンピュータプログラムおよび記録媒体の任意な組み合わせで実現されてもよい。 Note that these comprehensive or specific aspects may be realized by a system, a device, a method, an integrated circuit, a computer program, or a recording medium. The system, the device, the method, the integrated circuit, the computer program, and the recording medium. May be realized in any combination.
　本発明の一態様によれば、端末装置は、必要とされる有用な情報を基地局装置に通知することができ、効率的に通信を行うことができる。 According to one aspect of the present invention, the terminal device can notify the base station device of necessary and useful information, and can efficiently perform communication.
本発明の実施の形態に係る通信システムの概略図。1 is a schematic diagram of a communication system according to an embodiment of the present invention. 本発明の実施の形態における、ＥＵＴＲＡにおける端末装置と基地局装置のＵＰ及びＣＰのプロトコルスタック図。FIG. 3 is a protocol stack diagram of UP and CP of a terminal device and a base station device in EUTRA in the embodiment of the present invention. 本発明の実施の形態における、ＮＲにおける端末装置と基地局装置のＵＰ及びＣＰのプロトコルスタック図。FIG. 3 is a protocol stack diagram of UP and CP of a terminal device and a base station device in NR in the embodiment of the present invention. 本発明の実施の形態におけるＲＲＣ接続確立手順のフローの一例を示す図。The figure which shows an example of the flow of the RRC connection establishment procedure in embodiment of this invention. 本発明の実施の形態における端末装置の構成を示すブロック図。The block diagram which shows the structure of the terminal device in embodiment of this invention. 本発明の実施の形態における基地局装置の構成を示すブロック図。The block diagram which shows the structure of the base station apparatus in embodiment of this invention. 本発明の実施の形態におけるＲＲＣ接続確立手順のフローの一例を示す図。The figure which shows an example of the flow of the RRC connection establishment procedure in embodiment of this invention. 本発明の実施の形態におけるＲＲＣ接続セットアップ完了メッセージのコンテンツ設定手順のフローの一部の一例を示す図。The figure which shows an example of a part of flow of the content setting procedure of the RRC connection setup completion message in embodiment of this invention. 本発明の実施の形態におけるＲＲＣ接続セットアップ完了メッセージのコンテンツ設定手順のフローの一部の別の一例を示す図。The figure which shows another example of a part of flow of the content setting procedure of the RRC connection setup completion message in embodiment of this invention.
　以下、本発明の実施の形態について、図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
　ＬＴＥ（およびＬＴＥ－Ａ　Ｐｒｏ）とＮＲは、異なるＲＡＴとして定義されてよい。また、ＮＲとＭｕｌｔｉ　Ｒａｄｉｏ　Ｄｕａｌ　ｃｏｎｎｅｃｔｉｖｉｔｙ（ＭＲ－ＤＣ）で接続可能なＬＴＥは、従来のＬＴＥと区別されてもよい。本実施形態はＮＲ、ＬＴＥおよび他のＲＡＴに適用されてよい。以下の説明では、ＬＴＥおよびＮＲに関連する用語を用いて説明するが、他の用語を用いる他の技術において適用されてもよい。また、本実施形態でのＥ－ＵＴＲＡ（ＥＵＴＲＡ）という用語は、ＬＴＥという用語に置き換えられてもよい。また、ＬＴＥという用語はＥ－ＵＴＲＡ（ＥＵＴＲＡ）という用語に置き換えられてもよい。 LTE (and LTE-A Pro) and NR may be defined as different RATs. In addition, LTE that can be connected by NR and Multi Radio Dual connectivity (MR-DC) may be distinguished from conventional LTE. This embodiment may be applied to NR, LTE and other RATs. Although the following description uses terms related to LTE and NR, they may be applied to other techniques using other terms. Further, the term E-UTRA (EUTRA) in this embodiment may be replaced with the term LTE. Also, the term LTE may be replaced with the term E-UTRA (EUTRA).
　図１は本発明の各実施の形態に係る通信システムの概略図である。 FIG. 1 is a schematic diagram of a communication system according to each embodiment of the present invention.
　Ｅ－ＵＴＲＡ１００は非特許文献３等に記載の無線アクセス技術であり、１つ又は複数の周波数帯域で構成するセルグループ（Ｃｅｌｌ　Ｇｒｏｕｐ：ＣＧ）から成る。ｅＮＢ（Ｅ－ＵＴＲＡＮ　Ｎｏｄｅ　Ｂ）１０２は、Ｅ－ＵＴＲＡの基地局装置である。ＥＰＣ（Ｅｖｏｌｖｅｄ　Ｐａｃｋｅｔ　Ｃｏｒｅ）１０４は、非特許文献１４等に記載のコア網（コアネットワーク）であり、Ｅ－ＵＴＲＡ用コア網として設計された。インタフェース１１２はｅＮＢ１０２とＥＰＣ１０４の間のインタフェース（ｉｎｔｅｒｆａｃｅ）であり、制御信号が通る制御プレーン（Ｃｏｎｔｒｏｌ　Ｐｌａｎｅ：ＣＰ）と、そのユーザデータが通るユーザプレーン（Ｕｓｅｒ　Ｐｌａｎｅ：ＵＰ）が存在する。 E-UTRA100 is a radio access technology described in Non-Patent Document 3 and the like, and is composed of a cell group (Cell Group: CG) configured by one or a plurality of frequency bands. The eNB (E-UTRAN Node B) 102 is an E-UTRA base station device. The EPC (Evolved Packet Core) 104 is a core network (core network) described in Non-Patent Document 14 and the like, and was designed as a core network for E-UTRA. The interface 112 is an interface between the eNB 102 and the EPC 104, and has a control plane (Control Plane: CP) through which a control signal passes and a user plane (User Plane: UP) through which the user data passes.
　ＮＲ１０６は非特許文献９等に記載の無線アクセス技術であり、１つ又は複数の周波数帯域で構成するセルグループ（Ｃｅｌｌ　Ｇｒｏｕｐ：ＣＧ）から成る。ｇＮＢ（ｇ　Ｎｏｄｅ　Ｂ）１０８は、ＮＲの基地局装置である。５ＧＣ１１０は、非特許文献２等に記載のコア網であり、ＮＲ用コア網として設計されているが、５ＧＣに接続する機能をもつＥ－ＵＴＲＡのコア網として使われてもよい。以下Ｅ－ＵＴＲＡとは５ＧＣに接続する機能をもつＥ－ＵＴＲＡを含んでもよい。 NR106 is a radio access technology described in Non-Patent Document 9 and the like, and includes a cell group (Cell Group: CG) configured by one or a plurality of frequency bands. The gNB (g Node B) 108 is an NR base station device. The 5GC 110 is a core network described in Non-Patent Document 2 and is designed as an NR core network, but may be used as an E-UTRA core network having a function of connecting to 5GC. Hereinafter, E-UTRA may include E-UTRA having a function of connecting to 5GC.
　インタフェース１１４はｅＮＢ１０２と５ＧＣ１１０の間のインタフェース、インタフェース１１６はｇＮＢ１０８と５ＧＣ１１０の間のインタフェース、インタフェース１１８はｇＮＢ１０８とＥＰＣ１０４の間のインタフェース、インタフェース１２０はｅＮＢ１０２とｇＮＢ１０８の間のインタフェース、インタフェース１２４はＥＰＣ１０４と５ＧＣ１１０間のインタフェースである。インタフェース１１４、インタフェース１１６、インタフェース１１８、インタフェース１２０、インタフェース１２４はＣＰのみ、又はＵＰのみ、又はＣＰ及びＵＰ両方を通すインタフェースである。また、インタフェース１１４、インタフェース１１６、インタフェース１１８、インタフェース１２０、インタフェース１２４は、通信事業者が提供する通信システムに応じて存在しない場合もある。 The interface 114 is the interface between the eNB 102 and the 5GC 110, the interface 116 is the interface between the gNB 108 and the 5GC 110, the interface 118 is the interface between the gNB 108 and the EPC 104, the interface 120 is the interface between the eNB 102 and the gNB 108, and the interface 124 is the EPC 104 and the 5GC 110. Is an interface between. The interface 114, the interface 116, the interface 118, the interface 120, and the interface 124 are interfaces that pass only CP, only UP, or both CP and UP. The interface 114, the interface 116, the interface 118, the interface 120, and the interface 124 may not exist depending on the communication system provided by the communication carrier.
　ＵＥ１２２はＥ－ＵＴＲＡに対応、ＮＲに対応、またはＥ－ＵＴＲＡ及びＮＲ両方に対応した端末装置（Ｕｓｅｒ　Ｅｑｕｉｐｍｅｎｔ：ＵＥ）である。 The UE 122 is a terminal device (User Equipment: UE) that supports E-UTRA, NR, or both E-UTRA and NR.
　図２は本発明の各実施の形態における、Ｅ－ＵＴＲＡ無線アクセスレイヤにおける端末装置と基地局装置のＵＰ及びＣＰのプロトコルスタック（Ｐｒｏｔｏｃｏｌ　Ｓｔａｃｋ）図である。 FIG. 2 is a protocol stack diagram of UP and CP of the terminal device and the base station device in the E-UTRA radio access layer in each embodiment of the present invention.
　図２（Ａ）はＵＥ１２２がｅＮＢ１０２と通信を行う際に用いるＵＰのプロトコルスタック図である。 2A is a protocol stack diagram of the UP used when the UE 122 communicates with the eNB 102.
　ＰＨＹ（Ｐｈｙｓｉｃａｌ　ｌａｙｅｒ）２００は、無線物理層（無線物理レイヤ）であり、物理チャネル（Ｐｈｙｓｉｃａｌ　Ｃｈａｎｎｅｌ）を利用して上位層（上位レイヤ）に伝送サービスを提供する。ＰＨＹ２００は、後述する上位のＭＡＣ（Ｍｅｄｉｕｍ　Ａｃｃｅｓｓ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）２０２とトランスポートチャネル（Ｔｒａｎｓｐｏｒｔ　Ｃｈａｎｎｅｌ）で接続される。トランスポートチャネルを介して、ＭＡＣ２０２とＰＨＹ２００の間でデ－タが移動する。ＵＥ１２２とｅＮＢ１０２のＰＨＹ間において、無線物理チャネルを介してデ－タの送受信が行われる。 The PHY (Physical layer) 200 is a wireless physical layer (wireless physical layer), and provides a transmission service to an upper layer (upper layer) using a physical channel (Physical Channel). The PHY 200 is connected to a higher-level MAC (Medium Access Control layer) 202, which will be described later, by a transport channel (Transport Channel). Data moves between the MAC 202 and the PHY 200 via the transport channel. Data is transmitted and received between the PHY of the UE 122 and the eNB 102 via a wireless physical channel.
　ＭＡＣ２０２は、多様な論理チャネル（Ｌｏｇｉｃａｌ　Ｃｈａｎｎｅｌ）を多様なトランスポートチャネルにマッピングを行う媒体アクセス制御層（媒体アクセス制御レイヤ）である。ＭＡＣ２０２は、後述する上位のＲＬＣ（Ｒａｄｉｏ　Ｌｉｎｋ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）２０４と、論理チャネルで接続される。論理チャネルは、伝送される情報の種類によって大きく分けられ、制御情報を伝送する制御チャネルとユ－ザ情報を伝送するトラフィックチャネルに分けられる。ＭＡＣ２０２は、間欠受送信（ＤＲＸ・ＤＴＸ）を行うためにＰＨＹ２００の制御を行う機能、ランダムアクセス（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ）手順を実行する機能、送信電力の情報を通知する機能、ＨＡＲＱ制御を行う機能などを持つ（非特許文献７）。 The MAC 202 is a medium access control layer (medium access control layer) that maps various logical channels (Logical Channels) to various transport channels. The MAC 202 is connected to a higher-order RLC (Radio Link Control layer) 204 described later by a logical channel. Logical channels are roughly classified according to the type of information to be transmitted, and are divided into a control channel for transmitting control information and a traffic channel for transmitting user information. The MAC 202 has a function of controlling the PHY 200 for performing discontinuous transmission (DRX / DTX), a function of executing a random access (Random Access) procedure, a function of notifying transmission power information, a function of performing HARQ control, and the like. Have (Non-Patent Document 7).
　ＲＬＣ２０４は、後述する上位のＰＤＣＰ（Ｐａｃｋｅｔ　Ｄａｔａ　Ｃｏｎｖｅｒｇｅｎｃｅ　Ｐｒｏｔｏｃｏｌ　Ｌａｙｅｒ）２０６から受信したデ－タを分割（Ｓｅｇｍｅｎｔａｔｉｏｎ）し、下位層（下位レイヤ）が適切にデ－タ送信できるようにデ－タサイズを調節する無線リンク制御層（無線リンク制御レイヤ）である。また、ＲＬＣ２００は、各デ－タが要求するＱｏＳ（Ｑｕａｌｉｔｙ　ｏｆ　Ｓｅｒｖｉｃｅ）を保証するための機能も持つ。すなわち、ＲＬＣ２０４は、デ－タの再送制御等の機能を持つ（非特許文献６）。 The RLC 204 divides the data received from the higher-order PDCP (Packet Data Convergence Protocol Layer) 206 described later, and adjusts the data size so that the lower layer (lower layer) can appropriately transmit the data. Wireless link control layer (radio link control layer). The RLC 200 also has a function for guaranteeing the QoS (Quality of Service) required by each data. That is, the RLC 204 has functions such as data retransmission control (Non-Patent Document 6).
　ＰＤＣＰ２０６は、ユーザデータであるＩＰパケット（ＩＰ　Ｐａｃｋｅｔ）を無線区間で効率的に伝送するためのパケットデータ収束プロトコル層（パケットデータ収束プロトコルレイヤ）である。ＰＤＣＰ２０６は、不要な制御情報の圧縮を行うヘッダ圧縮機能を持ってもよい。また、ＰＤＣＰ２０６は、デ－タの暗号化の機能も持ってもよい（非特許文献５）。 The PDCP 206 is a packet data convergence protocol layer (packet data convergence protocol layer) for efficiently transmitting an IP packet (IP Packet) that is user data in a wireless section. The PDCP 206 may have a header compression function that compresses unnecessary control information. The PDCP 206 may also have a data encryption function (Non-Patent Document 5).
　なお、ＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６において処理されたデータの事を、それぞれＭＡＣ　ＰＤＵ（Ｐｒｏｔｏｃｏｌ　Ｄａｔａ　Ｕｎｉｔ）、ＲＬＣ　ＰＤＵ、ＰＤＣＰ　ＰＤＵと呼ぶ。また、ＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６に上位層から渡されるデータ、又は上位層に渡すデータの事を、それぞれＭＡＣ　ＳＤＵ（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ｕｎｉｔ）、ＲＬＣ　ＳＤＵ、ＰＤＣＰ　ＳＤＵと呼ぶ。 The data processed by the MAC 202, RLC 204, and PDCP 206 are called MAC PDU (Protocol Data Unit), RLC PDU, and PDCP PDU, respectively. Further, the data passed from the upper layer to the MAC 202, RLC 204, PDCP 206, or the data passed to the upper layer are called MAC SDU (Service Data Unit), RLC SDU, and PDCP SDU, respectively.
　図２（Ｂ）はＵＥ１２２がｅＮＢ１０２と通信を行う際に用いるＣＰのプロトコルスタック図である。 2B is a protocol stack diagram of the CP used when the UE 122 communicates with the eNB 102.
　ＣＰのプロトコルスタックには、ＰＨＹ２００、ＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６に加え、ＲＲＣ（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）２０８が存在する。ＲＲＣ２０８は、無線ベアラ（Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＲＢ）の設定・再設定などを行い、論理チャネル、トランスポートチャネル及び物理チャネルの制御を行う無線リンク制御層（無線リンク制御レイヤ）である。ＲＢは、シグナリグ無線ベアラ（Ｓｉｇｎａｌｉｎｇ　Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＳＲＢ）とデ－タ無線ベアラ（Ｄａｔａ　Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＤＲＢ）とに分けられてもよく、ＳＲＢは、制御情報であるＲＲＣメッセージを送信する経路として利用されてもよい。ＤＲＢは、ユーザデータを送信する経路として利用されてもよい。ｅＮＢ１０２とＵＥ１２２のＲＲＣ２０８間で各ＲＢの設定が行われてもよい（非特許文献４）。 In the CP protocol stack, in addition to PHY 200, MAC 202, RLC 204, PDCP 206, RRC (Radio Resource Control layer) 208 exists. The RRC 208 is a radio link control layer (radio link control layer) that sets / reconfigures a radio bearer (RB) and controls a logical channel, a transport channel, and a physical channel. The RB may be divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB), and the SRB is used as a route for transmitting an RRC message that is control information. May be. The DRB may be used as a route for transmitting user data. Each RB may be set between the RRC 208 of the eNB 102 and the UE 122 (Non-Patent Document 4).
　前述のＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６、及びＲＲＣ２０８の機能分類は一例であり、各機能の一部あるいは全部が実装されなくてもよい。また、各層の機能の一部あるいは全部が他の層に含まれてもよい。 The above-mentioned function classification of the MAC 202, RLC 204, PDCP 206, and RRC 208 is an example, and some or all of each function may not be implemented. Further, some or all of the functions of each layer may be included in another layer.
　なお、ＩＰレイヤ、及びＩＰレイヤより上のＴＣＰ（Ｔｒａｎｓｍｉｓｓｉｏｎ　Ｃｏｎｔｒｏｌ　Ｐｒｏｔｏｃｏｌ）レイヤ、ＵＤＰ（Ｕｓｅｒ　Ｄａｔａｇｒａｍ　Ｐｒｏｔｏｃｏｌ）レイヤ、アプリケーションレイヤなどは、ＰＤＣＰレイヤの上位レイヤとなる（不図示）。またＲＲＣレイヤやＮＡＳ（ｎｏｎ　Ａｃｃｅｓｓ　Ｓｔｒａｒｕｍ）レイヤもＳＤＡＰレイヤの上位レイヤとなる（不図示）。言い換えれば、ＰＤＣＰレイヤはＲＲＣレイヤ、ＮＡＳレイヤ、ＩＰレイヤ、及びＩＰレイヤより上のＴＣＰ（Ｔｒａｎｓｍｉｓｓｉｏｎ　Ｃｏｎｔｒｏｌ　Ｐｒｏｔｏｃｏｌ）レイヤ、ＵＤＰ（Ｕｓｅｒ　Ｄａｔａｇｒａｍ　Ｐｒｏｔｏｃｏｌ）レイヤ、アプリケーションレイヤの下位レイヤとなる。 Note that the IP layer and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer are upper layers of the PDCP layer (not shown). In addition, the RRC layer and the NAS (non Access Stratum) layer are also upper layers of the SDAP layer (not shown). In other words, the PDCP layer is a lower layer of the RRC layer, the NAS layer, the IP layer, and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer.
　図３は本発明の各実施の形態における、ＮＲ無線アクセスレイヤにおける端末装置と基地局装置のＵＰ及びＣＰのプロトコルスタック（Ｐｒｏｔｏｃｏｌ　Ｓｔａｃｋ）図である。 FIG. 3 is a protocol stack diagram of UP and CP of the terminal device and the base station device in the NR radio access layer in each embodiment of the present invention.
　図３（Ａ）はＵＥ１２２がｇＮＢ１０８と通信を行う際に用いるＵＰのプロトコルスタック図である。 FIG. 3 (A) is a protocol stack diagram of the UP used when the UE 122 communicates with the gNB 108.
　ＰＨＹ（Ｐｈｙｓｉｃａｌ　ｌａｙｅｒ）３００は、ＮＲの無線物理層（無線物理レイヤ）であり、物理チャネル（Ｐｈｙｓｉｃａｌ　Ｃｈａｎｎｅｌ）を利用して上位層に伝送サービスを提供してもよい。ＰＨＹ３００は、後述する上位のＭＡＣ（Ｍｅｄｉｕｍ　Ａｃｃｅｓｓ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）３０２とトランスポートチャネル（Ｔｒａｎｓｐｏｒｔ　Ｃｈａｎｎｅｌ）で接続されてもよい。トランスポートチャネルを介して、ＭＡＣ３０２とＰＨＹ３００の間でデ－タが移動してもよい。ＵＥ１２２とｇＮＢ１０８のＰＨＹ間において、無線物理チャネルを介してデ－タの送受信が行われてもよい。 The PHY (Physical layer) 300 is an NR wireless physical layer (wireless physical layer), and may provide a transmission service to an upper layer by using a physical channel (Physical Channel). The PHY 300 may be connected to a higher-level MAC (Medium Access Control layer) 302, which will be described later, by a transport channel (Transport Channel). Data may move between the MAC 302 and the PHY 300 via the transport channel. Data may be transmitted and received between the PHY of the UE 122 and the gNB 108 via a wireless physical channel.
　ＭＡＣ３０２は、多様な論理チャネル（Ｌｏｇｉｃａｌ　Ｃｈａｎｎｅｌ）を多様なトランスポートチャネルにマッピングを行う媒体アクセス制御層（媒体アクセス制御レイヤ）である。ＭＡＣ３０２は、後述する上位のＲＬＣ（Ｒａｄｉｏ　Ｌｉｎｋ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）３０４と、論理チャネルで接続されてもよい。論理チャネルは、伝送される情報の種類によって大きく分けられ、制御情報を伝送する制御チャネルとユ－ザ情報を伝送するトラフィックチャネルに分けられてもよい。ＭＡＣ３０２は、間欠受送信（ＤＲＸ・ＤＴＸ）を行うためにＰＨＹ３００の制御を行う機能、ランダムアクセス（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ）手順を実行する機能、送信電力の情報を通知する機能、ＨＡＲＱ制御を行う機能などを持ってもよい（非特許文献１３）。 The MAC 302 is a medium access control layer (medium access control layer) that maps various logical channels (Logical Channels) to various transport channels. The MAC 302 may be connected to a higher-level RLC (Radio Link Control layer) 304 described later by a logical channel. The logical channel is roughly classified according to the type of information to be transmitted, and may be divided into a control channel for transmitting control information and a traffic channel for transmitting user information. The MAC 302 has a function of controlling the PHY 300 for performing intermittent transmission (DRX / DTX), a function of executing a random access (Random Access) procedure, a function of notifying transmission power information, a function of performing HARQ control, and the like. You may have (nonpatent literature 13).
　ＲＬＣ３０４は、後述する上位のＰＤＣＰ（Ｐａｃｋｅｔ　Ｄａｔａ　Ｃｏｎｖｅｒｇｅｎｃｅ　Ｐｒｏｔｏｃｏｌ　Ｌａｙｅｒ）２０６から受信したデ－タを分割（Ｓｅｇｍｅｎｔａｔｉｏｎ）し、下位層が適切にデ－タ送信できるようにデ－タサイズを調節する無線リンク制御層（無線リンク制御レイヤ）である。また、ＲＬＣ３０４は、各デ－タが要求するＱｏＳ（Ｑｕａｌｉｔｙ　ｏｆ　Ｓｅｒｖｉｃｅ）を保証するための機能も持ってもよい。すなわち、ＲＬＣ３０４は、デ－タの再送制御等の機能を持ってもよい（非特許文献１２）。 The RLC 304 divides the data received from a higher-order PDCP (Packet Data Convergence Protocol Layer) 206, which will be described later, (Segmentation), and adjusts the data size so that the lower layer can appropriately transmit the data. It is a layer (radio link control layer). The RLC 304 may also have a function of guaranteeing the QoS (Quality of Service) required by each data. That is, the RLC 304 may have functions such as data retransmission control (Non-Patent Document 12).
　ＰＤＣＰ３０６は、ユーザデータであるＩＰパケット（ＩＰ　Ｐａｃｋｅｔ）を無線区間で効率的に伝送するパケットデータ収束プロトコル層（パケットデータ収束プロトコル層）である。ＰＤＣＰ３０６、不要な制御情報の圧縮を行うヘッダ圧縮機能を持ってもよい。また、ＰＤＣＰ３０６は、デ－タの暗号化の機能も持ってもよい（非特許文献１１）。 PDCP 306 is a packet data convergence protocol layer (packet data convergence protocol layer) that efficiently transmits an IP packet (IP Packet) that is user data in a wireless section. The PDCP 306 may have a header compression function that compresses unnecessary control information. The PDCP 306 may also have a data encryption function (Non-Patent Document 11).
　ＳＤＡＰ（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ａｄａｐｔａｔｉｏｎ　Ｐｒｏｔｏｃｏｌ）３１０は、コアネットワークから基地局装置を介して端末装置に送られるダウンリンクのＱｏＳフローとＤＲＢとの対応付け（マッピング：ｍａｐｐｉｎｇ）、及び端末装置から基地局装置を介してコアネットワークに送られるアップリンクのＱｏＳフローと、ＤＲＢとのマッピングを行い、マッピングルール情報を格納する機能を持もつ、サービスデータ適応プロトコル層（サービスデータ適応プロトコルレイヤ）である（非特許文献１６）。端末装置が上位レイヤよりＳＤＡＰ　ＳＤＵをＱｏＳフロー情報と共に受け取った際、格納されているＱｏＳフローとＤＲＢとのマッピングルールに基づいて、ＳＤＡＰ　ＳＤＵを該当するＤＲＢに割り当てる。ＱｏＳフローとＤＲＢとのマッピングルールが格納されていない場合、ＳＤＡＰ　ＳＤＵをデフォルト無線ベアラ（デフォルトＤＲＢ）に割り当ててもよい。ＱｏＳフローは同じＱｏＳポリシーによって処理される、一つ又は複数のサービスデータフロー（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ｆｌｏｗ：ＳＤＦ）から成る（非特許文献２）。またＳＤＡＰはダウンリンクＱｏＳフローの情報を基に、アップリンクのＱｏＳフローとＤＲＢとのマッピングを行う、リフレクティブＱｏＳ（Ｒｅｆｌｅｃｔｉｖｅ　ＱｏＳ）の機能を持ってもよい。またＱｏＳフローとＤＲＢとの対応付けルールが変更になった場合には、エンドマーカー（Ｅｎｄ　Ｍａｒｋｅｒ）ＰＤＵを作成し、変更前のＤＲＢに送信する事により、ＳＤＡＰ　ＳＤＵの順番通りの配信（ｉｎ－ｓｅｑｕｅｎｃｅ　ｄｅｌｉｖｅｒｙ）を保証してもよい（非特許文献２、非特許文献１６）。 The SDAP (Service Data Adaptation Protocol) 310 associates downlink QoS flows sent from the core network to the terminal device via the base station device with the DRB (mapping), and the terminal device via the base station device. Service data adaptation protocol layer (service data adaptation protocol layer) having a function of performing mapping between an uplink QoS flow sent to the core network and DRB and storing mapping rule information (Non-patent document 16). ). When the terminal device receives the SDAP SDU from the upper layer together with the QoS flow information, the SDAP SDU is assigned to the corresponding DRB based on the stored QoS flow and DRB mapping rule. If the QoS flow and DRB mapping rules are not stored, the SDAP SDU may be assigned to the default radio bearer (default DRB). The QoS flow is composed of one or more service data flows (Service Data Flow: SDF) processed by the same QoS policy (Non-Patent Document 2). Further, the SDAP may have a reflective QoS (Reflective QoS) function of mapping the uplink QoS flow and the DRB based on the information of the downlink QoS flow. Also, when the association rule between the QoS flow and DRB is changed, an end marker (End Marker) PDU is created and sent to the DRB before the change so that the SDAP SDU is delivered in order (in- The sequence delivery may be guaranteed (Non-patent document 2, Non-patent document 16).
　エンドマーカーＰＤＵとは、非特許文献１６に記載のＳＤＡＰ制御ＰＤＵで、ＵＥのＳＤＡＰエンティティが、本エンドマーカーＰＤＵのＱｏＳフロー識別子フィールドに含まれるＱｏＳフロー識別子に対応したＱｏＳフローと、本エンドマーカーＰＤＵが送信された無線ベアラとの対応（ｍａｐｐｉｎｇ）が終了する事を通知するために使われる。 The end marker PDU is the SDAP control PDU described in Non-Patent Document 16, in which the SDAP entity of the UE corresponds to the QoS flow identifier included in the QoS flow identifier field of the end marker PDU, and the end marker PDU. Is used to notify that the mapping with the transmitted radio bearer is completed.
　なお、ＩＰレイヤ、及びＩＰレイヤより上のＴＣＰ（Ｔｒａｎｓｍｉｓｓｉｏｎ　Ｃｏｎｔｒｏｌ　Ｐｒｏｔｏｃｏｌ）レイヤ、ＵＤＰ（Ｕｓｅｒ　Ｄａｔａｇｒａｍ　Ｐｒｏｔｏｃｏｌ）レイヤ、アプリケーションレイヤなどは、ＳＤＡＰレイヤの上位レイヤとなる（不図示）。またＲＲＣレイヤやＮＡＳ（ｎｏｎ　Ａｃｃｅｓｓ　Ｓｔｒａｒｕｍ）レイヤもＳＤＡＰレイヤの上位レイヤとなる（不図示）。ＮＡＳレイヤにおいて、サービスデータフローとＱｏＳフローとの対応付が行われる。言い換えれば、ＳＤＡＰレイヤはＲＲＣレイヤ、ＮＡＳレイヤ、ＩＰレイヤ、及びＩＰレイヤより上のＴＣＰ（Ｔｒａｎｓｍｉｓｓｉｏｎ　Ｃｏｎｔｒｏｌ　Ｐｒｏｔｏｃｏｌ）レイヤ、ＵＤＰ（Ｕｓｅｒ　Ｄａｔａｇｒａｍ　Ｐｒｏｔｏｃｏｌ）レイヤ、アプリケーションレイヤの下位レイヤとなる。 Note that the IP layer and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer are upper layers of the SDP layer (not shown). In addition, the RRC layer and the NAS (non Access Stratum) layer are also upper layers of the SDAP layer (not shown). In the NAS layer, the service data flow and the QoS flow are associated with each other. In other words, the SDAP layer is a lower layer of the RRC layer, the NAS layer, the IP layer, and the TCP (Transmission Control Protocol) layer, the UDP (User Datagram Protocol) layer, and the application layer above the IP layer.
　なお、ＭＡＣ３０２、ＲＬＣ３０４、ＰＤＣＰ３０６、ＳＤＡＰ３１０において処理されたデータの事を、それぞれＭＡＣ　ＰＤＵ（Ｐｒｏｔｏｃｏｌ　Ｄａｔａ　Ｕｎｉｔ）、ＲＬＣ　ＰＤＵ、ＰＤＣＰ　ＰＤＵ、ＳＤＡＰ　ＰＤＵと呼んでもよい。また、ＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６に上位層から渡されるデータ、又は上位層に渡すデータの事を、それぞれＭＡＣ　ＳＤＵ（Ｓｅｒｖｉｃｅ　Ｄａｔａ　Ｕｎｉｔ）、ＲＬＣ　ＳＤＵ、ＰＤＣＰ　ＳＤＵ、ＳＤＡＰ　ＳＤＵと呼んでもよい。 The data processed by the MAC 302, RLC 304, PDCP 306, and SDAP 310 may be called MAC PDU (Protocol Data Unit), RLC PDU, PDCP PDU, and SDP PDU, respectively. Further, the data passed from the upper layer to the MAC 202, the RLC 204, and the PDCP 206, or the data passed to the upper layer may be referred to as a MAC SDU (Service Data Unit), an RLC SDU, a PDCP SDU, and an SDAP SDU, respectively.
　図３（Ｂ）はＵＥ１２２がｇＮＢ１０８と通信を行う際に用いるＣＰのプロトコルスタック図である。 FIG. 3B is a protocol stack diagram of the CP used when the UE 122 communicates with the gNB 108.
　ＣＰのプロトコルスタックには、ＰＨＹ３００、ＭＡＣ３０２、ＲＬＣ３０４、ＰＤＣＰ３０６に加え、ＲＲＣ（Ｒａｄｉｏ　Ｒｅｓｏｕｒｃｅ　Ｃｏｎｔｒｏｌ　ｌａｙｅｒ）３０８が存在する。ＲＲＣ３０８は、無線ベアラ（Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＲＢ）の設定・再設定などを行い、論理チャネル、トランスポートチャネル及び物理チャネルの制御を行う無線リンク制御層（無線リンク制御レイヤ）である。ＲＢは、シグナリグ無線ベアラ（Ｓｉｇｎａｌｉｎｇ　Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＳＲＢ）とデ－タ無線ベアラ（Ｄａｔａ　Ｒａｄｉｏ　Ｂｅａｒｅｒ：ＤＲＢ）とに分けられてもよく、ＳＲＢは、制御情報であるＲＲＣメッセージを送信する経路として利用されてもよい。ＤＲＢは、ユーザデータを送信する経路として利用されてもよい。ｇＮＢ１０８とＵＥ１２２のＲＲＣ３０８間で各ＲＢの設定が行われてもよい。またＲＢのうちＲＬＣ３０４とＭＡＣ３０２で構成される部分をＲＬＣベアラと呼んでもよい（非特許文献１０）。 In the CP protocol stack, in addition to PHY 300, MAC 302, RLC 304, PDCP 306, there is RRC (Radio Resource Control layer) 308. The RRC 308 is a radio link control layer (radio link control layer) that sets and resets a radio bearer (RB) and controls a logical channel, a transport channel, and a physical channel. The RB may be divided into a Signaling Radio Bearer (SRB) and a Data Radio Bearer (DRB), and the SRB is used as a route for transmitting an RRC message that is control information. May be. The DRB may be used as a route for transmitting user data. Each RB may be set between the gNB 108 and the RRC 308 of the UE 122. Also, a part of the RB that is composed of the RLC 304 and the MAC 302 may be called an RLC bearer (Non-Patent Document 10).
　ＳＲＢは、ＣＣＣＨ論理チャネルを用いるＲＲＣメッセージのためのＳＲＢ（ＳＲＢ０）、ＤＣＣＨ論理チャネルを用いるＲＲＣメッセージとＳＲＢ２の確立よりも前に送信されるＮＡＳメッセージのためのＳＲＢ（ＳＲＢ１）、ＤＣＣＨ論理チャネルを用いるＮＡＳメッセージと記録された測定情報（Ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔ　ｉｎｆｏｒｍａｔｉｏｎ）などを含むＲＲＣメッセージのためのＳＲＢ（ＳＲＢ２）、が定義されてよい。また、それ以外のＳＲＢが定義されてよい。 The SRB provides SRB (SRB0) for RRC message using CCCH logical channel, SRB (SRB1) for RRC message using DCCH logical channel and NAS message sent before establishment of SRB2, DCCH logical channel. The NAS message to be used and the SRB (SRB2) for the RRC message including the recorded measurement information (Logged measurement information) and the like may be defined. Also, other SRBs may be defined.
　前述のＭＡＣ３０２、ＲＬＣ３０４、ＰＤＣＰ３０６、ＳＤＡＰ３１０、及びＲＲＣ３０８の機能分類は一例であり、各機能の一部あるいは全部が実装されなくてもよい。また、各層（各レイヤ）の機能の一部あるいは全部が他の層（レイヤ）に含まれてもよい。 The above-mentioned functional classification of the MAC 302, RLC 304, PDCP 306, SDAP 310, and RRC 308 is an example, and some or all of the functions may not be implemented. Further, some or all of the functions of each layer (each layer) may be included in another layer (layer).
　なお、本発明の各実施の形態では、以下Ｅ－ＵＴＲＡのプロトコルとＮＲのプロトコルを区別するため、ＭＡＣ２０２、ＲＬＣ２０４、ＰＤＣＰ２０６、及びＲＲＣ２０８を、それぞれＥ－ＵＴＲＡ用ＭＡＣ又はＬＴＥ用ＭＡＣ、Ｅ－ＵＴＲＡ用ＲＬＣ又はＬＴＥ用ＲＬＣ、Ｅ－ＵＴＲＡ用ＰＤＣＰ又はＬＴＥ用ＰＤＣＰ、及びＥ－ＵＴＲＡ用ＲＲＣ又はＬＴＥ用ＲＲＣと呼ぶ事もある。また、ＭＡＣ３０２、ＲＬＣ３０４、ＰＤＣＰ３０６、ＲＲＣ３０８を、それぞれＮＲ用ＭＡＣ、ＮＲ用ＲＬＣ、ＮＲ用ＲＬＣ、及びＮＲ用ＲＲＣと呼ぶ事もある。又は、Ｅ－ＵＴＲＡ　ＰＤＣＰ又はＬＴＥ　ＰＤＣＰ、ＮＲ　ＰＤＣＰなどとスペースを用いて記述する場合もある。 In each embodiment of the present invention, the MAC 202, RLC 204, PDCP 206, and RRC 208 are referred to as E-UTRA MAC or LTE MAC and E-UTRA, respectively, in order to distinguish the E-UTRA protocol from the NR protocol. RLC for LTE or RLC for LTE, PDCP for E-UTRA or PDCP for LTE, and RRC for E-UTRA or RRC for LTE. Further, the MAC 302, RLC 304, PDCP 306, and RRC 308 may be referred to as NR MAC, NR RLC, NR RLC, and NR RRC, respectively. Alternatively, it may be described using a space such as E-UTRA PDCP or LTE PDCP, NR PDCP.
　また、図１に示す通り、ｅＮＢ１０２、ｇＮＢ１０８、ＥＰＣ１０４、５ＧＣ１１０は、インタフェース１１２、インタフェース１１６、インタフェース１１８、インタフェース１２０、及びインタフェース１１４を介して繋がってもよい。このため、多様な通信システムに対応するため、図２のＲＲＣ２０８は、図３のＲＲＣ３０８に置き換えられてもよい。また図２のＰＤＣＰ２０６は、図３のＰＤＣＰ３０６に置き換えられてもよい。また、図３のＲＲＣ３０８は、図２のＲＲＣ２０８の機能を含んでもよい。また図３のＰＤＣＰ３０６は、図２のＰＤＣＰ２０６であってもよい。 Further, as shown in FIG. 1, the eNB 102, gNB 108, EPC 104, and 5GC 110 may be connected via the interface 112, the interface 116, the interface 118, the interface 120, and the interface 114. Therefore, the RRC 208 of FIG. 2 may be replaced with the RRC 308 of FIG. 3 to support various communication systems. The PDCP 206 in FIG. 2 may be replaced with the PDCP 306 in FIG. Further, the RRC 308 of FIG. 3 may include the function of the RRC 208 of FIG. Further, the PDCP 306 of FIG. 3 may be the PDCP 206 of FIG.
　基地局装置は、基地局装置によって制御される通信可能範囲（通信エリア）を１つまたは複数のセルとして端末装置をサーブしてもよい。また、基地局装置は、１または複数の送受信点によって制御される通信可能範囲（通信エリア）を１つまたは複数のセルとして端末装置をサーブしてもよい。また、ＮＲでは１つのセルを複数の部分領域（Ｂｅａｍｅｄ　ａｒｅａ、またはＢｅａｍｅｄ　ｃｅｌｌとも称する）にわけ、それぞれの部分領域において端末装置をサーブしてもよい。端末装置は、セルの中を通信エリアとみなして動作する。端末装置は、非無線接続時（アイドル状態、ＲＲＣ＿ＩＤＬＥ状態とも称する）において、セル再選択手順によって別の適切なセルへ移動してもよい。端末装置は、無線接続時（コネクティッド状態、ＲＲＣ＿ＣＯＮＮＥＣＴＥＤ状態とも称する）において、ハンドオ－バ手順によって別のセルへ移動してもよい。適切なセルとは、一般的に、基地局装置から示される情報に基づいて端末装置のアクセスが禁止されていないと判断されるセルであって、かつ、下りリンクの受信品質が所定の条件を満たすセルのことを示す。また、端末装置は、不活動状態（インアクティブ状態とも称する）において、セル再選択手順によって別の適切なセルへ移動してもよい。端末装置は、不活動状態において、ハンドオ－バ手順によって別のセルへ移動してもよい。 The base station device may serve the terminal device with the communicable range (communication area) controlled by the base station device as one or more cells. Further, the base station device may serve the terminal device by setting the communicable range (communication area) controlled by one or a plurality of transmission / reception points as one or a plurality of cells. Further, in NR, one cell may be divided into a plurality of partial areas (also referred to as beamed area or beamed cell) and the terminal device may be served in each partial area. The terminal device operates by regarding the inside of the cell as a communication area. The terminal device may move to another appropriate cell by a cell reselection procedure during non-wireless connection (idle state, also referred to as RRC_IDLE state). The terminal device may move to another cell by a hand-over procedure when wirelessly connected (also referred to as a connected state or an RRC_CONNECTED state). The appropriate cell is generally a cell in which access to the terminal device is determined not to be prohibited based on the information indicated by the base station device, and the downlink reception quality meets a predetermined condition. Indicates a cell to fill. Further, the terminal device may move to another appropriate cell in a cell reselection procedure in the inactive state (also referred to as the inactive state). In the inactive state, the terminal device may move to another cell by a handover procedure.
　端末装置がある基地局装置と通信可能であるとき、その基地局装置のセルのうち、端末装置との通信に使用されるように設定されているセルを在圏セル（Ｓｅｒｖｉｎｇ　ｃｅｌｌ、サービングセル）と称して、その他の通信に使用されないセルは周辺セル（Ｎｅｉｇｈｂｏｒｉｎｇ　ｃｅｌｌ）と称してよい。また、サービングセルにおいて必要となるシステム情報の一部あるいは全部は、端末装置に対して、別のセルで報知または通知される場合もある。 When a terminal device can communicate with a certain base station device, among the cells of the base station device, the cell that is set to be used for communication with the terminal device is defined as a serving cell (serving cell). In other words, a cell that is not used for other communication may be referred to as a peripheral cell (Neighboring cell). In addition, some or all of the system information required in the serving cell may be reported or notified to the terminal device in another cell.
　ドライブテストの最小化（Ｍｉｎｉｍｉｚａｔｉｏｎ　ｏｆ　Ｄｒｉｖｅ　Ｔｅｓｔｓ：ＭＤＴ）について説明する。ＭＤＴとは、例えばネットワークがネットワークの最適化のために端末装置に測定を行わせて報告させることができる仕組みである。 Explain the minimization of drive tests (Minimization of Drive Tests: MDT). MDT is, for example, a mechanism by which a network can cause a terminal device to perform measurement and report it in order to optimize the network.
　非特許文献１７では、ＵＴＲＡＮとＥＵＴＲＡＮに対する制御プレーンを用いたＭＤＴのための端末装置固有の測定の収集をサポートするための機能とプロシージャが規定されている。ＮＲのネットワークに対しても上記と同様の規定が適用されてもよい。 Non-Patent Document 17 defines functions and procedures for supporting the collection of terminal device-specific measurements for MDT using a control plane for UTRAN and EUTRAN. The same rules as above may be applied to the NR network.
　ＭＤＴにはＬｏｇｇｅｄ　ＭＤＴと呼ばれるモードとＩｍｍｅｄｉａｔｅ　ＭＤＴと呼ばれるモードとが存在する。ＭＤＴにおいて、ネットワークは端末装置に対してＬｏｇｇｅｄ　ＭＤＴのための設定パラメータをＲＲＣメッセージの一つであるＬｏｇｇｅｄＭｅａｓｕｒｅｍｅｎｔＣｏｎｆｉｇｕｒａｔｉｏｎメッセージで転送する。この設定は、上書きによって置き換えられ、タイマーの条件に基づく停止や満了によって処分（クリアランス）されてよい。 MDT has a mode called Logged MDT and a mode called Immediate MDT. In the MDT, the network transfers the setting parameters for the Logged MDT to the terminal device by using the LoggedMeasurementConfiguration message which is one of the RRC messages. This setting may be replaced by overwriting and may be disposed (cleared) by stopping or expiring based on the condition of the timer.
　また、非特許文献１７では、ＭＤＴにおいて、端末装置がネットワークに報告するパラメータとして、以下のパラメータが規定されている。 Further, in Non-Patent Document 17, the following parameters are defined as parameters that the terminal device reports to the network in MDT.
　（１）下りリンクのパイロット強度測定のため、記録された測定（Ｌｏｇｇｅｄ　Ｍｅａｓｕｒｅｍｅｎｔ）レポートには、サービングセルの測定結果や、ＲＲＣ＿ＩＤＬＥで測定された、同一周波数や異周波数、あるいは異無線アクセス技術（Ｉｎｔｅｒ　ＲＡＴ）の利用できる（Ａｖａｉｌａｂｌｅな）測定結果や、時間の記録（Ｔｉｍｅ　Ｓｔａｍｐ）や、位置情報などが含まれてよい。例えば端末装置は変数ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔにこれらの情報を蓄積してよい。 (1) For downlink pilot strength measurement, the recorded measurement (Logged Measurement) report shows the measurement result of the serving cell, the same frequency or different frequency measured by RRC_IDLE, or different radio access technology (Inter RAT). ), Available (Available) measurement results, time recording (Time Stamp), location information, etc. may be included. For example, the terminal device may store these pieces of information in the variable VarLogMeasReport.
　（２）ＥＵＴＲＡのＭＢＳＦＮ（Ｍｕｌｔｉｍｅｄｉａ　Ｂｒｏａｄｃａｓｔ　Ｓｉｎｇｌｅ　Ｆｒｅｑｕｅｎｃｙ　ｎｅｔｗｏｒｋ）測定記録のため、記録された測定レポートには、ターゲットとなるＭＢＳＦＮエリアのＭＢＳＦＮ測定結果や、もし設定されていれば、利用できる下りリンクパイロット強度測定結果などが含まれてよい。例えば端末装置は変数ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔにこれらの情報を蓄積してよい。 (2) Due to the EUTRA MBSFN (Multimedia Broadcast Single Frequency network) measurement record, the recorded measurement report shows the MBSFN measurement result of the target MBSFN area and, if set, the available downlink pilot strength. The measurement result may be included. For example, the terminal device may store these pieces of information in the variable VarLogMeasReport.
　（３）ＷＬＡＮとＢｌｕｅＴｏｏｔｈ（登録商標）の測定記録のため、記録された測定レポートには、ＷＬＡＮおよび／またはＢｌｕｅＴｏｏｔｈの測定結果が含まれてよい。例えばＷＬＡＮの測定結果には、ＢＳＳＩＤとＳＳＩＤ、ＲＳＳＩ、ＲＴＴなどが含まれてよい。例えばＢｌｕｅＴｏｏｔｈの測定結果には、ＭＡＣアドレスやＲＳＳＩなどが含まれてよい。例えば端末装置は変数ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔにこれらの情報を蓄積してよい。 (3) Due to the measurement record of WLAN and BlueTooth (registered trademark), the recorded measurement report may include the measurement result of WLAN and / or BlueTooth. For example, the WLAN measurement result may include BSSID, SSID, RSSI, RTT, and the like. For example, the measurement result of BlueTooth may include a MAC address, RSSI, and the like. For example, the terminal device may store these pieces of information in the variable VarLogMeasReport.
　（４）無線リンク失敗レポートには、端末装置が最後に経験した接続失敗に関する情報が含まれてよい。接続失敗とは、無線リンク失敗（ＲＬＦ）や、ハンドオーバ失敗（ＨＯＦ）が含まれてよい。例えば端末装置は変数ＶａｒＲＬＦ－Ｒｅｐｏｒｔにこれらの情報を蓄積してよい。 (4) The wireless link failure report may include information regarding the connection failure that the terminal device last experienced. The connection failure may include a radio link failure (RLF) and a handover failure (HOF). For example, the terminal device may store this information in the variable VarRLF-Report.
　（５）失敗したＲＲＣ接続確立の記録のため、接続確立失敗レポートには、ＲＲＣ接続確立が失敗したときに選択された公衆携帯電話網（Ｐｕｂｌｉｃ　Ｌａｎｄ　Ｍｏｂｉｌｅ　Ｎｅｔｗｏｒｋ：ＰＬＭＮ）の情報などを蓄積してよい。例えば端末装置は変数ＶａｒＣｏｎｎＥｓｔＦａｉｌＲｅｐｏｒｔにこれらの情報を蓄積してよい。 (5) In order to record the failed RRC connection establishment, the connection establishment failure report stores information on the public mobile phone network (Public Land Mobile Network: PLMN) selected when the RRC connection establishment failed. Good. For example, the terminal device may store this information in the variable VarConnEstFailReport.
　（６）ＲＲＣ＿ＩＤＬＥの測定の記録のため、ＩＤＬＥ測定レポートが用意されてよい。例えば端末装置は変数ＶａｒＭｅａｓＩｄｌｅＲｅｐｏｒｔにＩＤＬＥ測定レポートの情報を蓄積してよい。 (6) An IDLE measurement report may be prepared for recording the RRC_IDLE measurement. For example, the terminal device may store the information of the IDLE measurement report in the variable VarMeasIdleReport.
　例えば、ネットワークは、複数の端末装置から集められた上記のレポートを統計的に用いることで、カバレッジホールの検出やセル境界の把握、および／または電波干渉状況の把握などをおこなうことができる。 For example, the network can statistically use the above reports collected from multiple terminal devices to detect coverage holes, grasp cell boundaries, and / or grasp radio interference conditions.
　図４および図７はそれぞれ本発明の実施の形態におけるＥＵＴＲＡとＮＲのＲＲＣ接続確立手順（プロシージャ）のフローの一例を示す図である。 FIG. 4 and FIG. 7 are diagrams each showing an example of the flow of the EURC and NR RRC connection establishment procedure (procedure) in the embodiment of the present invention.
　図４は、本発明の実施の形態におけるＥＵＴＲＡのＲＲＣ接続確立手順（プロシージャ）のフローの一例を示す図である。このプロシージャの目的は、ＲＲＣ接続を確立すること、サスペンドされたＲＲＣ接続をレジュームすること、ＵＥ１２２をＲＲＣインアクティブ状態（ＲＲＣ＿ＩＮＡＣＴＩＶＥ）からＲＲＣ接続状態（ＲＲＣ＿ＣＯＮＮＥＣＴＥＤ）に移すこと、または早期データ送信（Ｅａｒｌｙ　Ｄａｔａ　Ｔｒａｎｓｍｉｓｓｉｏｎ）を実行することであってよい。ＲＲＣ接続の確立はＳＲＢ１の確立を伴ってよい。このプロシージャは、初期ＮＡＳ個別情報（Ｉｎｉｔｉａｌ　ＮＡＳ　ｄｅｄｉｃａｔｅｄ　ｉｎｆｏｒｍａｔｉｏｎ）をＵＥ１２２からＥ－ＵＴＲＡＮへ転送するために用いられてもよい。 FIG. 4 is a diagram showing an example of a flow of EUTRA RRC connection establishment procedure in the embodiment of the present invention. The purpose of this procedure is to establish RRC connection, resume suspended RRC connection, move UE 122 from RRC inactive state (RRC_INACTIVE) to RRC connected state (RRC_CONNECTED), or send early data (Early Data). (Transmission). The establishment of RRC connection may be accompanied by the establishment of SRB1. This procedure may be used to transfer the initial NAS individual information (Initial NAS dedicated information) from the UE 122 to the E-UTRAN.
　ＲＲＣ接続を確立する場合であって、早期データ送信の開始でない場合、ＵＥ１２２はＲＲＣ接続要求（ＲＲＣＣｏｎｎｅｃｔｉｏｎＲｅｑｕｅｓｔ）メッセージの送信を開始してよい。また、ＲＲＣ接続を確立する場合であって、早期データ送信の開始である場合、ＵＥ１２２はＲＲＣ早期データ要求（ＲＲＣＥａｒｌｙＤａｔａＲｅｑｕｅｓｔ）メッセージの送信を開始してよい。また、ＲＲＣ接続をレジュームする場合、ＵＥ１２２はＲＲＣ接続レジューム要求（ＲＲＣＣｏｎｎｅｃｔｉｏｎＲｅｓｕｍｅＲｅｑｕｅｓｔ）メッセージの送信を開始してよい（ステップＳ４０１）。 If the RRC connection is established and the early data transmission is not started, the UE 122 may start transmitting the RRC connection request (RRCConnectionRequest) message. In addition, when establishing an RRC connection and starting early data transmission, the UE 122 may start transmitting an RRC Early Data Request message. When resuming the RRC connection, the UE 122 may start transmitting an RRC connection resume request message (RRCConnectionResumeRequest) message (step S401).
　ＲＲＣ接続要求メッセージの送信に関する処理（アクション）について説明する。 Explain the process (action) related to the transmission of RRC connection request message.
　ＵＥ１２２は、ＲＲＣレイヤの上位のレイヤから、位置登録時にネットワークから払い出されるＵＥ識別子（ＳＡＥ　Ｔｅｍｐｏｒａｒｙ　Ｍｏｂｉｌｅ　Ｓｕｂｓｃｒｉｂｅｒ　Ｉｄｅｎｔｉｔｙ：Ｓ－ＴＭＳＩ）が提供される場合、上位レイヤから受け取った値をＵＥ識別子（ｕｅ－Ｉｄｅｎｔｉｔｙ）にセットする。もし、上位レイヤから５Ｇ－Ｓ－ＴＭＳＩが提供される場合、ＵＥ識別子に上位レイヤから受け取った値の一部をＵＥ識別子にセットする。いずれの情報も提供されない場合、ＵＥ識別子にランダムな値をセットする。 When a UE identifier (SAE Temporary Mobile Subscriber Identity: S-TMSI) issued from the network at the time of location registration is provided from a layer above the RRC layer, the UE 122 uses the value received from the upper layer as the UE identifier (ue-Identity). ). If 5G-S-TMSI is provided from the upper layer, the UE identifier is set to a part of the value received from the upper layer. If neither information is provided, set a random value for the UE identifier.
　ＵＥ１２２がＥＰＣに接続する場合、（Ａ）もし、ＵＥ１２２が確立理由（Ｅｓｔａｂｌｉｓｈｍｅｎｔ　Ｃａｕｓｅ）のひとつであるｍｏ－ＶｏｉｃｅＣａｌｌをサポートし、ＵＥ１２２がマルチメディア無線電話（Ｍｕｌｔｉｍｅｄｉａ　Ｔｅｌｅｐｈｏｎｙ：ＭＭＴＥＬ）音声の発呼（Ｍｏｂｉｌｅ　Ｏｒｉｇｉｎａｔｉｎｇ　ＭＭＴＥＬ　Ｖｏｉｃｅ）のためにＲＲＣ接続の確立をおこなっており、基地局装置から報知されるシステム情報の一部であるシステム情報ブロックタイプ２（ＳｙｓｔｅｍＩｎｆｏｒｍａｔｉｏｎＢｌｏｃｋＴｙｐｅ２）がｖｏｉｃｅＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎを含み、上位レイヤから受け取った確立理由が高優先アクセス（ｈｉｇｈＰｒｉｏｒｉｔｙＡｃｃｅｓｓ）でなければ、ＲＲＣ接続要求メッセージに含まれるフィールドの一つであるｅｓｔａｂｌｉｓｈｍｅｎｔＣａｕｓｅの値にｍｏ－ＶｏｉｃｅＣａｌｌをセットする。なお、上記ｖｏｉｃｅＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎは、ＵＥ１２２がＭＭＴＥＬ音声の発呼の際に確立理由としてｍｏ－ＶｏｉｃｅＣａｌｌを用いることが要求されているかを示す情報である。 When the UE 122 connects to the EPC, (A) if the UE 122 supports mo-Voice Call, which is one of the reasons for establishment (Essbashment Cause), and the UE 122 makes a call to the multimedia wireless telephone (Multimedia: MMTEL) voice (Mobile). The reason why the RRC connection is established for Originating MMTEL Voice, and the system information block type 2 (SystemInformationBlockType2) that is part of the system information notified from the base station device includes voiceServiceCauseIndication and is received from the upper layer. Is not high priority access (highPriorityAccess), Sets the mo-VoiceCall the value of which is one establishmentCause the fields in the RC connection request message. The voiceServiceCauseIndication is information indicating whether the UE 122 is required to use the mo-VoiceCall as the establishment reason when calling the MMTEL voice.
　（Ａ）でない場合、（Ｂ）もし、ＵＥ１２２が確立理由（Ｅｓｔａｂｌｉｓｈｍｅｎｔ　Ｃａｕｓｅ）のひとつであるＭＭＴＥＬビデオの発呼（Ｍｏｂｉｌｅ　Ｏｒｉｇｉｎａｔｉｎｇ　ＭＭＴＥＬ　Ｖｉｄｅｏ）のためのｍｏ－ＶｏｉｃｅＣａｌｌをサポートし、ＵＥ１２２がＭＭＴＥＬビデオの発呼のためにＲＲＣ接続の確立をおこなっており、基地局装置から報知されるシステム情報ブロックタイプ２（ＳｙｓｔｅｍＩｎｆｏｒｍａｔｉｏｎＢｌｏｃｋＴｙｐｅ２）がｖｉｄｅｏＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎを含み、上位レイヤから受け取った確立理由が高優先アクセス（ｈｉｇｈＰｒｉｏｒｉｔｙＡｃｃｅｓｓ）でなければ、ＲＲＣ接続要求メッセージに含まれるフィールドの一つであるｅｓｔａｂｌｉｓｈｍｅｎｔＣａｕｓｅの値にｍｏ－ＶｏｉｃｅＣａｌｌをセットする。なお、上記ｖｉｄｅｏＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎは、ＵＥ１２２がＭＭＴＥＬビデオの発呼の際に確立理由としてｍｏ－ＶｏｉｃｅＣａｌｌを用いることが要求されているかを示す情報である。 If not (A), (B) if the UE 122 supports mo-Voice Call for calling MMTEL video (Mobile Originating MMTEL Video), which is one of the reasons for establishment (Esblishment Cause), and UE 122 sends MMTEL video. If an RRC connection is established for a call, and the system information block type 2 (SystemInformationBlockType2) notified from the base station device includes videoServiceCauseIndication, and the establishment reason received from the upper layer is high priority access (highPriorityAccess). , One of the fields included in the RRC connection request message To set the mo-VoiceCall to the value of ntCause. The videoServiceCauseIndication is information indicating whether the UE 122 is required to use the mo-VoiceCall as the establishment reason when calling the MMTEL video.
　（Ａ）でも（Ｂ）でもない場合、ＵＥ１２２は、ＲＲＣ接続要求メッセージに含まれるフィールドの一つであるｅｓｔａｂｌｉｓｈｍｅｎｔＣａｕｓｅに、上位レイヤから受け取った情報に従って値をセットする。 If neither (A) nor (B), the UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC connection request message, according to the information received from the upper layer.
　ＵＥ１２２が５ＧＣに接続する場合、ＵＥ１２２は、ＲＲＣ接続要求メッセージに含まれるフィールドの一つであるｅｓｔａｂｌｉｓｈｍｅｎｔＣａｕｓｅに、上位レイヤから受け取った情報に従って値をセットする。 When the UE 122 connects to 5GC, the UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC connection request message, according to the information received from the upper layer.
　上記処理の後、ＵＥ１２２は、ＲＲＣ接続要求メッセージを送信のために下位レイヤに提出（Ｓｕｂｍｉｔ）する（ステップＳ４０１）。 After the above processing, the UE 122 submits (Submit) the RRC connection request message to the lower layer for transmission (step S401).
　ＲＲＣ接続レジューム要求メッセージの送信に関する処理（アクション）について説明する。 Explain the process (action) related to the transmission of the RRC connection resume request message.
　ＵＥ１２２はサスペンドされたＲＲＣ接続からＲＲＣ接続をレジュームする場合に以下の処理を行う。 UE 122 performs the following processing when resuming the RRC connection from the suspended RRC connection.
　ＵＥ１２２は、（Ａ）早期データ送信を開始しているか、システム情報ブロックタイプ２にｕｓｅＦｕｌｌＲｅｓｕｍｅＩＤが含まれているなら、ストアしているレジュームのための識別子であるｒｅｓｕｍｅＩｄｅｎｔｉｔｙをＲＲＣ接続レジューム要求メッセージのフィールドの一つであるｒｅｓｕｍｅＩＤにセットする。なお、フィールドにセットするとは、フィールドの値に設定すると換言してもよい。 If the system information block type 2 includes (use) FullResumeID in (A) early data transmission, the UE 122 sets the resumeIdentity, which is the identifier for the stored resume, in the field of the RRC connection resume request message. Set to one resumeID. It should be noted that setting to the field may be rephrased to setting to the value of the field.
　（Ａ）でない場合、ストアしているｒｅｓｕｍｅＩｄｅｎｔｉｔｙの一部（左から９ビット目から２０ビット目と、２９ビット目から４０ビット目）を含むように、ＲＲＣ接続レジューム要求メッセージのフィールドの一つであるｔｒｕｎｃａｔｅｄＲｅｓｕｍｅＩＤにセットする。 If it is not (A), it is one of the fields of the RRC connection resume request message so as to include a part (9th to 20th bits and 29th to 40th bits from the left) of the stored resumeIdentity. Set to a certain truncatedResumeID.
　上記処理の後、（Ｂ）もし、ＵＥ１２２が確立理由（Ｅｓｔａｂｌｉｓｈｍｅｎｔ　Ｃａｕｓｅ）のひとつであるｍｏ－ＶｏｉｃｅＣａｌｌをサポートし、ＵＥ１２２がＭＭＴＥＬ音声の発呼（Ｍｏｂｉｌｅ　Ｏｒｉｇｉｎａｔｉｎｇ　ＭＭＴＥＬ　Ｖｏｉｃｅ）のためにＲＲＣ接続のレジュームをおこなっており、システム情報ブロックタイプ２（ＳｙｓｔｅｍＩｎｆｏｒｍａｔｉｏｎＢｌｏｃｋＴｙｐｅ２）がｖｏｉｃｅＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎを含み、上位レイヤから受け取った確立理由が高優先アクセス（ｈｉｇｈＰｒｉｏｒｉｔｙＡｃｃｅｓｓ）でなければ、ＲＲＣ接続レジューム要求メッセージに含まれるフィールドの一つであるｒｅｓｕｍｅＣａｕｓｅの値にｍｏ－ＶｏｉｃｅＣａｌｌをセットする。 After the above processing, (B) if the UE 122 supports mo-Voice Call, which is one of the establishment reasons (Essbaution Cause), and the UE 122 resumes the RRC connection for calling MMTEL voice (Mobile Originating MMTEL Voice). If the system information block type 2 (SystemInformationBlockType2) includes voiceServiceCauseIndication and the establishment reason received from the upper layer is not high priority access (highPriorityAccess), it is one of the fields Cause included in the RRC connection resume request message. Set mo-VoiceCall to the value of
　（Ｂ）でない場合、（Ｃ）もし、ＵＥ１２２が確立理由（Ｅｓｔａｂｌｉｓｈｍｅｎｔ　Ｃａｕｓｅ）のひとつであるＭＭＴＥＬビデオの発呼（Ｍｏｂｉｌｅ　Ｏｒｉｇｉｎａｔｉｎｇ　ＭＭＴＥＬ　Ｖｉｄｅｏ）のためのｍｏ－ＶｏｉｃｅＣａｌｌをサポートし、ＵＥ１２２がＭＭＴＥＬビデオの発呼のためにＲＲＣ接続のレジュームをおこなっており、システム情報ブロックタイプ２（ＳｙｓｔｅｍＩｎｆｏｒｍａｔｉｏｎＢｌｏｃｋＴｙｐｅ２）がｖｉｄｅｏＳｅｒｖｉｃｅＣａｕｓｅＩｎｄｉｃａｔｉｏｎを含み、上位レイヤから受け取った確立理由が高優先アクセス（ｈｉｇｈＰｒｉｏｒｉｔｙＡｃｃｅｓｓ）でなければ、ＲＲＣ接続レジューム要求メッセージに含まれるフィールドの一つであるｒｅｓｕｍｅＣａｕｓｅの値にｍｏ－ＶｏｉｃｅＣａｌｌをセットする。 If not (B), (C) if the UE 122 supports mo-Voice Call for calling MMTEL video (Mobile Originating MMTEL Video), which is one of the reasons for establishment (Estability Cause), and UE 122 sends MMTEL video. If the RRC connection is resumed for a call, the system information block type 2 (SystemInformationBlockType2) includes videoServiceCauseIndication, and if the establishment reason received from the upper layer is not high priority access (highPriorityAccess), the RRC connection resume request message is sent. In the value of resumeCause, which is one of the included fields To set the o-VoiceCall.
　（Ｂ）でも（Ｃ）でもない場合、ＵＥ１２２は、ＲＲＣ接続レジューム要求メッセージに含まれるフィールドの一つであるｒｅｓｕｍｅＣａｕｓｅに、上位レイヤから受け取った情報に従って値をセットする。 If neither (B) nor (C), the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC connection resume request message, according to the information received from the upper layer.
　上記処理の後、ＲＲＣ設定を回復（リストア）し、すべてのシグナリング無線ベアラ（ＳＲＢ）とすべてのデータ無線ベアラ（ＤＲＢ）のためのＰＤＣＰエンティティを再確立（Ｒｅ－ｅｓｔａｂｌｉｓｈ）する。 After the above process, the RRC settings are restored (restored), and PDCP entities for all signaling radio bearers (SRB) and all data radio bearers (DRB) are re-established.
　上記処理の後、ＵＥ１２２は、ＲＲＣ接続レジューム要求メッセージを送信のために下位レイヤに提出（Ｓｕｂｍｉｔ）する（ステップＳ４０１）。 After the above processing, the UE 122 submits an RRC connection resume request message to the lower layer for transmission (Submit) (step S401).
　ＵＥ１２２は、ＲＲＣ＿ＩＮＡＣＴＩＶＥからＲＲＣ接続をレジュームする場合に以下の処理を行う。 UE 122 performs the following processing when resuming the RRC connection from RRC_INACTIVE.
　ＵＥ１２２は、（Ａ）システム情報ブロックタイプ２にｕｓｅＦｕｌｌＲｅｓｕｍｅＩＤが含まれているなら、サスペンドで提供され蓄積（保持）していたｆｕｌｌＩ－ＲＮＴＩをＲＲＣ接続レジューム要求メッセージのフィールドの一つであるｆｕｌｌＩ－ＲＮＴＩにセットする。 If the (A) system information block type 2 includes the useFullResumeID, the UE 122 stores the fullI-RNTI provided and stored (held) in the suspend mode as the fullI-RNTI which is one of the fields of the RRC connection resume request message. Set to.
　（Ａ）でない場合、サスペンドで提供され蓄積（保持）していたｓｈｏｒｔＩ－ＲＮＴＩをＲＲＣ接続レジューム要求メッセージのフィールドの一つであるｓｈｏｒｔＩ－ＲＮＴＩにセットする。 If it is not (A), the shortI-RNTI provided and stored (held) by suspend is set in the shortI-RNTI which is one of the fields of the RRC connection resume request message.
　上記処理の後、ＵＥ１２２は、ＲＲＣ接続レジューム要求メッセージに含まれるフィールドの一つであるｒｅｓｕｍｅＣａｕｓｅに、上位レイヤあるいはＡＳ（Ａｃｃｅｓｓ　Ｓｔｒａｒｕｍ）レイヤから受け取った情報に従って値をセットする。 After the above processing, the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC connection resume request message, according to the information received from the upper layer or the AS (Access Stratum) layer.
　上記処理の後、ＵＥ１２２は、ＲＲＣ接続レジューム要求メッセージを送信のために下位レイヤに提出（Ｓｕｂｍｉｔ）する（ステップＳ４０１）。 After the above processing, the UE 122 submits an RRC connection resume request message to the lower layer for transmission (Submit) (step S401).
　ＵＥ１２２がＲＲＣ接続セットアップメッセージを受信（ステップＳ４０３）したときのプロシージャ（アクション）について説明する。 The procedure (action) when the UE 122 receives the RRC connection setup message (step S403) will be described.
　（Ａ）もし、ＲＲＣ接続セットアップメッセージを、サスペンドされたＲＲＣ接続からのＲＲＣ接続レジューム要求メッセージの返信として受け取ったなら、以下の（１）から（５）の処理を行う。 (A) If the RRC connection setup message is received as a reply to the RRC connection resume request message from the suspended RRC connection, the following processes (1) to (5) are performed.
　（１）すべての無線リソース（ＳＲＢ０以外のすべての確立された、あるいはサスペンドされたＲＢに対する、ＲＬＣエンティティ、ＭＡＣコンフィグレーション、およびＰＤＣＰエンティティを含む）を解放（リリース）する。 (1) Release (release) all radio resources (including RLC entity, MAC configuration, and PDCP entity for all established or suspended RBs other than SRB0).
　（２）蓄積（保持）していたＡＳコンテキストとｒｅｓｕｍｅＩｄｅｎｔｉｔｙを捨てる（Ｄｉｓｃａｒｄする）。 (2) Discard (discard) the AS context and resumeIdentity that were accumulated (held).
　（３）もし蓄積（保持）していたら、ｎｅｘｔＨｏｐＣｈａｉｎｉｎｇＣｏｕｎｔを捨てる（Ｄｉｓｃａｒｄする）。 (3) If it is accumulating (holding), discard (discard) nextHopChainingCount.
　（４）もし蓄積（保持）していたら、ｄｒｂ－ＣｏｎｔｉｎｕｅＲＯＨＣを捨てる（Ｄｉｓｃａｒｄする）。 (4) If accumulated (held), discard (discard) drb-ContinueROHC.
　（５）上位レイヤにＲＲＣ接続のフォールバックを通知する。 (5) Notify the upper layer of fallback of RRC connection.
　（Ａ）でない場合、もし、ＲＲＣ接続セットアップメッセージを、ＲＲＣ＿ＩＮＡＣＴＩＶＥからのＲＲＣ接続レジューム要求メッセージの返信として受け取ったなら、以下の（１）から（３）の処理を行う。 If it is not (A), if the RRC connection setup message is received as a reply to the RRC connection resume request message from RRC_INACTIVE, the following processes (1) to (3) are performed.
　（１）もし変数ｐｅｎｄｉｎｇＲｎａＵｐｄａｔｅの値が真（ＴＲＵＥ）にセットされていたら、値を偽（ＦＡＬＳＥ）にセットする。 (1) If the value of the variable pendingRnaUpdate is set to true (TRUE), set the value to false (FALSE).
　（２）蓄積（保持）していたＡＳコンテキストとｆｕｌｌＩ－ＲＮＴＩとｓｈｏｒｔＩ－ＲＮＴＩを捨てる（Ｄｉｓｃａｒｄする）。 (2) Discard (discard) the AS context and the fullI-RNTI and the shortI-RNTI that have been accumulated (held).
　（３）上位レイヤにＲＲＣ接続のフォールバックを通知する。 (3) Notify the upper layer of fallback of RRC connection.
　上記処理の後、ＲＲＣ接続セットアップメッセージに含まれる個別無線リソース設定（ｒａｄｉｏＲｅｓｏｕｒｃｅＣｏｎｆｉｇＤｅｄｉｃａｔｅｄ）の情報に基づいて無線リソースの設定をおこなう。 After the above process, the wireless resource is set based on the information of the individual wireless resource setting (radioResourceConfigDedicated) included in the RRC connection setup message.
　上記処理の後、種々のタイマーを停止し、ＲＲＣ接続状態（ＲＲＣ＿ＣＯＮＮＥＣＴＥＤ）に遷移する。 After the above processing, stop various timers and transit to RRC connection state (RRC_CONNECTED).
　上記処理の後、図８に示すように、以下の（１）から（３）に示すようにＲＲＣ接続セットアップ完了メッセージのコンテンツをセットする。 After the above processing, as shown in FIG. 8, the contents of the RRC connection setup completion message are set as shown in (1) to (3) below.
　（１）メッセージのコンテンツにｍｏｂｉｌｉｔｙＳｔａｔｅを含め、ｍｏｂｉｌｉｔｙＳｔａｔｅの値として、移動状態を設定する（ステップＳ８０１）。 (1) Include the mobilityState in the content of the message, and set the moving state as the value of the mobilityState (step S801).
　（２）もし、ＵＥ１２２が移動履歴情報の蓄積をサポートしており、ＵＥ１２２の変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに移動履歴情報が存在する（利用できる（Ａｖａｉｌａｂｌｅ））なら、メッセージのコンテンツにｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＡｖａｉｌを含め、ｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＡｖａｉｌの値として、真（ｔｒｕｅ）を設定する（ステップＳ８０３）。 (2) If the UE 122 supports the accumulation of the movement history information and the movement history information is present in the variable VarMobilityHistoryReport of the UE 122 (available (Available)), the content of the message includes the mobilityHistoryAvail value as the mobilityHistoryAvail. , True is set (step S803).
　（３）ＵＥ１２２がＥＰＣに接続する場合、以下の（Ａ）から（Ｇ）に示すようにＲＲＣ接続セットアップ完了メッセージのコンテンツをセットする（ステップＳ８０５、ステップＳ８０７）。 (3) When the UE 122 connects to the EPC, the content of the RRC connection setup completion message is set as shown in (A) to (G) below (steps S805 and S807).
　（Ａ）もしＵＥ１２２が変数ＶａｒＲＬＦ－Ｒｅｐｏｒｔに無線リンク失敗またはハンドオーバ失敗の情報が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＲＬＦ－Ｒｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリスト（ｐｌｍｎ－ＩｄｅｎｔｉｔｙＬｉｓｔ）にＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｒｌｆ－ＩｎｆｏＡｖａｉｌａｂｌｅを含め、ｒｌｆ－ＩｎｆｏＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (A) If the UE 122 has the information of the radio link failure or the handover failure in the variable VarRLF-Report (Available), and the list of PLMN identifiers (plmn-IdentityList) stored in the VarRLF-Report includes RPLMN, Include rlf-InfoAvailable in the content of the message, and set the value of rlf-InfoAvailable to true.
　（Ｂ）もしＵＥ１２２がＥＵＴＲＡに対するＭＢＳＦＮの記録された測定（ＭＢＳＦＮｌｏｇｇｅｄ ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮの値として、真（ｔｒｕｅ）を設定する。 (B) If the UE 122 has recorded (MBSFNlogged measurements) of MBSFN for EUTRA (Available) and RPLMN is included in the list of PLMN identifiers stored in VarLogMeasReport, then logSFabaleMBAleAMBA is included in the content of the message. True is set as the value of logMeasAvailableMBSFN.
　（Ｃ）もしＵＥ１２２がＥＵＴＲＡに対するＭＢＳＦＮの記録された測定（ＭＢＳＦＮ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮの値として、真（ｔｒｕｅ）を設定する。そうでない場合、もしＵＥ１２２がＥＵＴＲＡに対する記録された測定（ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (C) If the UE 122 has MBSFN recorded measurements (Available) for MBSFN for EUTRA and the RPLMN is included in the list of PLMN identifiers stored in VarLogMeasReport, the logContentAvLeaMSA will be included in the message content. , LogMeasAvailableMBSFN is set to true. Otherwise, if the UE 122 has recorded measurements for EUTRA (Available) and the list of PLMN identifiers accumulated in VarLogMeasReport contains RPLMN, the message content includes logMeasableAvailable. Is set to true.
　（Ｄ）もしＵＥ１２２がＢｌｕｅｔｏｏｔｈの記録された測定（Ｂｌｕｅｔｏｏｔｈ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＢＴを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＢＴの値として、真（ｔｒｕｅ）を設定する。 (D) If the UE 122 has Bluetooth recorded measurements (Available), and the list of PLMN identifiers accumulated in VarLogMeasReport includes RPLMN, vBealogAlogAbeAlogA, and contentLogBealogAlogABealogA, where the content of the PLMN contained in VarLogMeasReport includes logMalalogAlogAbaleAbe, and logMealBaleABealogA, which contains the content of the message. Is set to true.
　（Ｅ）もしＵＥ１２２がＷＬＡＮの記録された測定（ＷＬＡＮ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＷＬＡＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＷＬＡＮの値として、真（ｔｒｕｅ）を設定する。 (E) If the UE 122 has a recorded measurement (WLAN logged measurements) of the WLAN (Available) and the list of PLMN identifiers accumulated in the VarLogMeasReport includes RPLMN, the message content includes logMeasableAvailableLAN, WLANMavailable WLAN. Is set to true.
　（Ｆ）もしＵＥ１２２が変数ＶａｒＣｏｎｎＥｓｔＦａｉｌＲｅｐｏｒｔに接続確立失敗情報（ｃｏｎｎｅｃｔｉｏｎ　ｅｓｔａｂｌｉｓｈｍｅｎｔ　ｆａｉｌｕｒｅ　ｉｎｆｏｒｍａｔｉｏｎ）が存在（Ａｖａｉｌａｂｌｅ）し、ＲＰＬＭＮがＶａｒＣｏｎｎＥｓｔＦａｉｌＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子と等しければ、メッセージのコンテンツにｃｏｎｎＥｓｔＦａｉｌＩｎｆｏＡｖａｉｌａｂｌｅを含め、ｃｏｎｎＥｓｔＦａｉｌＩｎｆｏＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (F) If the UE 122 has connection establishment failure information (available) in the variable VarConnEstFailReport, the connection establishment failure information (connection establishmentfailureinfo) is included in the VarConnEstFailReport, and the content of the RPLMN is stored in the VarConnEstFailReportEfalEnaFalInfalFaInEfalIn message, and the content of the RPLMN is stored in the VarConnFailReportEfalEinFoalEfalEin message. As a value, true is set.
　（Ｇ）もしシステム情報ブロックタイプ２がｉｄｌｅＭｏｄｅＭｅａｓｕｒｅｍｅｎｔｓを含み、ＵＥ１２２の変数ＶａｒＭｅａｓＩｄｌｅＲｅｐｏｒｔにＲＲＣ＿ＩＤＬＥ状態における測定情報（ＩＤＬＥ　ｍｏｄｅ　ｍｅａｓｕｒｅｍｅｎｔ　ｉｎｆｏｒｍａｔｉｏｎ）が存在（Ａｖａｉｌａｂｌｅ）すれば、メッセージのコンテンツにｉｄｌｅＭｅａｓＡｖａｉｌａｂｌｅを含め、ｉｄｌｅＭｅａｓＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (G) If the system information block type 2 includes idleModeMeasurements, and the variable VarMeasIdleReport of the UE 122 includes the measurement information (IDLE mode measurement informational) in the RRC_IDLE status informationAvale as the value of A, the content of the message contains the value AID in the content of the message. , True (true).
　上記処理の後、送信のために下位レイヤにＲＲＣ接続セットアップ完了メッセージを提出する（ステップＳ４０５）。 After the above processing, the RRC connection setup completion message is submitted to the lower layer for transmission (step S405).
　上記（３）の処理において、図９のステップＳ９０５、ステップＳ９０７に示すように、ＵＥ１２２がＥＰＣに接続する場合だけではなく、システム情報ブロック２あるいはその他のシステム情報ブロックに処理の実行を指示する情報（例えば値にＴＲＵＥを持つｅｎａｂｌｅＭＤＴフィールド）が含まれる場合、あるいは特定のフィールド（例えばｅｎａｂｌｅＭＤＴフィールド）が存在している場合に（Ａ）から（Ｇ）の処理を行うようにしてもよい。例えば、特定のリリース（リリースＡ）のＵＥ１２２はこのフィールドを認識せず、別のリリース（リリースＢ）のＵＥ１２２はこのフィールドを認識する場合、リリースＡのＵＥ１２２は、ＵＥ１２２がＥＰＣに接続する場合だけ（Ａ）から（Ｇ）の処理をおこない、リリースＢのＵＥ１２２は、ＵＥ１２２がＥＰＣに接続しない場合（例えば５ＧＣに接続する場合）であっても、ｅｎａｂｌｅＭＤＴフィールドが含まれる場合に（Ａ）から（Ｇ）の処理を行わせることが可能となる。この情報は、ＲＲＣ接続をレジュームする場合に、ＲＲＣ接続レジューム完了（ＲＲＣＣｏｎｎｅｃｔｉｏｎＲｅｓｕｍｅＣｏｍｐｌｅｔｅ）メッセージに含めるコンテンツをセットする際であって、ＲＲＣ接続完了メッセージと同様に（１）から（３）に基づきコンテンツがセットされる場合に用いられてもよい。 In the above process (3), as shown in step S905 and step S907 of FIG. 9, not only when the UE 122 connects to the EPC, but also information instructing the system information block 2 or another system information block to execute the process. The processing from (A) to (G) may be performed when (for example, an enableMDT field having TRUE as a value) is included or when a specific field (for example, an enableMDT field) is present. For example, if a particular release (Release A) UE 122 does not recognize this field and another release (Release B) UE 122 recognizes this field, then the Release A UE 122 will only be able to connect when the UE 122 connects to the EPC. The processing from (A) to (G) is performed, and the UE 122 of Release B performs (A) ((A)) when the enableMDT field is included even when the UE 122 does not connect to the EPC (for example, when connecting to 5GC). It becomes possible to perform the processing of G). This information is used when setting the content to be included in the RRC Connection Resume Complete message when the RRC connection is resumed. Like the RRC connection completion message, the content is set based on (1) to (3). May be used when
　以下のＥＵＴＲＡの各プロシージャおよびフィールドの説明において、「ＥＵＴＲＡセル」は、「ＥＵＴＲＡセルとＮＲセル」と置き換えられてもよい。また、ＥＵＴＲＡだけでなく、ＮＲにおいても同様の（類似の）手順が用いられてよい。ＮＲに適用する場合、ＥＵＴＲＡは適宜ＮＲと置き換えられてもよい。 In the following description of each EUTRA procedure and field, “EUTRA cell” may be replaced with “EUTRA cell and NR cell”. Also, a similar (similar) procedure may be used not only in EUTRA but also in NR. When applied to NR, EUTRA may be replaced with NR as appropriate.
　ｍｏｂｉｌｉｔｙＳｔａｔｅについて説明する。もし、システム情報でＴ＿ＣＲｍａｘ、Ｎ＿ＣＲ＿Ｈ、Ｎ＿ＣＲ＿Ｍ、などのパラメータが報知されている場合、Ｎｏｒｍａｌ－ｍｏｂｉｌｉｔｙ状態、Ｈｉｇｈ－ｍｏｂｉｌｉｔｙ状態、およびＭｅｄｉｕｍ－ｍｏｂｉｌｉｔｙ状態が利用可能である。Ｍｅｄｉｕｍ－ｍｏｂｉｌｉｔｙ状態とは、Ｔ＿ＣＲｍａｘ期間のセル再選択の回数がＮ＿ＣＲ＿Ｍを超え、Ｎ＿ＣＲ＿Ｈを超えない状態である。Ｈｉｇｈ－ｍｏｂｉｌｉｔｙ状態とは、Ｔ＿ＣＲｍａｘ期間のセル再選択の回数がＮ＿ＣＲ＿Ｈを超える状態である。それ以外の状態が一定期間続いた場合、Ｎｏｒｍａｌ－ｍｏｂｉｌｉｔｙ状態となる。このとき同じ２つのセル間での連続した再選択はカウントしなくてよい。ｍｏｂｉｌｉｔｙＳｔａｔｅは、Ｍｅｄｉｕｍ－ｍｏｂｉｌｉｔｙ状態と、Ｈｉｇｈ－ｍｏｂｉｌｉｔｙ状態であることを通知するために値としてそれぞれｍｅｄｉｕｍとｈｉｇｈを用いてよい。Ｎｏｒｍａｌ－ｍｏｂｉｌｉｔｙ状態および／またはそれ以外の場合に、値としてｎｏｒｍａｌを用いてよい。 Explain mobilityState. If parameters such as T_CRmax, N_CR_H, and N_CR_M are reported in the system information, Normal-mobility state, High-mobility state, and Medium-mobility state can be used. The medium-mobility state is a state in which the number of cell reselections during the T_CRmax period exceeds N_CR_M and does not exceed N_CR_H. The High-mobility state is a state in which the number of cell reselections during the T_CRmax period exceeds N_CR_H. If the other states continue for a certain period of time, the normal-mobility state is set. At this time, continuous reselection between the same two cells does not have to be counted. The mobilityState may use medium and high as values to notify the medium-mobility state and the high-mobility state, respectively. Normal may be used as the value in the Normal-mobility state and / or otherwise.
　ＵＥ１２２が移動履歴情報をストアするプロシージャについて説明する。このプロシージャはＲＲＣ＿ＣＯＮＮＥＣＴＥＤとＲＲＣ＿ＩＤＬＥをカバーし、ＵＥ１２２によってどのように移動履歴情報が蓄積（ストア）されるかを規定する。また、このプロシージャは、ＲＲＣ＿ＩＮＡＣＴＩＶＥをカバーしてもよい。 A procedure for the UE 122 to store movement history information will be described. This procedure covers RRC_CONNECTED and RRC_IDLE and defines how movement history information is stored by the UE 122. This procedure may also cover RRC_INACTIVE.
　もしＵＥ１２２が移動履歴情報の蓄積をサポートするなら、ＵＥ１２２は、以下の手順を行う。 If the UE 122 supports movement history information storage, the UE 122 performs the following procedure.
　手順１：ＲＲＣ＿ＣＯＮＮＥＣＴＥＤにおけるサービングセルの一つであるＰＣｅｌｌや、ＲＲＣ＿ＩＤＬＥにおけるサービングセルから他のＥＵＴＲＡセルまたは他のＲＡＴのセルまたは圏外（Ｏｕｔ　ｏｆ　ｓｅｒｖｉｃｅ）に変わった場合、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに後述するエントリー（ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏ）のリスト（ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏＬｉｓｔ）を含める。このとき、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔの蓄積可能な最大エントリー数に基づき最も古いエントリーを削除してからエントリーを含めてもよい。ＵＥ１２２は、前のＰＣｅｌｌあるいはサービングセルのセルグローバル識別子が存在する（Ａｖａｉｌａｂｌｅである）場合、エントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄにそのセルのセルグローバル識別子を含める。ＵＥ１２２は、前のＰＣｅｌｌあるいはサービングセルのセルグローバル識別子が存在しない（Ａｖａｉｌａｂｌｅでない）場合、エントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄにそのセルの物理セル識別子とキャリア周波数の情報を含める。そして何れの場合であってもＵＥ１２２は、エントリーのフィールドの一つであるｔｉｍｅＳｐｅｎｔにそのＰＣｅｌｌまたはサービングセルで費やした時間の情報を含める。なお、時間の情報が、ｔｉｍｅＳｐｅｎｔで示すことのできる最大の時間を超える場合には、ｔｉｍｅＳｐｅｎｔで示すことのできる最大の時間を設定する。上記エントリーが変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに含められる。ここで、セルグローバル識別子は、そのネットワークにおいて、そのセルを世界的に一意に識別できる識別子であり、ＥＵＴＲＡにおいては、ＰＬＭＮ識別子と物理セル識別子の組み合わせで表される。ＮＲにおいても、セルグローバル識別子は、そのネットワークにおいて、そのセルを世界的に一意に識別できる識別子であることに変わりなく、ＥＵＴＲＡと同様、ＰＬＭＮ識別子と物理セル識別子の組み合わせで表されてもよい。ここで、ＰＬＭＮ識別子はＰＬＭＮ（Ｐｕｂｌｉｃ　Ｌａｎｄ　Ｍｏｂｉｌｅ　Ｎｅｔｗｏｒｋ）を識別する識別子であり、報知情報（システム情報）によってＵＥ１２２に報知されてよい。 Step 1: When the PCell, which is one of the serving cells in RRC_CONNECTED, or the serving cell in RRC_IDLE is changed to another EUTRA cell or another RAT cell or out of service (Out of service), the UE 122 makes an entry described later in a variable VarMobilityHistoryReport ( Include a list of VisitedCellInfo (VisitedCellInfoList). At this time, the UE 122 may delete the oldest entry based on the maximum storable number of entries of the variable VarMobilityHistoryReport and then include the entry. When the cell global identifier of the previous PCell or serving cell exists (is available), the UE 122 includes the cell global identifier of that cell in the visitedCellId, which is one of the fields of the entry. When the cell global identifier of the previous PCell or serving cell does not exist (not available), the UE 122 includes the physical cell identifier of the cell and the carrier frequency information in the visitedCellId, which is one of the fields of the entry. In any case, the UE 122 includes information on the time spent in the PCell or the serving cell in the timeSent, which is one of the fields of the entry. When the time information exceeds the maximum time that can be indicated by timeSpent, the maximum time that can be indicated by timeSpent is set. The above entry is included in the variable VarMobilityHistoryReport. Here, the cell global identifier is an identifier that can uniquely identify the cell globally in the network, and is represented by a combination of the PLMN identifier and the physical cell identifier in EUTRA. Also in NR, the cell global identifier is an identifier that can uniquely identify the cell globally in the network, and may be represented by a combination of the PLMN identifier and the physical cell identifier as in EUTRA. Here, the PLMN identifier is an identifier for identifying PLMN (Public Land Mobile Network), and may be notified to the UE 122 by notification information (system information).
　ここで、ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏＬｉｓｔは、例えば、最大１６個の、もっとも最近訪れたセルまたはＥＵＴＲＡの外で費やした時間の情報を含んでよい。もっとも最近訪れたセルまたはＥＵＴＲＡの外で費やした時間の情報（すなわち新しく追加される情報）がリストの最初に蓄積されてよい。すでに１６個の情報がリストに蓄積されている場合には、１６番目の情報（もっとも古い情報）を削除してから前記情報を追加してもよい。また、リストにはＲＲＣ＿ＩＤＬＥ状態とＲＲＣ＿ＣＯＮＮＥＣＴＥＤ状態で訪れたセルを含めてよい。また、リストにはＲＲＣ＿ＩＮＡＣＴＩＶＥ状態で訪れたセルを含めてよい。 Here, VisitedCellInfoList may include, for example, up to 16 most recently visited cells or information of time spent outside EUTRA. Information about the most recently visited cell or time spent outside EUTRA (ie newly added information) may be accumulated at the beginning of the list. When 16 pieces of information are already stored in the list, the 16th information (oldest information) may be deleted and then the information may be added. The list may also include cells visited in RRC_IDLE and RRC_CONNECTED states. Also, the list may include cells visited in the RRC_INACTIVE state.
　手順２：ＵＥ１２２は、他のＲＡＴのセルまたは圏外から、（ＲＲＣ＿ＣＯＮＮＥＣＴＥＤまたはＲＲＣ＿ＩＤＬＥにおいて、）ＥＵＴＲＡ（のセル）に入った場合、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに後述するエントリーを含める。このとき、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔのサイズなどに基づき最も古いエントリーを削除してからエントリーを含めてもよい。ＵＥ１２２は、エントリーのフィールドの一つであるｔｉｍｅＳｐｅｎｔにＥＵＴＲＡの外（すなわち他のＲＡＴのセルまたは圏外）で費やした時間の情報を含める。このとき、ｖｉｓｉｔｅｄＣｅｌｌＩｄはエントリーに含めなくてよい。上記エントリーが変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに含められる。 Step 2: When the UE 122 enters EUTRA (in RRC_CONNECTED or RRC_IDLE) from a cell of another RAT or out of service area, the UE 122 includes an entry to be described later in the variable VarMobilityHistoryReport. At this time, the UE 122 may include the entry after deleting the oldest entry based on the size of the variable VarMobilityHistoryReport. The UE 122 includes information on the time spent outside EUTRA (that is, outside the cell or coverage area of another RAT) in timeSpent, which is one of the fields of the entry. At this time, the visitedCellId need not be included in the entry. The above entry is included in the variable VarMobilityHistoryReport.
　ＮＲを考慮した移動履歴情報（Ｍｏｂｉｌｉｔｙ　Ｈｉｓｔｏｒｙ　Ｉｎｆｏｒｍａｔｉｏｎ）の例を説明する。 An example of movement history information (Mobility History Information) considering NR will be described.
　まず、ＵＥ１２２が移動履歴情報をストアするプロシージャについて説明する。このプロシージャはＬＴＥのＲＲＣ＿ＣＯＮＮＥＣＴＥＤとＲＲＣ＿ＩＤＬＥ、およびＮＲのＲＲＣ＿ＣＯＮＮＥＣＴＥＤとＲＲＣ＿ＩＮＡＣＴＩＶＥとＲＲＣ＿ＩＤＬＥとをカバーし、ＵＥ１２２によってどのように移動履歴情報がストアされるかを規定する。 First, the procedure for the UE 122 to store the movement history information will be described. This procedure covers LTE RRC_CONNECTED and RRC_IDLE, and NR RRC_CONNECTED, RRC_INACTIVE and RRC_IDLE and defines how movement history information is stored by the UE 122.
　ＵＥ１２２が移動履歴情報をストアするプロシージャの別の例について説明する。 Another example of the procedure in which the UE 122 stores the movement history information will be described.
　手順１：ＥＵＴＲＡまたはＮＲのＲＲＣ＿ＣＯＮＮＥＣＴＥＤにおけるサービングセルの一つであるＰＣｅｌｌや、ＲＲＣ＿ＩＤＬＥまたはＲＲＣ＿ＩＮＡＣＴＩＶＥにおけるサービングセルから他のセルまたは圏外（Ｏｕｔ　ｏｆ　ｓｅｒｖｉｃｅ）に変わった場合、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに後述するエントリー（ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏ）のリスト（ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏＬｉｓｔ）を含める。このとき、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔの蓄積可能な最大エントリー数に基づき最も古いエントリーを削除してからエントリーを含めてもよい。ＵＥ１２２は、前のＰＣｅｌｌあるいはサービングセルのセルグローバル識別子が存在する（Ａｖａｉｌａｂｌｅである）場合、エントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄにそのセルのセルグローバル識別子（ｃｅｌｌＧｌｏｂａｌＩｄ）を含めてよい。また、前のＰＣｅｌｌあるいはサービングセルがＮＲのセルである場合はＮＲのセルの情報を含めてもよい。例えば、ＮＲのセルの情報は、そのセルのセルグローバル識別子、および／または同期シグナルおよび物理ブロードキャストチャネルを含むブロック（ＳＳ／ＰＢＣＨブロック）を識別するインデックス情報であってもよい。前記ＳＳ／ＰＢＣＨブロックのインデックス情報は、既定の条件を満たすＳＳ／ＰＢＣＨブロックのインデックス情報であってよい。ＵＥ１２２は、前のＰＣｅｌｌあるいはサービングセルのセルグローバル識別子が存在しない（Ａｖａｉｌａｂｌｅでない）場合、前のＰＣｅｌｌあるいはサービングセルがＥＵＴＲＡのセルであれば、エントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄにそのセルの物理セル識別子（ｐｈｙｓＣｅｌｌＩｄ）とキャリア周波数（ｃａｒｒｉｅｒＦｒｅｑ）の情報を含め、前のＰＣｅｌｌあるいはサービングセルがＮＲのセルであれば、エントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄにＮＲのセルの情報を含めてよい。ＮＲのセルの情報は、例えば、そのセルの物理セル識別子（ｐｈｙｓＣｅｌｌＩｄ）およびＳＳ／ＰＢＣＨブロックの周波数の情報（ｓｓｂＦｒｅｑｕｅｎｃｙ）であってもよい。ＮＲのセルの情報は、例えば、そのセルの物理セル識別子、ＳＳ／ＰＢＣＨブロックの周波数の情報、およびＳＳ／ＰＢＣＨブロックのインデックス情報であってもよい。そして何れの場合であってもＵＥ１２２は、エントリーのフィールドの一つであるｔｉｍｅＳｐｅｎｔにそのＰＣｅｌｌまたはサービングセルで費やした時間の情報を含めてよい。上記エントリーが変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに含められる。 Step 1: When the PCell, which is one of the serving cells in RRC_CONNECTED of EUTRA or NR, or the serving cell in RRC_IDLE or RRC_INACTIVE is changed to another cell or out of range (Out of service), the UE122 is described in the variable VarMobilityHistoryellVoitryRepostVit (VarMobilityHistoricalResistorCV). ) List (VisitedCellInfoList). At this time, the UE 122 may delete the oldest entry based on the maximum storable number of entries of the variable VarMobilityHistoryReport and then include the entry. When the cell global identifier of the previous PCell or serving cell exists (Available), the UE 122 may include the cell global identifier (cellGlobalId) of the cell in the visitedCellId, which is one of the fields of the entry. Further, when the previous PCell or serving cell is an NR cell, information on the NR cell may be included. For example, the NR cell information may be the cell global identifier of the cell, and / or index information that identifies a block (SS / PBCH block) containing the synchronization signal and the physical broadcast channel. The SS / PBCH block index information may be SS / PBCH block index information that satisfies a predetermined condition. When the cell global identifier of the previous PCell or serving cell does not exist (not available), the UE 122, if the previous PCell or serving cell is a cell of EUTRA, the physical cell identifier of that cell in the visitedCellId, which is one of the fields of the entry. If the previous PCell or serving cell is an NR cell including the information of (physCellId) and carrier frequency (carrierFreq), the information of NR cell may be included in the visitedCellId which is one of the fields of the entry. The information of the NR cell may be, for example, the physical cell identifier (physCellId) of the cell and the frequency information (ssbFrequency) of the SS / PBCH block. The NR cell information may be, for example, the physical cell identifier of the cell, the SS / PBCH block frequency information, and the SS / PBCH block index information. In any case, the UE 122 may include information on the time spent in the PCell or the serving cell in timeSent, which is one of the fields of the entry. The above entry is included in the variable VarMobilityHistoryReport.
　ここで、ＶｉｓｉｔｅｄＣｅｌｌＩｎｆｏＬｉｓｔは、例えば、最大１６個の、もっとも最近訪れたＥＵＴＲＡおよびＮＲのセル、またはＥＵＴＲＡおよびＮＲの外で費やした時間の情報を含んでよい。もっとも最近訪れたセルまたはＥＵＴＲＡおよびＮＲの外で費やした時間の情報（すなわち新しく追加される情報）がリストの最初に蓄積されてよい。すでに１６個の情報がリストに蓄積されている場合には、１６番目の情報（もっとも古い情報）を削除してから前記情報を追加してもよい。また、リストにはＲＲＣ＿ＩＤＬＥ状態とＲＲＣ＿ＩＮＡＣＴＩＶＥとＲＲＣ＿ＣＯＮＮＥＣＴＥＤ状態で訪れたセルを含めてよい。 Here, the VisitedCellInfoList may include, for example, information on up to 16 most recently visited EUTRA and NR cells, or time spent outside EUTRA and NR. Information on the most recently visited cell or time spent outside EUTRA and NR (ie newly added information) may be accumulated at the beginning of the list. When 16 pieces of information are already stored in the list, the 16th information (oldest information) may be deleted and then the information may be added. Also, the list may include cells visited in RRC_IDLE, RRC_INACTIVE, and RRC_CONNECTED states.
　手順２：ＵＥ１２２は、ＥＵＴＲＡおよびＮＲ以外のＲＡＴのセルまたは圏外から、（ＲＲＣ＿ＣＯＮＮＥＣＴＥＤまたはＲＲＣ＿ＩＮＡＣＴＩＶＥまたはＲＲＣ＿ＩＤＬＥにおいて、）ＥＵＴＲＡまたはＮＲ（のセル）に入った場合、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに後述するエントリーを含める。このとき、ＵＥ１２２は、変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔのサイズなどに基づき最も古いエントリーを削除してからエントリーを含めてもよい。ＵＥ１２２は、エントリーのフィールドの一つであるｔｉｍｅＳｐｅｎｔにＥＵＴＲＡおよびＮＲの外（すなわちＥＵＴＲＡおよびＮＲ以外のＲＡＴのセルまたは圏外）で費やした時間の情報を含める。このとき、ｖｉｓｉｔｅｄＣｅｌｌＩｄはエントリーに含めなくてよい。上記エントリーが変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに含められる。 Procedure 2: When the UE 122 enters EUTRA or NR (in RRC_CONNECTED or RRC_INACTIVE or RRC_IDLE) from a cell or out-of-range of RAT other than EUTRA and NR, an entry described later is included in the variable VarMobilityHistoryReport. At this time, the UE 122 may include the entry after deleting the oldest entry based on the size of the variable VarMobilityHistoryReport. The UE 122 includes information on time spent outside EUTRA and NR (that is, a cell of RAT other than EUTRA and NR or out of range) in timeSent, which is one of the fields of the entry. At this time, the visitedCellId need not be included in the entry. The above entry is included in the variable VarMobilityHistoryReport.
　次に、端末装置情報（ＵＥ　Ｉｎｆｏｒｍａｔｉｏｎ）プロシージャについて説明する。端末装置情報プロシージャはＥＵＴＲＡＮ（ネットワーク）がＵＥ１２２に対して情報のレポートを要求するために使われる。例えば、移動履歴情報は、このプロシージャによってＵＥ１２２から基地局装置（ｅＮＢ１０２またはｇＮＢ１０８）に通知されてもよい。 Next, the terminal device information (UE Information) procedure will be described. The terminal information procedure is used by the EUTRAN (network) to request the UE 122 to report information. For example, the movement history information may be notified from the UE 122 to the base station apparatus (eNB 102 or gNB 108) by this procedure.
　ＥＵＴＲＡＮはＵＥＩｎｆｏｒｍａｔｉｏｎＲｅｑｕｅｓｔメッセージをＵＥ１２２に送ることによってこのプロシージャを開始する。 EUTRAN initiates this procedure by sending a UEInformationRequest message to UE122.
　手順１：セキュリティのアクティベーションが成功した後でＵＥＩｎｆｏｒｍａｔｉｏｎＲｅｑｕｅｓｔメッセージを受信したＵＥ１２２は、ＵＥＩｎｆｏｒｍａｔｉｏｎＲｅｑｕｅｓｔメッセージの一つの要素であるｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔＲｅｑが真にセットされていた場合、ＵＥＩｎｆｏｒｍａｔｉｏｎＲｅｓｐｏｎｓｅメッセージにｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔを含め、ｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔにＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔのエントリーを含める。さらに、ＵＥ１２２は、現在のセル（ＰＣｅｌｌ）のセルグローバル識別子をエントリーのフィールドの一つであるｖｉｓｉｔｅｄＣｅｌｌＩｄに含める。このときＵＥ１２２は、ｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔのサイズなどに基づき最も古いエントリーを削除してからエントリーを含めてもよい。そしてＵＥ１２２は、エントリーのフィールドの一つであるｔｉｍｅＳｐｅｎｔに現在のセルで費やした時間の情報を含める。上記エントリーがｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに含められる。そして、ｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔを含むＵＥＩｎｆｏｒｍａｔｉｏｎＲｅｓｐｏｎｓｅメッセージは、ＳＲＢ１またはＳＲＢ２を通じた送信のために下位レイヤに提出（ｓｕｂｍｉｔ）される。 Step 1: The UE 122, which has received the UEInformationRequest message after the successful activation of security, includes the mobilityInformationRepositoryRepository message in which the mobilityInformationRepositoryRepository message contains a mobilityInformationRepositoryRepositoryRepositoryMotorityResortiorRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRepositoryRestorationRestorationRestorationMessage message. Include. Further, the UE 122 includes the cell global identifier of the current cell (PCell) in the visitedCellId, which is one of the fields of the entry. At this time, the UE 122 may delete the oldest entry based on the size of the mobilityHistoryReport and then include the entry. Then, the UE 122 includes information on the time spent in the current cell in timeSpent, which is one of the fields of the entry. The above entry is included in the mobilityHistoryReport. Then, the UEInformationResponse message including the mobilityHistoryReport is submitted to the lower layer for transmission via the SRB1 or SRB2.
　図７は、本発明の実施の形態におけるＮＲのＲＲＣ接続確立手順（プロシージャ）のフローの一例を示す図である。このプロシージャの目的は、ＲＲＣ接続を確立することであってよい。ＲＲＣ接続の確立はＳＲＢ１の確立を伴ってよい。このプロシージャは、初期ＮＡＳ個別情報／メッセージ（Ｉｎｉｔｉａｌ　ＮＡＳ　ｄｅｄｉｃａｔｅｄ　ｉｎｆｏｒｍａｔｉｏｎ／ｍｅｓｓａｇｅ）をＵＥ１２２からＥ－ＵＴＲＡＮへ転送するために用いられてもよい。 FIG. 7 is a diagram showing an example of a flow of an NR RRC connection establishment procedure (procedure) in the embodiment of the present invention. The purpose of this procedure may be to establish an RRC connection. The establishment of RRC connection may be accompanied by the establishment of SRB1. This procedure may be used to transfer the initial NAS individual information / message (Initial NAS dedicated information / message) from the UE 122 to the E-UTRAN.
　ＲＲＣ接続を確立する場合、ＵＥ１２２はＲＲＣセットアップ要求（ＲＲＣＳｅｔｕｐＲｅｑｕｅｓｔ）メッセージの送信を開始してよい。 When establishing an RRC connection, the UE 122 may start transmitting an RRC setup request (RRCSetupRequest) message.
　ＲＲＣセットアップ要求メッセージの送信に関する処理（アクション）について説明する。 Explain the process (action) related to the transmission of RRC setup request message.
　ＵＥ１２２は、ＲＲＣレイヤの上位のレイヤから５ｇ－Ｓ－ＴＭＳＩが提供される場合、ｎｇ－5Ｇ－Ｓ－ＴＭＳＩ－Ｐａｒｔ1をＵＥ識別子（ｕｅ－Ｉｄｅｎｔｉｔｙ）にセットする。そうでない場合、ＵＥ識別子にランダムな値をセットする。 The UE 122 sets ng-5GS-TMSI-Part1 in the UE identifier (ue-Identity) when 5g-S-TMSI is provided from the layer above the RRC layer. Otherwise, set a random value for the UE identifier.
　ＵＥ１２２は、ＲＲＣセットアップ要求メッセージに含まれるフィールドの一つであるｅｓｔａｂｌｉｓｈｍｅｎｔＣａｕｓｅに、上位レイヤから受け取った情報に従って値をセットする。 The UE 122 sets a value in the establishmentCause, which is one of the fields included in the RRC setup request message, according to the information received from the upper layer.
　上記処理の後、ＵＥ１２２は、送信のためにＲＲＣセットアップ要求メッセージを下位レイヤに提出（Ｓｕｂｍｉｔ）する（ステップＳ７０１）。 After the above processing, the UE 122 submits (Submit) the RRC setup request message to the lower layer for transmission (step S701).
　ＲＲＣレジューム要求メッセージの送信に関する処理（アクション）について説明する。 Explain the processing (action) related to the transmission of the RRC resume request message.
　ＵＥ１２２はＲＲＣ接続をレジュームするように上位レイヤまたはＡＳレイヤに要求されたときに以下の処理を行う。 The UE 122 performs the following processing when the upper layer or the AS layer is requested to resume the RRC connection.
　ＵＥ１２２は、（Ａ）ＳＩＢ１にｕｓｅＦｕｌｌＲｅｓｕｍｅＩＤが含まれているなら、ＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔ１をメッセージとして用いて、ストアしている識別子のｆｕｌｌＩ－ＲＮＴＩの値をフィールドの一つであるｒｅｓｕｍｅＩｄｅｎｔｉｔｙにセットする。 If the (A) SIB1 includes the useFullResumeID, the UE 122 uses the RRCResumeRequest1 as a message and sets the fullI-RNTI value of the stored identifier in one of the fields, resumeIdentity.
　（Ａ）でない場合、ＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔをメッセージとして用いて、ストアしているｓｈｏｒｔＩ－ＲＮＴＩの値をフィールドの一つであるｓｈｏｒｔＲｅｓｕｍｅＩｄｅｎｔｉｔｙにセットする。 If it is not (A), RRCResumeRequest is used as a message, and the value of the stored shortI-RNTI is set in one of the fields, shortResumeIdentity.
　上記処理の後、ＵＥ１２２は、ＲＲＣレジューム要求メッセージに含まれるフィールドの一つであるｒｅｓｕｍｅＣａｕｓｅに、上位レイヤまたはＡＳレイヤから受け取った情報に従って値をセットする。 After the above processing, the UE 122 sets a value in the resumeCause, which is one of the fields included in the RRC resume request message, according to the information received from the upper layer or the AS layer.
　上記処理の後、ＲＲＣ設定を回復（リストア）し、ＰＤＣＰ状態（Ｓｔａｔｅ）を回復し、ＳＲＢ１のためのＰＤＣＰエンティティを再確立（Ｒｅ－ｅｓｔａｂｌｉｓｈ）する。 After the above processing, the RRC settings are restored (restored), the PDCP state (State) is restored, and the PDCP entity for SRB1 is re-established.
　上記処理の後、ＵＥ１２２は、ＳＲＢ１をレジュームする。 After the above processing, the UE 122 resumes SRB1.
　上記処理の後、ＵＥ１２２は、ＲＲＣレジューム要求メッセージ（ＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔまたはＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔ１）を送信のために下位レイヤに提出（Ｓｕｂｍｉｔ）する（ステップＳ７０１）。 After the above processing, the UE 122 submits (Submit) an RRC resume request message (RRCResumeRequest or RRCResumeRequest1) to the lower layer for transmission (step S701).
　ＵＥ１２２がＲＲＣセットアップメッセージを受信したとき（ステップＳ７０３）のプロシージャ（アクション）について説明する。 The procedure (action) when the UE 122 receives the RRC setup message (step S703) will be described.
　（Ａ）もし、ＲＲＣセットアップメッセージを、ＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔまたはＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔ１の返信として受け取ったなら、以下の（１）から（２）の処理を行う。 (A) If the RRC setup message is received as a reply to RRCResumeRequest or RRCResumeRequest1, the following processes (1) to (2) are performed.
　（１）蓄積（保持）していたＡＳコンテキスト、ｆｕｌｌＩ－ＲＮＴＩとｓｈｏｒｔＩ－ＲＮＴＩを捨てる（Ｄｉｓｃａｒｄする）。 (1) Discard (discard) the AS contexts that have been accumulated (held), fullI-RNTI and shortI-RNTI.
　（５）上位レイヤにＲＲＣ接続のフォールバックを通知する。 (5) Notify the upper layer of fallback of RRC connection.
　上記処理の後、ＲＲＣセットアップメッセージに含まれる情報に従い、セルグループの設定をおこなう。 After the above process, set the cell group according to the information included in the RRC setup message.
　上記処理の後、ＲＲＣセットアップメッセージに含まれる情報に従い、無線ベアラの設定をおこなう。 After the above processing, the radio bearer is set up according to the information contained in the RRC setup message.
　もし、ＲＲＣセットアップメッセージを、ＲＲＣＲｅｓｕｍｅＲｅｑｕｅｓｔまたはＲＲＣＳｅｔｕｐＲｅｑｕｅｓｔの返信として受け取ったなら、ＲＲＣ接続状態（ＲＲＣ＿ＣＯＮＮＥＣＴＥＤ）に遷移する。 If the RRC setup message is received as a reply of RRCResumeRequest or RRCSetupRequest, it transits to the RRC connection state (RRC_CONNECTED).
　上記処理の後、以下の（１）から（４）に示すようにＲＲＣセットアップ完了メッセージのコンテンツをセットする。ただし、ＵＥ１２２のサポートするリリースによって、（１）から（４）の何れか、または何れかの組み合わせがセットされなくてよい。例えば、前記リリースＡのＵＥ１２２が（２）から（４）をセットせず、リリースＢのＵＥ１２２が（４）をセットしなくてもよい。また、例えば、前記リリースＡのＵＥ１２２が（４）をセットせず、リリースＢのＵＥ１２２が（１）から（４）をセットしてもよい。 After the above processing, set the contents of the RRC setup completion message as shown in (1) to (4) below. However, depending on the release supported by the UE 122, any one of (1) to (4) or any combination may not be set. For example, the release A UE 122 may not set (2) to (4) and the release B UE 122 may not set (4). Further, for example, the release A UE 122 may not set (4) but the release B UE 122 may set (1) to (4).
　（１）もし、上位レイヤが識別子（５Ｇ－Ｓ－ＴＭＳＩ）を提供しているなら、（Ａ）もしＲＲＣセットアップメッセージを、ＲＲＣＳｅｔｕｐＲｅｑｕｅｓｔの返信として受け取ったなら、ｎｇ－５Ｇ－Ｓ－ＴＭＳＩ－Ｐａｒｔ２をｎｇ－５Ｇ－Ｓ－ＴＭＳＩ－Ｖａｌｕｅの値としてセットする。（Ａ）でない場合、５Ｇ－Ｓ－ＴＭＳＩをｎｇ－５Ｇ－Ｓ－ＴＭＳＩ－Ｖａｌｕｅの値としてセットする。 (1) If the upper layer provides the identifier (5G-S-TMSI), (A) if an RRC setup message is received in response to RRCSetupRequest, then ng-5G-S-TMSI-Part2 is sent. Set as the value of ng-5G-S-TMSI-Value. If not (A), 5G-S-TMSI is set as the value of ng-5G-S-TMSI-Value.
　（２）メッセージのコンテンツにｍｏｂｉｌｉｔｙＳｔａｔｅを含め、ｍｏｂｉｌｉｔｙＳｔａｔｅの値として、移動状態を設定する。 (2) Include the mobilityState in the content of the message and set the movement state as the value of the mobilityState.
　（３）もし、ＵＥ１２２が移動履歴情報の蓄積をサポートしており、ＵＥ１２２の変数ＶａｒＭｏｂｉｌｉｔｙＨｉｓｔｏｒｙＲｅｐｏｒｔに移動履歴情報が存在する（利用できる（Ａｖａｉｌａｂｌｅ））なら、メッセージのコンテンツにｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＡｖａｉｌを含め、ｍｏｂｉｌｉｔｙＨｉｓｔｏｒｙＡｖａｉｌの値として、真（ｔｒｕｅ）を設定する。 (3) If the UE 122 supports the accumulation of the movement history information and the movement history information is present in the variable VarMobilityHistoryReport of the UE 122 (available (Available)), the content of the message includes the mobilityHistoryAvail value of the mobilityHistoryAvail. , True (true).
　（４）以下の（Ａ）から（Ｇ）に示すようにＲＲＣセットアップ完了メッセージのコンテンツをセットする。 (4) Set the contents of the RRC setup completion message as shown in (A) to (G) below.
　（Ａ）もし、ＵＥ１２２が変数ＶａｒＲＬＦ－Ｒｅｐｏｒｔに無線リンク失敗またはハンドオーバ失敗の情報が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＲＬＦ－Ｒｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリスト（ｐｌｍｎ－ＩｄｅｎｔｉｔｙＬｉｓｔ）にＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｒｌｆ－ＩｎｆｏＡｖａｉｌａｂｌｅを含め、ｒｌｆ－ＩｎｆｏＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (A) If the UE 122 has the information of the radio link failure or the handover failure in the variable VarRLF-Report (Available), and the list of PLMN identifiers (plmn-IdentityList) stored in the VarRLF-Report includes RPLMN. , Rlf-InfoAvailable is included in the content of the message, and the value of rlf-InfoAvailable is set to true.
　（Ｂ）もし、ＵＥ１２２がＥＵＴＲＡおよび／またはＮＲに対するＭＢＳＦＮの記録された測定（ＭＢＳＦＮｌｏｇｇｅｄ ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮの値として、真（ｔｒｕｅ）を設定する。 (B) If the UE 122 has recorded MBSFN logged measurements for EUTRA and / or NR (Available) and the list of PLMN identifiers stored in VarLogMeasReport contains RPLMN, the content of the message. Includes logMeasAvailableMBSFN, and true is set as the value of logMeasAvailableMBSFN.
　（Ｃ）もし、ＵＥ１２２がＥＵＴＲＡおよび／またはＮＲに対するＭＢＳＦＮの記録された測定（ＭＢＳＦＮ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＭＢＳＦＮの値として、真（ｔｒｕｅ）を設定する。そうでない場合、もしＵＥ１２２がＥＵＴＲＡおよび／またはＮＲに対する記録された測定（ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (C) If the UE 122 has recorded MBSFN logged measurements for EUTRA and / or NR (Available), and the list of PLMN identifiers stored in VarLogMeasReport contains RPLMN, then the message The content includes logMeasAvailableMBSFN, and true is set as the value of logMeasAvailableMBSFN. Otherwise, if the UE 122 has recorded measurements for EUTRA and / or NR available and the RPLMN is included in the list of PLMN identifiers stored in VarLogMeasReport, then the content of the message has logMeavalAvailable. Including, the value of logMeasAvailable is set to true.
　（Ｄ）もし、ＵＥ１２２がＢｌｕｅｔｏｏｔｈの記録された測定（Ｂｌｕｅｔｏｏｔｈ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＢＴを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＢＴの値として、真（ｔｒｕｅ）を設定する。 (D) If the UE 122 has Bluetooth recorded measurements (Available), and the list of PLMN identifiers accumulated in VarLogMeasReport includes RPLMN, logTale and vMales are included in the content of the message. True is set as the value of logMeasAvailableBT.
　（Ｅ）もし、ＵＥ１２２がＷＬＡＮの記録された測定（ＷＬＡＮ　ｌｏｇｇｅｄ　ｍｅａｓｕｒｅｍｅｎｔｓ）が存在（Ａｖａｉｌａｂｌｅ）し、ＶａｒＬｏｇＭｅａｓＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子のリストにＲＰＬＭＮが含まれるなら、メッセージのコンテンツにｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＷＬＡＮを含め、ｌｏｇＭｅａｓＡｖａｉｌａｂｌｅＷＬＡＮの値として、真（ｔｒｕｅ）を設定する。 (E) If the UE 122 has WLAN recorded measurements (WLAN logged measurements) (Available) and RPLMN is included in the list of PLMN identifiers accumulated in VarLogMeasReport, logMeasAvailableLAN is included in the message content. True is set as the value of logMeasAvailableWLAN.
　（Ｆ）もし、ＵＥ１２２が変数ＶａｒＣｏｎｎＥｓｔＦａｉｌＲｅｐｏｒｔに接続確立失敗情報（ｃｏｎｎｅｃｔｉｏｎ　ｅｓｔａｂｌｉｓｈｍｅｎｔ　ｆａｉｌｕｒｅ　ｉｎｆｏｒｍａｔｉｏｎ）が存在（Ａｖａｉｌａｂｌｅ）し、ＲＰＬＭＮがＶａｒＣｏｎｎＥｓｔＦａｉｌＲｅｐｏｒｔに蓄積されたＰＬＭＮの識別子と等しければ、メッセージのコンテンツにｃｏｎｎＥｓｔＦａｉｌＩｎｆｏＡｖａｉｌａｂｌｅを含め、ｃｏｎｎＥｓｔＦａｉｌＩｎｆｏＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (F) If the UE 122 includes connection failure information (connection establishment failure information) in the variable VarConnEstFailReport (Available) and RPLMN is stored in the VarConnEstFailReportFailAnalog message, and the content of the RPLMN is stored in the VarConnEstFailReportEffectEvenaFailInfoEvenaFailInfoEvenaFailEfnAnalog, and the content of the RPLMN is stored in the VarConnEstFailReportEfalEnaFalInfo and the content of the VarConnEstFailReapartEnaf. Is set to true.
　（Ｇ）もし、ＳＩＢ１がｉｄｌｅＭｏｄｅＭｅａｓｕｒｅｍｅｎｔｓを含み、ＵＥ１２２の変数ＶａｒＭｅａｓＩｄｌｅＲｅｐｏｒｔにＲＲＣ＿ＩＤＬＥ状態および／またはＲＲＣ＿ＩＮＡＣＴＩＶＥ状態における測定情報（ＩＤＬＥ　ｍｏｄｅ　ｍｅａｓｕｒｅｍｅｎｔ　ｉｎｆｏｒｍａｔｉｏｎ）が存在（Ａｖａｉｌａｂｌｅ）すれば、メッセージのコンテンツにｉｄｌｅＭｅａｓＡｖａｉｌａｂｌｅを含め、ｉｄｌｅＭｅａｓＡｖａｉｌａｂｌｅの値として、真（ｔｒｕｅ）を設定する。 (G) If the SIB1 includes idleModeMeasurements, and the variable VarMeasIdleReport of the UE 122 includes the measurement information (IDLE modeableAvementinformation) message in the RRC_IDLE state and / or RRC_INACTIVE state information (IDLE), there is a message containing the content (Available) and the content of the message (ALEvailableMeasurementInformation) in the RRC_IDLE ailableMeasurement information. As a value, true is set.
　上記処理の後、送信のために下位レイヤにＲＲＣセットアップ完了メッセージを提出する（ステップＳ７０５）。 After the above processing, the RRC setup completion message is submitted to the lower layer for transmission (step S705).
　なお、上記一連のプロシージャのすべてが実行される必要はなく、プロシージャの一部、のみが実行されてもよい。また、複数の条件による判断が行われる場合に、それら条件の一部のみを条件として判断が行われてもよい。他のすべてのプロシージャについても同様である。また、記載した処理以外の処理が各プロシージャに含まれてもよい。 Note that it is not necessary to execute all of the above series of procedures, and only a part of the procedures may be executed. In addition, when the determination is performed based on a plurality of conditions, the determination may be performed using only a part of the conditions. The same is true for all other procedures. Further, each procedure may include processing other than the described processing.
　また、ＵＥ１２２で蓄積された前記各情報は、ＥＵＴＲＡに接続した場合とＮＲに接続した場合とで、同一の情報がネットワークに通知されてもよいし、異なる（または独立した）情報が通知されてもよい。例えば、ＥＵＴＲＡとＮＲとで独立した変数を用いてそれぞれ独立した情報を蓄積してもよいし、共通の変数に蓄積した情報をそれぞれ異なる条件で抽出および／または整形してもよい。 Further, regarding each of the above information accumulated in the UE 122, the same information may be notified to the network when connecting to EUTRA and when connecting to NR, or different (or independent) information may be notified. Good. For example, independent information may be stored using independent variables for EUTRA and NR, or information stored in a common variable may be extracted and / or shaped under different conditions.
　また、ＵＥ１２２で蓄積された前記各情報は、ＥＵＴＲＡに接続した場合には、ＥＵＴＲＡのＲＲＣメッセージでネットワークに通知されてもよいし、一部あるいは全部の情報がＮＲのＲＲＣメッセージで生成され、ＥＵＴＲＡのＲＲＣメッセージにエンカプセル化されてネットワークに通知されてもよい。また、ＵＥ１２２で蓄積された前記各情報は、ＮＲに接続した場合には、ＮＲのＲＲＣメッセージでネットワークに通知されてもよいし、一部あるいは全部の情報がＥＵＴＲＡのＲＲＣメッセージで生成され、ＮＲのＲＲＣメッセージにエンカプセル化されてネットワークに通知されてもよい。 Further, the above-mentioned respective information accumulated in the UE 122 may be notified to the network by an RRC message of EUTRA when connected to EUTRA, or a part or all of the information is generated by an RRC message of NR, and EUTRA RRC message may be encapsulated and notified to the network. Also, the above-mentioned respective information accumulated in the UE 122 may be notified to the network by an NR RRC message when connected to the NR, or a part or all of the information may be generated by an EUTRA RRC message and the NR RRC message may be encapsulated and notified to the network.
　また、上記プロシージャはＲＲＣレイヤで行われてよい。すなわち、プロシージャ中における上位レイヤとはＲＲＣレイヤの上位レイヤ（例えばＮＡＳレイヤ）であってよいし、下位レイヤとはＲＲＣレイヤの下位レイヤ（例えばＰＤＣＰレイヤやＲＬＣレイヤやＭＡＣレイヤやＰＨＹレイヤ）であってよい。 Also, the above procedure may be performed in the RRC layer. That is, the upper layer in the procedure may be the upper layer of the RRC layer (for example, NAS layer), and the lower layer may be the lower layer of the RRC layer (for example, PDCP layer, RLC layer, MAC layer, or PHY layer). You may.
　図５は本発明の実施の形態における端末装置（ＵＥ１２２）の構成を示すブロック図である。なお、説明が煩雑になることを避けるために、図５では、本発明の一態様と密接に関連する主な構成部のみを示す。 FIG. 5 is a block diagram showing the configuration of the terminal device (UE 122) in the embodiment of the present invention. Note that in order to avoid complexity of description, FIG. 5 illustrates only main components which are closely related to one embodiment of the present invention.
　図５に示すＵＥ１２２は、ｅＮＢ１０２からＲＲＣ接続セットアップメッセージ等、及びｇＮＢ１０８からＲＲＣセットアップメッセージ等を受信する受信部５００、及び受信したメッセージに含まれる各種情報及び各種条件等に従って処理を行う処理部５０２、ｅＮＢ１０２へＲＲＣ接続要求メッセージ、ＲＲＣ接続セットアップ完了メッセージ等、及びｇＮＢ１０８へＲＲＣセットアップ要求メッセー、ＲＲＣセットアップ完了メッセージ等を送信する送信部５０４から成る。また様々な条件に基づき各部の動作を制御する制御部を別途備えてもよい。 The UE 122 illustrated in FIG. 5 receives the RRC connection setup message and the like from the eNB 102 and the RRC setup message and the like from the gNB 108, and a processing unit 502 that performs processing according to various information and various conditions included in the received message. The transmission unit 504 transmits an RRC connection request message, an RRC connection setup completion message and the like to the eNB 102 and an RRC setup request message and an RRC setup completion message and the like to the gNB 108. In addition, a control unit that controls the operation of each unit based on various conditions may be separately provided.
　図６は本発明の実施の形態における基地局装置（ｇＮＢ１０８）の構成を示すブロック図である。なお、説明が煩雑になることを避けるために、図６では、本発明の一態様と密接に関連する主な構成部のみを示す。 FIG. 6 is a block diagram showing the configuration of the base station device (gNB 108) according to the embodiment of the present invention. Note that in order to avoid complicated description, FIG. 6 illustrates only main components which are closely related to one embodiment of the present invention.
　図６に示すｇＮＢ１０８は、ＵＥ１２２へＲＲＣメッセージ等を送信する送信部６００、及び各種情報要素（ＩＥ：Ｉｎｆｏｒｍａｔｉｏｎ　Ｅｌｅｍｅｎｔ）を含めたＲＲＣメッセージを作成し、ＵＥ１２２に送信する事により、ＵＥ１２２の処理部５０２に処理を行わせる処理部６０２、及びＵＥ１２２よりＲＲＣメッセージ等を受信する受信部６０４から成る。なお、図６に示す構成は、ｅＮＢ１０２に適応されてもよい。また様々な条件に基づき各部の動作を制御する制御部を別途備えてもよい。 The gNB 108 illustrated in FIG. 6 creates a transmission unit 600 that transmits an RRC message or the like to the UE 122 and an RRC message that includes various information elements (IE: Information Element), and transmits the UE to the processing unit 502 of the UE 122. And a receiving unit 604 that receives an RRC message and the like from the UE 122. The configuration illustrated in FIG. 6 may be applied to the eNB 102. In addition, a control unit that controls the operation of each unit based on various conditions may be separately provided.
　このように、本発明の実施の形態では、ＵＥ１２２が移動（モビリティ）に関する情報を通知することにより、ｅＮＢ１０２および／またはｇＮＢ１０８が適切なパラメータ設定をＵＥ１２２に行うことができる。 As described above, in the embodiment of the present invention, the eNB 102 and / or the gNB 108 can perform the appropriate parameter setting to the UE 122 by the UE 122 notifying the information on the mobility.
　なお、上記説明で用いたメッセージおよび／または情報要素のフィールドの一部、又は全ては、オプショナルであってもよい。即ち上記説明で用いたメッセージおよび／または情報要素のフィールドは必要に応じてＲＲＣメッセージに含まれてもよい。 Note that some or all of the fields of the message and / or information element used in the above description may be optional. That is, the fields of the message and / or information element used in the above description may be included in the RRC message as necessary.
　なお本発明の各実施の形態における無線ベアラとは、ＤＲＢであってもよいし、ＳＲＢであってもよい。 The radio bearer in each embodiment of the present invention may be DRB or SRB.
　本発明の実施形態における、ＵＥ１２２、ｅＮＢ１０２、および／またはｇＮＢ１０８の種々の態様について説明する。 Various aspects of the UE 122, the eNB 102, and / or the gNB 108 according to the embodiment of the present invention will be described.
　（１）本発明の第１の態様は、基地局装置と通信する端末装置であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する受信部と、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する送信部と、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する処理部とを備え、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (1) A first aspect of the present invention is a terminal device that communicates with a base station device, and instructs system information reported from the base station device and establishment of an RRC connection transmitted from the base station device. A receiving unit for receiving the message, a transmitting unit for transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment, and a process for selecting information to be included in the RRC connection setup completion message And an RRC connection setup completion message indicating that the first information is present if the first information is stored when the terminal device connects to the EPC by the EUTRA wireless technology. In addition, when the terminal device connects to EPC or 5GC by the EUTRA wireless technology, which core network is connected to Whether includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（２）本発明の第１の態様において、前記端末装置が、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (2) In the first aspect of the present invention, even if the terminal device does not connect to the EPC by the EUTRA wireless technology, the specific information is included in the system information notified by the base station device. When included, the RRC connection setup completion message includes information indicating that the first information exists if the first information is accumulated.
　（３）本発明の第２の態様は、端末装置と通信する基地局装置であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する送信部と、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する受信部と、前記システム情報に含める情報を選択する処理部とを備え、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (3) A second aspect of the present invention is a base station device that communicates with a terminal device, and a transmission unit that transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection, and an RRC. The terminal device does not connect to the EPC using the EUTRA wireless technology, including a receiving unit that receives a message (RRC connection setup completion message) notifying completion of connection establishment and a processing unit that selects information to be included in the system information. In this case, if the first information is stored, the system information includes information instructing the terminal device to include the information indicating that the first information exists in the RRC connection setup completion message.
　（４）本発明の第３の態様は、基地局装置と通信する端末装置に適用される通信方法であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信するステップと、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信するステップと、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択するステップとを少なくとも含み、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (4) A third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device, wherein system information reported from the base station device and RRC transmitted from the base station device are provided. A step of receiving a message instructing the establishment of a connection, a step of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message And at least the step of selecting the first information is stored in the RRC when the terminal device connects to the EPC using the EUTRA wireless technology, the information indicating that the first information exists is stored in the RRC. When the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, it is included in the connection setup completion message. To, whether to connect to any of the core network includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（５）本発明の第３の態様において、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (5) In the third aspect of the present invention, even when the terminal device does not connect to the EPC by the EUTRA wireless technology, when the system information notified by the base station device includes specific information, If the first information is stored, information indicating that the first information exists is included in the RRC connection setup completion message.
　（６）本発明の第４の態様は、端末装置と通信する基地局装置に適用される通信方法であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信するステップと、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信するステップと、前記システム情報に含める情報を選択するステップとを少なくとも含み、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (6) A fourth aspect of the present invention is a communication method applied to a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. At least, a step of receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment, and a step of selecting information to be included in the system information, wherein the terminal device uses EUTRA wireless technology. When not connecting to the EPC, the system is provided with information for instructing the terminal device to include information indicating that the first information is present if the first information is stored in the RRC connection setup completion message. Include in information.
　（７）本発明の第５の態様は、基地局装置と通信する端末装置に実装される集積回路であって、前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する機能と、ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する機能と、前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する機能を前記端末装置に対して発揮させ、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (7) A fifth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device, wherein system information notified from the base station device and RRC transmitted from the base station device are provided. A function of receiving a message instructing the establishment of a connection, a function of transmitting a message notifying the base station device of the completion of the RRC connection establishment (RRC connection setup completion message), and information included in the RRC connection setup completion message. If the terminal device is caused to exhibit the function of selecting, and the terminal device connects to the EPC by the EUTRA wireless technology, the first information exists if the first information is stored. When the terminal device connects to the EPC or 5GC by the EUTRA wireless technology by including the information shown in the RRC connection setup completion message. To, whether to connect to any of the core network includes information indicating that the if the accumulated second information the second information is present in the RRC connection setup complete message.
　（８）本発明の第５の態様において、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める。 (8) In the fifth aspect of the present invention, even when the terminal device does not connect to the EPC with the EUTRA wireless technology, when the system information notified by the base station device includes specific information, If the first information is stored, information indicating that the first information exists is included in the RRC connection setup completion message.
　（９）本発明の第６の態様は、端末装置と通信する基地局装置に実装される集積回路であって、システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する機能と、ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する機能と、前記システム情報に含める情報を選択する機能を前記基地局装置に対して発揮させ、前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める。 (9) A sixth aspect of the present invention is an integrated circuit mounted in a base station device that communicates with a terminal device, which transmits system information and a message (RRC connection setup message) instructing establishment of an RRC connection. The base station device, the terminal device having the function to perform, a function to receive a message notifying the completion of the RRC connection establishment (RRC connection setup completion message), and a function to select information to be included in the system information. If the terminal device does not connect to the EPC using the EUTRA wireless technology, the terminal device may include information indicating that the first information exists if the first information is stored in the RRC connection setup completion message. Include instructing information in the system information.
　これにより、ＵＥ１２２と、ｅＮＢ１０２および／またはｇＮＢ１０８とが効率的に通信をおこなうことができる。 With this, the UE 122 and the eNB 102 and / or gNB 108 can efficiently communicate with each other.
　なお、以上説明した実施形態は単なる例示に過ぎず、様々な変形例、置換例を用いて実現することができる。例えば、上りリンク送信方式は、ＦＤＤ（周波数分割復信）方式とＴＤＤ（時分割復信）方式のどちらの通信システムに対しても適用可能である。また、実施形態で示される各パラメータや各イベントの名称は、説明の便宜上呼称しているものであって、実際に適用される名称と本発明の実施形態の名称とが異なっていても、本発明の実施形態において主張する発明の趣旨に影響するものではない。 The embodiment described above is merely an example, and can be realized by using various modifications and substitutions. For example, the uplink transmission method can be applied to both the FDD (frequency division duplex) scheme and the TDD (time division duplex) scheme. Further, the names of each parameter and each event shown in the embodiment are referred to for convenience of explanation, and even if the name actually applied and the name of the embodiment of the present invention are different, It does not affect the gist of the claimed invention in the embodiments of the invention.
　本発明に関わる装置で動作するプログラムは、本発明に関わる上述した実施形態の機能を実現するように、Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ（ＣＰＵ）等を制御してコンピュ－タを機能させるプログラムであってもよい。プログラムあるいはプログラムによって取り扱われる情報は、処理時に一時的にＲａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ（ＲＡＭ）などの揮発性メモリに読み込まれ、あるいはフラッシュメモリなどの不揮発性メモリやＨａｒｄ　Ｄｉｓｋ　Ｄｒｉｖｅ（ＨＤＤ）に格納され、必要に応じてＣＰＵによって読み出し、修正・書き込みが行なわれる。 The program that operates on the device related to the present invention may be a program that controls the Central Processing Unit (CPU) or the like to cause the computer to function so as to realize the functions of the above-described embodiments related to the present invention. .. The program or information handled by the program is temporarily read into a volatile memory such as Random Access Memory (RAM) at the time of processing, or stored in a nonvolatile memory such as a flash memory or a Hard Disk Drive (HDD). In response, the CPU reads, corrects, and writes.
　なお、上述した実施形態における装置の一部、をコンピュ－タで実現するようにしてもよい。その場合、この制御機能を実現するためのプログラムをコンピュ－タが読み取り可能な記録媒体に記録して、この記録媒体に記録されたプログラムをコンピュ－タシステムに読み込ませ、実行することによって実現してもよい。ここでいう「コンピュ－タシステム」とは、装置に内蔵されたコンピュ－タシステムであって、オペレ－ティングシステムや周辺機器等のハ－ドウェアを含むものとする。また、「コンピュ－タが読み取り可能な記録媒体」とは、半導体記録媒体、光記録媒体、磁気記録媒体等のいずれであってもよい。 Note that a part of the device in the above-described embodiment may be realized by a computer. In that case, the program for realizing the control function is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read by the computer system and executed. Good. The "computer system" referred to here is a computer system built in the apparatus and includes operating systems and hardware such as peripheral devices. The “computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, or the like.
　さらに「コンピュ－タが読み取り可能な記録媒体」とは、インターネット等のネットワークや電話回線等の通信回線を介してプログラムを送信する場合の通信線のように、短時間、動的にプログラムを保持するもの、その場合のサーバやクライアントとなるコンピュ－タシステム内部の揮発性メモリのように、一定時間プログラムを保持しているものも含んでもよい。また上記プログラムは、前述した機能の一部を実現するためのものであってもよく、さらに前述した機能をコンピュ－タシステムにすでに記録されているプログラムとの組み合わせで実現できるものであってもよい。 Furthermore, a "computer-readable recording medium" means that a program can be held dynamically for a short period of time, such as a communication line for transmitting the program via a network such as the Internet or a communication line such as a telephone line. It may include a program that holds a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or a client in that case. Further, the above-mentioned program may be for realizing a part of the above-mentioned functions, and may be one for realizing the above-mentioned functions in combination with a program already recorded in the computer system. ..
　また、上述した実施形態に用いた装置の各機能ブロック、または諸特徴は、電気回路、すなわち典型的には集積回路あるいは複数の集積回路で実装または実行され得る。本明細書で述べられた機能を実行するように設計された電気回路は、汎用用途プロセッサ、デジタルシグナルプロセッサ（ＤＳＰ）、特定用途向け集積回路（ＡＳＩＣ）、フィールドプログラマブルゲートアレイ（ＦＰＧＡ）、またはその他のプログラマブル論理デバイス、ディスクリートゲートまたはトランジスタロジック、ディスクリートハードウェア部品、またはこれらを組み合わせたものを含んでよい。汎用用途プロセッサは、マイクロプロセッサであってもよいし、代わりにプロセッサは従来型のプロセッサ、コントロ－ラ、マイクロコントロ－ラ、またはステ－トマシンであってもよい。汎用用途プロセッサ、または前述した各回路は、デジタル回路で構成されていてもよいし、アナログ回路で構成されていてもよい。また、半導体技術の進歩により現在の集積回路に代替する集積回路化の技術が出現した場合、当該技術による集積回路を用いることも可能である。 Also, each functional block or various features of the apparatus used in the above-described embodiments may be implemented or executed by an electric circuit, that is, typically an integrated circuit or a plurality of integrated circuits. An electrical circuit designed to perform the functions described herein may be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA), or other. Programmable logic devices, discrete gate 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 any conventional processor, controller, microcontroller, or state machine. The general-purpose processor or each of the circuits described above may be configured by a digital circuit or an analog circuit. Further, in the case where an integrated circuit technology that replaces the current integrated circuit appears due to the progress of semiconductor technology, it is also possible to use the integrated circuit according to the technology.
　なお、本願発明は上述の実施形態に限定されるものではない。実施形態では、装置の一例を記載したが、本願発明は、これに限定されるものではなく、屋内外に設置される据え置き型、または非可動型の電子機器、たとえば、ＡＶ機器、キッチン機器、掃除・洗濯機器、空調機器、オフィス機器、自動販売機、その他生活機器などの端末装置もしくは通信装置に適用出来る。 Note that the present invention is not limited to the above embodiment. Although an example of the apparatus is described in the embodiment, the present invention is not limited to this, and a stationary or non-movable electronic device installed indoors or outdoors, for example, an AV device, a kitchen device, It can be applied to terminal devices or communication devices such as cleaning / laundry equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.
　以上、この発明の実施形態に関して図面を参照して詳述してきたが、具体的な構成はこの実施形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計変更等も含まれる。また、本発明は、請求項に示した範囲で種々の変更が可能であり、異なる実施形態にそれぞれ開示された技術的手段を適宜組み合わせて得られる実施形態についても本発明の技術的範囲に含まれる。また、上記実施形態に記載された要素であり、同様の効果を奏する要素同士を置換した構成も含まれる。 Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design changes and the like within a range not departing from the gist of the present invention. The present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Be done. Further, a configuration in which the elements described in the above embodiment and having the same effect are replaced with each other is also included.

Claims (9)

  1. 　基地局装置と通信する端末装置であって、
    　前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する受信部と、
    　ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する送信部と、
    　前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する処理部とを備え、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める
    　端末装置。     A terminal device that communicates with a base station device,
    A receiving unit for receiving system information broadcast from the base station device and a message instructing establishment of an RRC connection transmitted from the base station device;
    A transmission unit for transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment;
    A processing unit for selecting information to be included in the RRC connection setup completion message,
    When the terminal device connects to the EPC by the EUTRA wireless technology, if the first information is stored, the RRC connection setup completion message includes information indicating that the first information exists,
    When the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, the second information is present if the second information is accumulated regardless of which core network the terminal device is connected to. A terminal device that includes the information indicating in the RRC connection setup completion message.
  2. 　請求項１記載の端末装置であって、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める端末装置。     The terminal device according to claim 1,
    Even when the terminal device does not connect to the EPC by the EUTRA wireless technology, if the first information is stored when the system information notified by the base station device includes specific information, A terminal device that includes information indicating that the first information exists in the RRC connection setup completion message.
  3. 　端末装置と通信する基地局装置であって、
    　システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する送信部と、
    　ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する受信部と、
    　前記システム情報に含める情報を選択する処理部とを備え、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める
    　基地局装置。     A base station device that communicates with a terminal device,
    A transmitter for transmitting system information and a message (RRC connection setup message) instructing establishment of an RRC connection;
    A receiver for receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment;
    A processing unit that selects information to be included in the system information,
    In the case where the terminal device does not connect to the EPC by the EUTRA wireless technology, including the information indicating that the first information is present if the first information is stored in the RRC connection setup completion message is included. A base station device that includes information instructing a terminal device in the system information.
  4. 　基地局装置と通信する端末装置に適用される通信方法であって、
    　前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信するステップと、
    　ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信するステップと、
    　前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択するステップとを少なくとも含み、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める
    　通信方法。     A communication method applied to a terminal device communicating with a base station device,
    Receiving system information broadcast from the base station device and a message instructing establishment of an RRC connection transmitted from the base station device,
    Transmitting a message (RRC connection setup completion message) notifying the base station device of completion of RRC connection establishment;
    At least selecting information to be included in the RRC connection setup complete message,
    When the terminal device connects to the EPC by the EUTRA wireless technology, if the first information is stored, the RRC connection setup completion message includes information indicating that the first information exists,
    When the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, the second information is present if the second information is accumulated regardless of which core network the terminal device is connected to. A communication method in which the indicated information is included in the RRC connection setup completion message.
  5. 　請求項４記載の通信方法であって、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める通信方法。     The communication method according to claim 4, wherein
    Even when the terminal device does not connect to the EPC by the EUTRA wireless technology, if the first information is stored when the system information notified by the base station device includes specific information, A communication method including information indicating that the first information is present in the RRC connection setup completion message.
  6. 　端末装置と通信する基地局装置に適用される通信方法であって、
    　システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信するステップと、
    　ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信するステップと、
    　前記システム情報に含める情報を選択するステップとを少なくとも含み、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める
    　通信方法。     A communication method applied to a base station device communicating with a terminal device,
    Transmitting system information and a message (RRC connection setup message) instructing establishment of RRC connection;
    Receiving a message notifying the completion of RRC connection establishment (RRC connection setup completion message),
    At least selecting information to be included in the system information,
    In the case where the terminal device does not connect to the EPC by the EUTRA wireless technology, including the information indicating that the first information is present if the first information is stored in the RRC connection setup completion message is included. A communication method for including information instructing a terminal device in the system information.
  7. 　基地局装置と通信する端末装置に実装される集積回路であって、
    　前記基地局装置から報知されるシステム情報と前記基地局装置から送信されるＲＲＣ接続の確立を指示するメッセージとを受信する機能と、
    　ＲＲＣ接続確立の完了を前記基地局装置に通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を送信する機能と、
    　前記ＲＲＣ接続セットアップ完了メッセージに含める情報を選択する機能を前記端末装置に対して発揮させ、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続する場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含め、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣまたは５ＧＣに接続する場合に、何れのコアネットワークに接続するかに関わらず、第２の情報を蓄積していれば前記第２の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める
    　集積回路。     An integrated circuit mounted on a terminal device that communicates with a base station device,
    A function of receiving system information broadcast from the base station device and a message instructing establishment of an RRC connection transmitted from the base station device;
    A function of transmitting a message (RRC connection setup completion message) notifying the base station device of the completion of RRC connection establishment;
    Causing the terminal device to exert a function of selecting information to be included in the RRC connection setup completion message,
    When the terminal device connects to the EPC by the EUTRA wireless technology, if the first information is stored, the RRC connection setup completion message includes information indicating that the first information exists,
    When the terminal device connects to the EPC or 5GC using the EUTRA wireless technology, the second information is present if the second information is accumulated regardless of which core network the terminal device is connected to. An integrated circuit including the information indicating in the RRC connection setup complete message.
  8. 　請求項７記載の集積回路であって、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合であっても、前記基地局装置が報知するシステム情報に特定の情報が含まれる場合に、前記第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含める集積回路。     The integrated circuit according to claim 7, wherein
    Even when the terminal device does not connect to the EPC by the EUTRA wireless technology, if the first information is stored when the system information notified by the base station device includes specific information, An integrated circuit including information indicating that first information is present in the RRC connection setup complete message.
  9. 　端末装置と通信する基地局装置に実装される集積回路であって、
    　システム情報とＲＲＣ接続の確立を指示するメッセージ（ＲＲＣ接続セットアップメッセージ）とを送信する機能と、
    　ＲＲＣ接続確立の完了を通知するメッセージ（ＲＲＣ接続セットアップ完了メッセージ）を受信する機能と、
    　前記システム情報に含める情報を選択する機能を前記基地局装置に対して発揮させ、
    　前記端末装置がＥＵＴＲＡの無線技術でＥＰＣに接続しない場合に、第１の情報を蓄積していれば前記第１の情報が存在することを示す情報を前記ＲＲＣ接続セットアップ完了メッセージに含めることを前記端末装置に指示する情報を前記システム情報に含める
    　集積回路。     An integrated circuit implemented in a base station device that communicates with a terminal device,
    A function of transmitting system information and a message (RRC connection setup message) instructing establishment of RRC connection;
    A function of receiving a message (RRC connection setup completion message) notifying completion of RRC connection establishment;
    Make the base station device exert a function of selecting information to be included in the system information,
    In the case where the terminal device does not connect to the EPC by the EUTRA wireless technology, including the information indicating that the first information is present if the first information is stored in the RRC connection setup completion message is included. An integrated circuit that includes information instructing a terminal device in the system information.
PCT/JP2019/043111 2018-11-07 2019-11-01 Terminal device, base station device, communication method, and integrated circuit WO2020095851A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-209699 2018-11-07
JP2018209699A JP2020077962A (en) 2018-11-07 2018-11-07 Terminal device, base station device, method, and integrated circuit

Publications (1)

Publication Number Publication Date
WO2020095851A1 true WO2020095851A1 (en) 2020-05-14

Family

ID=70611828

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/043111 WO2020095851A1 (en) 2018-11-07 2019-11-01 Terminal device, base station device, communication method, and integrated circuit

Country Status (2)

Country Link
JP (1) JP2020077962A (en)
WO (1) WO2020095851A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022139667A1 (en) * 2020-12-23 2022-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Mobility history information enhancements with public land mobile network (plmn) identity

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (Release 15. V15.3.0)", 3GPP TS 36. 331, 27 September 2018 (2018-09-27), XP051519441, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/Specs/2018-09/Rel-15/36_series/36331-f30.zip> [retrieved on 20200110] *
HUAWEI ET AL.: "Remaining parts on common aspects", 3GPP TSG RAN WG2 #103 R2-1812723, 10 August 2018 (2018-08-10), XP051522317, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_103/Docs/R2-1812723.zip> *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022139667A1 (en) * 2020-12-23 2022-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Mobility history information enhancements with public land mobile network (plmn) identity

Also Published As

Publication number Publication date
JP2020077962A (en) 2020-05-21

Similar Documents

Publication Publication Date Title
US10383161B2 (en) Communication terminal device, communication device, communication network server and method for controlling
US11638140B2 (en) Method for transmitting and receiving signal related to switching access in wireless communication system, and device therefor
US9532400B2 (en) Radio communication devices and cellular wide area radio base station
CN107466481B (en) Method and apparatus for performing an offload procedure for WLAN-LTE integration and interworking in a wireless communication system
EP2908582B1 (en) Processing paging by a server managing mobility to prevent, in case of paging failure, loss of downlink data buffered in a serving gateway
US10341911B2 (en) Method for establishing plurality of PDN connections by means of CSIPTO
JP6518345B2 (en) Network node, wireless device and method thereof for handling radio access network (RAN) context information in a wireless communication network
US10694383B2 (en) Method and device for transmitting or receiving data by terminal in wireless communication system
US9913155B2 (en) Method and apparatus for handling traffic steering failure in wireless communication system
KR20180136912A (en) Method and network device for responding to request
JP2020511889A (en) Method and apparatus for indicating the type of bearer used for the next message in a wireless communication system
US20180077552A1 (en) Method and apparatus for changing, by terminal, priority in mcptt
EP3410814B1 (en) Method for initiating tracking area update, and user equipment
WO2019216809A1 (en) Methods and apparatuses for handling radio access network notification area (rna) update configuration upon reject
JP2016519503A (en) Method and apparatus for searching for a base station in a plurality of communication systems
US11184938B2 (en) Method and device for requesting RRC connection
CN110679167A (en) Method and apparatus for transceiving signals related to PSA addition based on multihoming in wireless communication system
WO2020263165A1 (en) Handling of idle measurement results in rrc_connected
WO2020162527A1 (en) Terminal device, base station device, method, and integrated circuit
WO2020095851A1 (en) Terminal device, base station device, communication method, and integrated circuit
US20180199187A1 (en) Method and apparatus for deleting ue information by single base station
WO2017003357A1 (en) Device identification in interworking wlan and wide-area cellular networks
CN113396636A (en) Terminal device, method and integrated circuit
CN113302977B (en) Terminal device, base station device, and communication method
EP4335179A2 (en) Managing ue measurements in an idle or inactive state

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19881149

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19881149

Country of ref document: EP

Kind code of ref document: A1