WO2020095851A1 - Dispositif terminal, dispositif de station de base, procédé de communication et circuit intégré - Google Patents

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

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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
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Prior art keywords
information
rrc connection
message
terminal device
base station
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English (en)
Japanese (ja)
Inventor
秀和 坪井
貴子 堀
山田　昇平
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Sharp Corp
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Sharp Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne une caractéristique se rapportant à un dispositif terminal, à un dispositif de station de base, à un procédé de communication, et à un circuit intégré, grâce à laquelle il est possible d'effectuer une communication efficacement. Lorsque le dispositif terminal se connecte à un cœur de paquet évolué (EPC) à l'aide d'une technologie sans fil d'accès radio terrestre universel évolué (EUTRA), le dispositif terminal, si des premières informations sont accumulées, comprend des informations indiquant la présence des premières informations en tant qu'informations à inclure dans un message d'achèvement d'établissement de connexion RRC. Lors de la connexion à un EPC ou à 5GC à l'aide d'une technologie sans fil EUTRA, le dispositif terminal, si des secondes informations sont accumulées, comprend des informations indiquant la présence des secondes informations en tant qu'informations à inclure dans le message d'achèvement d'établissement de connexion RRC, quel que soit le réseau central auquel le dispositif terminal se connecte.
PCT/JP2019/043111 2018-11-07 2019-11-01 Dispositif terminal, dispositif de station de base, procédé de communication et circuit intégré Ceased WO2020095851A1 (fr)

Applications Claiming Priority (2)

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JP2018-209699 2018-11-07
JP2018209699A JP2020077962A (ja) 2018-11-07 2018-11-07 端末装置、基地局装置、方法、および、集積回路

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WO2020095851A1 true WO2020095851A1 (fr) 2020-05-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022139667A1 (fr) * 2020-12-23 2022-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Améliorations d'informations d'historique de mobilité avec identité de réseau de téléphonie mobile terrestre public (plmn)

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022139667A1 (fr) * 2020-12-23 2022-06-30 Telefonaktiebolaget Lm Ericsson (Publ) Améliorations d'informations d'historique de mobilité avec identité de réseau de téléphonie mobile terrestre public (plmn)
EP4268502A1 (fr) * 2020-12-23 2023-11-01 Telefonaktiebolaget LM Ericsson (publ) Améliorations d'informations d'historique de mobilité avec identité de réseau de téléphonie mobile terrestre public (plmn)
EP4268502B1 (fr) * 2020-12-23 2025-11-05 Telefonaktiebolaget LM Ericsson (publ) Améliorations d'informations d'historique de mobilité avec identité de réseau de téléphonie mobile terrestre public (plmn)

Also Published As

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