WO2023047502A1 - Terminal, wireless communication system, and wireless communication method - Google Patents

Terminal, wireless communication system, and wireless communication method Download PDF

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Publication number
WO2023047502A1
WO2023047502A1 PCT/JP2021/034906 JP2021034906W WO2023047502A1 WO 2023047502 A1 WO2023047502 A1 WO 2023047502A1 JP 2021034906 W JP2021034906 W JP 2021034906W WO 2023047502 A1 WO2023047502 A1 WO 2023047502A1
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Prior art keywords
slice
information
network
cell
slices
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PCT/JP2021/034906
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French (fr)
Japanese (ja)
Inventor
天楊 閔
忠 内山
眞人 谷口
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株式会社Nttドコモ
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Priority to JP2023549232A priority Critical patent/JPWO2023047502A1/ja
Priority to PCT/JP2021/034906 priority patent/WO2023047502A1/en
Publication of WO2023047502A1 publication Critical patent/WO2023047502A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/26Reselection being triggered by specific parameters by agreed or negotiated communication parameters

Definitions

  • the present disclosure relates to a terminal, a wireless communication system, and a wireless communication method that support slices in which a network is divided into specific units.
  • the 3rd Generation Partnership Project (3GPP) has specified Long Term Evolution (LTE) and 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and Beyond 5G, 5G Evolution Alternatively, the next-generation specifications called 6G are also being developed.
  • LTE Long Term Evolution
  • NR New Radio
  • NG Next Generation
  • 6G next-generation specifications
  • the terminal (User Equipment, UE) has the ANR (Automatic Neighbor Relation) function, and the information of the neighboring cells of the UE, specifically, the NRT (Neighbor Relation Table) is automatically can be generated and updated dynamically. This makes it possible to achieve proper handover of the UE.
  • ANR Automatic Neighbor Relation
  • NRT Neighbor Relation Table
  • Non-Patent Document 1 an architecture (RAN Slicing) that divides the radio access network (RAN) into slices for each service such as a use case or business model is under consideration.
  • RAN Slicing slice-aware cell reselection and slice-specific random access channel (RACH) are being considered.
  • RACH slice-specific random access channel
  • the following disclosure is made in view of this situation, and aims to provide a terminal, a wireless communication system, and a wireless communication method that can appropriately share slice information regarding RAN Slicing.
  • control unit 240 that controls the association of neighboring cells
  • transmission unit (slice A terminal (UE 200) including a related information processing unit 230).
  • One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, the terminal comprising: a controller for controlling association of neighboring cells; and a transmitter for sending neighboring cell information including information on slices into which the network is divided into specific units to the network, wherein the radio base station receives the neighboring cell information.
  • a wireless communication system including a receiving unit (ANR function unit 120) that receives the ANR function unit 120.
  • a terminal controls neighboring cell association, and the terminal transmits neighboring cell information including information on slices in which the network is divided into specific units to the network; said network receiving said neighboring cell information.
  • control unit 240 that selects a cell that supports or does not support a slice divided by a specific unit of the network, and the slice requested in the selected cell is not supported.
  • the terminal (UE 200) includes a transmission unit (slice-related information processing unit 230) that transmits a report including slice-related information to the network.
  • One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, wherein the terminal selects a cell that supports or does not support a slice divided by a specific unit of the network. and a transmitting unit for transmitting a report containing relevant information of the slice to the network if the requested slice is not supported in the selected cell, wherein the radio base station comprises a receiving unit ( It is a wireless communication system including a UE connection control unit 130).
  • One aspect of the present disclosure is a step in which a terminal selects a cell in which a network supports or does not support slices divided into specific units; If not, a wireless communication method comprising: sending a report containing relevant information of said slice to a network; and said network receiving said report.
  • control unit 240 that executes a random access procedure specific to a slice in which the network is divided into specific units, and the random access procedure when the random access procedure fails.
  • a terminal UE 200 including a transmission section (slice-related information processing section 230) that transmits a report including information to the network.
  • One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, wherein the terminal includes a control unit that executes a random access procedure specific to slices in which the network is divided into specific units; and a transmitting unit that transmits a report including information related to the random access procedure to the network when the random access procedure fails, and the radio base station includes a receiving unit (UE connection control unit 130) that receives the report. ).
  • the terminal includes a control unit that executes a random access procedure specific to slices in which the network is divided into specific units; and a transmitting unit that transmits a report including information related to the random access procedure to the network when the random access procedure fails
  • the radio base station includes a receiving unit (UE connection control unit 130) that receives the report. ).
  • One aspect of the present disclosure is a step in which a terminal performs a random access procedure specific to a slice in which a network is divided into specific units;
  • a wireless communication method comprising: sending a report containing information to said network; and receiving said report by said network.
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system 10.
  • FIG. 2 is a functional block configuration diagram of the gNB100.
  • FIG. 3 is a functional block configuration diagram of UE200.
  • FIG. 4 is a diagram showing a configuration example of the ANR function unit 120.
  • FIG. 5 is a diagram illustrating a configuration example of a slice group.
  • FIG. 6 is a diagram illustrating an example of a Slice group ID reporting sequence according to Operation Example 1.
  • FIG. FIG. 7 is a diagram illustrating an example of signaling of slice-related information between nodes according to operation example 1;
  • FIG. 8 is a diagram illustrating an example of a communication sequence according to Operation Example 2;
  • FIG. 9 is a diagram illustrating an example of a communication sequence according to Operation Example 3;
  • FIG. 10 is a diagram showing a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 1)) according to operation example 4.
  • FIG. 11 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 2)) according to operation example 4.
  • FIG. FIG. 12 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by AMF and T-gNB) according to Operation Example 4.
  • FIG. 13 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by SN) according to Operation Example 4.
  • FIG. 14 is a diagram illustrating an example of a communication sequence according to Operation Example 5.
  • FIG. 15 is a diagram showing an example of the hardware configuration of gNB100 and UE200.
  • FIG. 16 is a diagram showing a configuration example of the vehicle 2001. As shown in FIG.
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system 10 according to the present embodiment.
  • the radio communication system 10 is a radio communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter NG-RAN 20 and terminals 200 (User Equipment 200, hereinafter UE 200).
  • NG-RAN 20 Next Generation-Radio Access Network 20
  • UE 200 User Equipment 200
  • the wireless communication system 10 may be a wireless communication system according to a system called Beyond 5G, 5G Evolution, or 6G.
  • NG-RAN 20 includes a radio base station 100 (hereinafter gNB 100).
  • gNB 100 radio base station 100
  • the specific configuration of the radio communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG.
  • the NG-RAN 20 actually includes multiple NG-RAN Nodes, specifically gNBs (or ng-eNBs), and is connected with a 5G-compliant core network 40 (which may be referred to as 5GC). .
  • Access and Mobility Management Function 50 (AMF50), which is included in the 5G system architecture and provides access and mobility management functions for UE 200, is connected to NG-RAN 20.
  • network elements other than the wireless communication system 10 for example, a private network (NPN: Non-Public Network), etc. may be connected to the core network 40 .
  • the NG-RAN 20 and core network 40 may provide multiple slices 45 that can be configured for each service such as a use case or business model.
  • a plurality of slices 45 may be grouped according to service content or the like.
  • the slice 45 may be configured (RAN Slicing) only by the NG-RAN 20 .
  • the slice 45 may be interpreted as a logical network in which the network is divided into specific units such as services.
  • slice 45-aware cell (re)selection and slice-specific random access channel (RACH) may be applied.
  • the gNB100 is an NR-compliant radio base station and performs NR-compliant radio communication with the UE200.
  • the gNB 100 may be composed of a CU (Central Unit) and a DU (Distributed Unit), and the DU may be separated from the CU and installed in a geographically different location.
  • CU Central Unit
  • DU Distributed Unit
  • gNB100 and UE200 control radio signals transmitted from multiple antenna elements to generate beams with higher directivity Massive MIMO, carrier aggregation (CA) that uses multiple component carriers (CC) in a bundle, And dual connectivity (DC) in which communication is performed simultaneously between the UE and multiple NG-RAN Nodes, etc., can be supported.
  • DC dual connectivity in which communication is performed simultaneously between the UE and multiple NG-RAN Nodes, etc.
  • NRT Neighbor Relation Table, NCRT (Neighbour Cell Relation Table), which is applied to handover (HO) of UE 200 to another cell and manages neighboring cell identification information (CGI: Cell Global Identifier), and may be called
  • CGI Cell Global Identifier
  • the NRT may be preconfigured manually, or an Automatic Neighbor Relation (ANR) function may be introduced to automatically associate neighbor cell information (CGI).
  • ANR Automatic Neighbor Relation
  • FIG. 2 is a functional block configuration diagram of gNB100.
  • FIG. 3 is a functional block configuration diagram of UE200. Note that FIGS. 2 and 3 only show main functional blocks related to the description of the embodiments, and that the gNB 100 and UE 200 have other functional blocks (eg, power supply units, etc.). . 2 and 3 show the functional block configurations of the gNB 100 and the UE 200, and please refer to FIG. 15 for the hardware configuration.
  • the gNB 100 includes a radio communication unit 110, an ANR function unit 120, a UE connection control unit 130 and a control unit 140.
  • the radio communication unit 110 transmits downlink signals (DL signals) according to NR.
  • Radio communication section 110 also receives an uplink signal (UL signal) according to NR.
  • the ANR function unit 120 provides functions related to ANR (Automatic Neighbor Relation). Specifically, the ANR function unit 120 can automatically associate information of neighboring cells.
  • FIG. 4 shows a configuration example of the ANR function unit 120.
  • the ANR function may consist of NCRT Management Function, Neighbor Removal Function and Neighbor Detection Function.
  • the Neighbor Cell Relation Table may consist of the NCR part (NCR, TCI (Transmission Configuration Indication)) and the O&M controlled attributes part (No Remove, No HO, No Xn).
  • NCR NCR
  • TCI Transmission Configuration Indication
  • O&M controlled attributes part No Remove, No HO, No Xn.
  • the ANR function unit 120 can receive neighboring cell information from the UE200.
  • the ANR function unit 120 may constitute a receiving unit that receives neighboring cell information.
  • the neighboring cell information may include information about the slice 45 (slice-related information).
  • the slice-related information may include identification information of the slice 45 or a group of slices 45 (Slice group ID).
  • the UE connection control unit 130 controls handover from the serving cell of the UE 200 to another neighboring cell (also called cell reselection, transition, etc.). Specifically, UE connection control section 130 can perform handover to a neighboring cell that satisfies handover conditions such as quality based on the NRT or ANR function.
  • the UE connection control unit 130 executes control related to the random access procedure (RA procedure) with the UE200.
  • RA procedure random access procedure
  • the UE connection control unit 130 can receive reports containing slice-related information.
  • the UE connection control unit 130 may configure a receiving unit that receives reports containing slice-related information.
  • the slice-related information included in the report includes information indicating that the slice 45 corresponding to the service requested by the UE 200 is not supported in the cell selected (or reselected) by the UE 200 (or the supported slice information) may be included.
  • the control unit 140 controls each functional block that configures the gNB100.
  • the control unit 140 can manage (generate, update, etc.) the Neighbor Cell Association (NCR) of the UE 200 and control the slices 45 that the UE 200 uses.
  • NCR Neighbor Cell Association
  • control unit 140 can manage the NCR considering the types of slices 45 supported by the cell, based on the slice-related information that the ANR function unit 120 receives from the UE 200.
  • control unit 140 may control handover to a cell that supports the slice 45 requested by the UE 200 based on the slice-related information that the UE connection control unit 130 has received from the UE 200.
  • the control unit 140 may exchange slice information supported by the gNB 100 with other radio base stations (gNBs). Specifically, the control unit 140 may share the slice-related information with nodes such as other radio base stations configuring the NG-RAN 20 . A specific example of sharing slice-related information will be described later.
  • Control channels may be PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI)), and Physical Broadcast Channel (PBCH) may be included.
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • RACH Random Access Channel
  • DCI Downlink Control Information
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • PBCH Physical Broadcast Channel
  • Data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel). Data may refer to data transmitted over a data channel.
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • layer 1 may be interpreted as including lower layers such as the physical layer.
  • Layer 3 is a higher layer than layer 1 .
  • the higher layers may include a radio link control layer (RLC), a packet data convergence protocol layer (PDCP), a radio resource control layer (RRC) and/or a medium access control layer (MAC ) may be positioned between the lower layer and the upper layer.
  • RLC radio link control layer
  • PDCP packet data convergence protocol layer
  • RRC radio resource control layer
  • MAC medium access control layer
  • the UE 200 includes a radio communication unit 210, a connection execution unit 220, a slice related information processing unit 230 and a control unit 240.
  • the radio communication unit 210 transmits an uplink signal (UL signal) according to NR. Also, the radio communication unit 210 receives an uplink signal (DL signal) according to NR.
  • UL signal uplink signal
  • DL signal uplink signal
  • connection execution unit 220 executes RA procedures with the network (gNB 100).
  • the connection execution unit 220 also executes handover from the serving cell to another neighboring cell.
  • the connection performing unit 220 can perform handover to a neighboring cell that satisfies handover conditions such as quality based on the NRT or ANR function.
  • the slice-related information processing unit 230 processes information (slice-related information) related to the slice 45 .
  • the slice-related information processing unit 230 can transmit neighboring cell information including information on the slice 45 to the network.
  • the slice-related information processing section 230 may configure a transmitting section that transmits neighboring cell information including information on the slice 45 .
  • the slice-related information processing unit 230 may transmit neighboring cell information including identification information of a slice (NSSAI: Network Slice Selection Assistance Information) or a group of slices (Slice group ID).
  • NSSAI Network Slice Selection Assistance Information
  • lice group ID a group of slices
  • the slice-related information processing unit 230 may transmit a report including information related to the slice (slice-related information) to the network. good.
  • the slice-related information processing section 230 may configure a transmitting section that transmits a report including slice-related information.
  • the slice-related information may simply indicate that the requested slice 45 is not supported, or may indicate the identification information (or Slice group ID) of the supported slice 45.
  • Slice-related information may be included in a report such as a measurement report (eg, logged MDT (Minimization of Drive Test) measurement report, Immediate MDT measurement report, or measurement report).
  • a measurement report eg, logged MDT (Minimization of Drive Test) measurement report, Immediate MDT measurement report, or measurement report.
  • other reports such as Failure report (for example, RLF report, connEstFailReport, or RACH report) are also acceptable.
  • the slice-related information is, for example, a plurality of slices 45 associated with priority. It may be configured by identification information (or Slice group ID) or the like.
  • the slice-related information processing unit 230 sends a specific measurement report (eg, logged MDT) including slice-related information to the network when a connection with the cell or another cell is established. may be sent.
  • a specific measurement report eg, logged MDT
  • the slice 45 requested in the selected cell may be determined based on the slice priority in the UE 200.
  • the slice-related information processing unit 230 may send a report including information related to the RA procedure to the network.
  • the slice-related information processing section 230 may constitute a transmission section that transmits a report including RA procedure-related information (RA procedure-related information).
  • the RA procedure-related information may include radio resources used for executing the RA procedure.
  • the radio resource may include a 2-step slice specific RACH resource or a 4-step slice specific RACH resource.
  • the RACH resource may be interpreted as a radio resource specific to a particular slice 45 (ie not used in other slices 45).
  • the RA procedure-related information indicates that the RA procedure specific to the slice 45 (slice specific RACH) has fallen back to the normal RA procedure, and/or that the RA procedure specific to the slice 45 and the RA procedure of a specific service are different. May include collision.
  • Specific services include, for example, MPS (Multimedia Priority Service) or MCS (Mission critical service).
  • the control unit 240 controls each functional block that configures the UE200.
  • the control unit 240 controls the association of neighboring cells formed in the neighborhood of the serving cell of the UE 200 .
  • the control unit 240 can execute an RA procedure (slice specific RACH) specific to the slice 45.
  • a slice specific RACH may include a 2-step RACH and a 4-step RACH as well as a normal RACH.
  • messages In the 2-step RACH, messages (MSG) A and B (Random Access Preamble, Contention Resolution/Random Access Response (RAR)) may be transmitted and received.
  • MSG1-4 Random Access Preamble, Random Access Response, Scheduled Transmission, Contention Resolution
  • MSG1-4 Random Access Preamble, Random Access Response, Scheduled Transmission, Contention Resolution
  • the control unit 240 can select cells that support or do not support the slice 45. That is, the control unit 240 may select a cell that supports the type of slice 45 requested by the UE 200, or may select a cell that does not support the type of slice 45 requested by the UE 200. good. If the UE 200 selects a cell that does not support the type of slice 45 requested, slice related information may be transmitted, as described above.
  • control unit 240 may transmit the slice-related information of the slice 45 to be accessed to the network.
  • the slice-related information may be included in ConnEstFailureReport, for example.
  • NSSAI Network-Specific Function
  • SIB System Information Block
  • FIG. 5 shows a configuration example of a slice group. As shown in FIG. 5, a slice group may consist of multiple NSSAIs.
  • slice specific RACH In the contention based RACH, the slice specific RACH reserves separate RACH resources for high priority slices and avoids collisions with low priority or legacy RACHs other than slice specific RACH.
  • RACH resource isolation For slice specific RACH, it is desirable to secure RACH resources in high-priority slices in order to connect to the network more quickly in URLLC (Ultra-Reliable and Low Latency Communications) services at factories. Specifically, some resources in Contention based RACH resources are reserved for high priority slices. May also be called RACH resource isolation.
  • ⁇ Configure RACH resource pool for each slice (or slice group) and notify UE200 ⁇ Set RACH parameter to UE200 for each slice (or slice group) can be set.
  • Operation example 1 The existing ANR function has a problem that the UE 200 cannot report information on slices supported by cells.
  • the UE 200 may include Slice group ID information in a specific information element (for example, CGIInfoNR) of the RRC layer.
  • FIG. 6 shows an example of a Slice group ID reporting sequence according to Operation Example 1.
  • UE 200 can connect to cell A and report neighbor cell information.
  • UE 200 receives SIB from cell B via BCCH (Broadcast Control Channel).
  • BCCH Broadcast Control Channel
  • Cell B may support RAN Slicing.
  • the UE 200 may include a slice group ID when reporting neighbor cell information of cell B to cell A (serving cell).
  • the Slice group ID By incorporating the Slice group ID into the NRT, it is possible to discover and select an appropriate transition destination cell in order to support the slice 45 used in the handover source cell (source cell).
  • information on slices supported by the cell may be signaled between nodes that configure the network.
  • FIG. 7 shows an example of signaling of slice-related information between nodes according to operation example 1.
  • FIG. 7 under the same AMF 50, between gNB1 and gNB2 that do not have Xn links, information on slices to be supported may be signaled.
  • the messages used for signaling are only examples, and other messages may be used as long as they are messages that are transmitted and received between the nodes.
  • FIG. 8 shows an example of a communication sequence according to Operation Example 2. As shown in FIG. 8, UE 200 may record that the slice to be accessed with logged MDT is not supported by the cell.
  • the cell ID, unsupported slice information, and slice group ID supported by the cell are reported to the network by logged MDT measurement report. good. These pieces of information may be collectively called slice-related information.
  • the slice to be accessed may be the slice (or a list of slices) with the highest slice priority notified from the UE NAS (Non-Access Stratum) to the AS (Access Stratum).
  • the slice (or list of slices) with the highest slice priority stored (held) by UE 200 may be stored ( It can also be a list of slices that hold
  • Slice based cell reselection may be executed, for example, according to the following procedure.
  • ⁇ Step 0 NAS layer at UE provides slice information to AS layer at UE, including slice priorities.
  • ⁇ Step 1 AS sorts slices in priority order starting with highest priority slice.
  • ⁇ Step 2 Select slices in priority order starting with the highest priority slice.
  • ⁇ Step 3 For the selected slice assign priority to frequencies received from network.
  • ⁇ Step 4 Starting with the highest priority frequency, perform measurements (same as legacy).
  • ⁇ Step 5 If the highest ranked cell is suitable (as defined in 38.304) and supports the selected slice in step 2 then camp on the cell and exit this sequence of operation.
  • ⁇ Step 6 If there are remaining frequencies then go back to step 4.
  • ⁇ Step 7 FFS: If the end of the slice list has not been reached go back to step 2.
  • ⁇ Step 8 Perform legacy cell reselection.
  • FIG. 9 shows an example of a communication sequence according to Operation Example 3.
  • the UE 200 may include information (NSSAI) of the slice to be accessed in the ConnEstFailureReport.
  • NSSAI information of the slice to be accessed in the ConnEstFailureReport.
  • ConnEstFailureReport is just an example, and other reports (may be dedicated reports or may be included in other reports such as radio link failure (RLF)) as long as information on the relevant slice can be reported.
  • RLF radio link failure
  • the occurrence of a connection establishment failure when the UE 200 attempts to access a high-priority slice is an important event for the operator of the wireless communication system 10, so it can be useful information for improving the quality of the area including the cell.
  • Slice remapping means that during handover of UE 200 the slice that the source cell (source node) was mapping is mapped to another slice due to reasons such as not being supported by the target cell (target node). you can
  • the reason for slice remapping failure may be communicated to the source node using a specific message.
  • FIG. 10 shows a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 1)) according to operation example 4.
  • FIG. 11 shows a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 2)) according to operation example 4.
  • FIG. 12 shows a sequence example of slice remapping (Slice re-mapping decided by AMF and T-gNB) according to Operation Example 4.
  • FIG. 13 shows an example of a slice remapping sequence (Slice re-mapping decided by SN) according to Operation Example 4.
  • the target node cannot support some or all of the slices (or the list of slices) of the PDU session resource to be setup list contained in the HO request msg. sent from the source node, and the target node (T- gNB) decides slice remapping, the following information may be notified to the source node.
  • ⁇ In the case of NG handover when some or all of the slices of the PDU Session Resource List included in the handover required msg. cannot be supported from the source node to AMF, and AMF or target node decides slice remapping, the following information may be notified to the source node.
  • node may be notified.
  • notification contents described above may be included in the messages for the source node (S-gNB) shown in FIGS. shown).
  • FIG. 14 shows an example of a communication sequence according to Operation Example 5.
  • FIG. 14 if slice-specific RACH fails, the RACH report may report RA procedure-related information including at least any of the following.
  • ⁇ Slice ID (NSSAI) or Slice group ID that UE200 tries to access Information on slice groups supported by the cell may be included in the RACH report.
  • the target cell cannot support the slice used in the source cell at the time of handover of the UE 200, and information indicating whether or not the slice can be remapped is notified to the source node, thereby ensuring service continuity due to handover. information to help maintain
  • a slice is a logical (virtual) network divided by service units such as use cases or business models, Such a network may be called by another name.
  • configure, activate, update, indicate, enable, specify, and select may be read interchangeably. good.
  • link, associate, correspond, and map may be read interchangeably to allocate, assign, monitor. , map, may also be read interchangeably.
  • precoding "precoding weight”
  • QCL quadsi-co-location
  • TCI state Transmission Configuration Indication state
  • spatialal patial relation
  • spatialal domain filter "transmission power”
  • phase rotation "antenna port
  • antenna port group "layer”
  • number of layers Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, “panel” are interchangeable. can be used as intended.
  • each functional block may be implemented using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separate devices (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter.
  • the implementation method is not particularly limited.
  • FIG. 15 is a diagram showing an example of the hardware configuration of the device.
  • the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the term "apparatus” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the device may be configured to include one or more of each device shown in the figure, or may be configured without some of the devices.
  • Each functional block of the device (see Fig. 2.3) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • each function of the device is implemented by causing the processor 1001 to perform calculations, controlling communication by the communication device 1004, and controlling the It is realized by controlling at least one of data reading and writing in 1002 and storage 1003 .
  • a processor 1001 operates an operating system and controls the entire computer.
  • the processor 1001 may be configured with a central processing unit (CPU) including interfaces with peripheral devices, a controller, arithmetic units, registers, and the like.
  • CPU central processing unit
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the various processes described above may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially.
  • Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be
  • ROM Read Only Memory
  • EPROM Erasable Programmable ROM
  • EEPROM Electrically Erasable Programmable ROM
  • RAM Random Access Memory
  • the memory 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the memory 1002 can store programs (program code), software modules, etc. capable of executing a method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disc such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu-ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
  • Storage 1003 may also be referred to as an auxiliary storage device.
  • the recording medium described above may be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003 .
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc., for realizing at least one of frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (eg, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the device includes hardware such as a microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • the notification of information may include physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or combinations thereof, and RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, RRC Connection Reconfiguration message, or the like.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC signaling e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or combinations thereof
  • RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, R
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • Future Radio Access FAA
  • New Radio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX®
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth®, other suitable systems, and/or next-generation systems enhanced therefrom.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • a specific operation that is performed by a base station in the present disclosure may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal may be performed by the base station and other network nodes other than the base station (e.g. MME or S-GW, etc., but not limited to).
  • MME or S-GW network nodes
  • the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information, signals can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
  • Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input and output information may be overwritten, updated, or appended. The output information may be deleted. The entered information may be transmitted to other devices.
  • the determination may be made by a value represented by one bit (0 or 1), by a true/false value (Boolean: true or false), or by numerical comparison (for example, a predetermined value).
  • notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the Software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to access websites, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • the channel and/or symbols may be signaling.
  • a signal may also be a message.
  • a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
  • radio resources may be indexed.
  • base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
  • a base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area corresponding to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head: RRH) can also provide communication services.
  • a base station subsystem e.g., a small indoor base station (Remote Radio)
  • Head: RRH can also provide communication services.
  • cell refers to part or all of the coverage area of at least one of a base station and base station subsystem that provides communication services in this coverage.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile body may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile body (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same).
  • communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • the mobile station may have the functions that the base station has.
  • words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be read as side channels.
  • a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be a fixed time length (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, transmission and reception specific filtering operations performed by the receiver in the frequency domain, specific windowing operations performed by the transceiver in the time domain, and/or the like.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • number of symbols per TTI radio frame structure
  • transmission and reception specific filtering operations performed by the receiver in the frequency domain specific windowing operations performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) that is transmitted in time units larger than a minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
  • one subframe may be called a transmission time interval (TTI)
  • TTI transmission time interval
  • multiple consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, may be a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms may be Note that the unit representing the TTI may be called a slot, minislot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
  • the TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, codewords, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum scheduling time unit.
  • the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • TTI that is shorter than a regular TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and so on.
  • long TTI for example, normal TTI, subframe, etc.
  • short TTI for example, shortened TTI, etc.
  • a TTI having a TTI length greater than or equal to this value may be read as a replacement.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of neurology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on neumerology.
  • the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
  • One TTI, one subframe, etc. may each consist of one or more resource blocks.
  • One or more RBs are physical resource blocks (Physical RB: PRB), sub-carrier groups (SCG), resource element groups (REG), PRB pairs, RB pairs, etc. may be called.
  • PRB Physical resource blocks
  • SCG sub-carrier groups
  • REG resource element groups
  • PRB pairs RB pairs, etc.
  • a resource block may be composed of one or more resource elements (Resource Element: RE).
  • RE resource elements
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a Bandwidth Part (which may also be called a Bandwidth Part) represents a subset of contiguous common resource blocks (RBs) for a neumerology in a carrier. good.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP).
  • One or more BWPs may be configured in one carrier for a UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP.
  • BWP bitmap
  • radio frames, subframes, slots, minislots and symbols described above are only examples.
  • the number of subframes included in a radio frame the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc.
  • CP cyclic prefix
  • connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • two elements are defined using at least one of one or more wires, cables and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions, and the like.
  • the reference signal can also be abbreviated as Reference Signal (RS), and may also be called Pilot depending on the applicable standard.
  • RS Reference Signal
  • any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, references to first and second elements do not imply that only two elements may be employed therein or that the first element must precede the second element in any way.
  • determining and “determining” used in this disclosure may encompass a wide variety of actions.
  • “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
  • "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
  • judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
  • judgment and “decision” may include considering that some action is “judgment” and “decision”.
  • judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
  • FIG. 16 shows a configuration example of a vehicle 2001.
  • a vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, an electronic control unit 2010, It has various sensors 2021 to 2029, an information service unit 2012 and a communication module 2013.
  • the driving unit 2002 is composed of, for example, an engine, a motor, or a hybrid of the engine and the motor.
  • the steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels and rear wheels based on the operation of the steering wheel operated by the user.
  • a steering wheel also referred to as a steering wheel
  • the electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010 .
  • the electronic control unit 2010 may be called an ECU (Electronic Control Unit).
  • the signals from various sensors 2021 to 2028 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, and the front wheel obtained by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
  • the information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. It consists of an ECU and The information service unit 2012 uses information acquired from an external device via the communication module 2013 and the like to provide passengers of the vehicle 1 with various multimedia information and multimedia services.
  • Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g. GNSS), map information (e.g. high-definition (HD) map, autonomous vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors to prevent accidents and reduce the driver's driving load. and one or more ECUs that control these devices.
  • the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.
  • the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via communication ports.
  • the communication module 2013 communicates with the vehicle 2001 through a communication port 2033 a driving unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, Data is sent and received between axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in electronic control unit 2010, and sensors 2021-2028.
  • the communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from an external device via wireless communication.
  • Communication module 2013 may be internal or external to electronic control 2010 .
  • the external device may be, for example, a base station, a mobile station, or the like.
  • the communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to the external device via wireless communication.
  • the communication module 2013 receives, from the electronic control unit 2010, the rotation speed signals of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signals of the front and rear wheels obtained by the air pressure sensor 2023, and the vehicle speed sensor. 2024, the acceleration signal obtained by the acceleration sensor 2025, the accelerator pedal depression amount signal obtained by the accelerator pedal sensor 2029, the brake pedal depression amount signal obtained by the brake pedal sensor 2026, and the shift lever.
  • a shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.
  • the communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices and displays it on the information service unit 2012 provided in the vehicle. Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 . Based on the information stored in the memory 2032, the microprocessor 2031 controls the driving unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the left and right front wheels 2007, and the left and right rear wheels provided in the vehicle 2001. 2008, axle 2009, sensors 2021-2028, etc. may be controlled.
  • various information traffic information, signal information, inter-vehicle information, etc.

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Abstract

This terminal controls the association of neighbor cells and transmits, to a network, neighbor cell information that includes information on slices into which the network is divided by a specific unit.

Description

端末、無線通信システム及び無線通信方法Terminal, wireless communication system and wireless communication method
 本開示は、ネットワークが特定の単位で分割されたスライスに対応した端末、無線通信システム及び無線通信方法に関する。 The present disclosure relates to a terminal, a wireless communication system, and a wireless communication method that support slices in which a network is divided into specific units.
 3rd Generation Partnership Project(3GPP)は、Long Term Evolution(LTE)、及び5th generation mobile communication system(5G、New Radio(NR)またはNext Generation(NG)とも呼ばれる)を仕様化し、さらに、Beyond 5G、5G Evolution或いは6Gと呼ばれる次世代の仕様化も進めている。 The 3rd Generation Partnership Project (3GPP) has specified Long Term Evolution (LTE) and 5th generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)), and Beyond 5G, 5G Evolution Alternatively, the next-generation specifications called 6G are also being developed.
 3GPPのRelease 15(NR)以降では、端末(User Equipment, UE)は、ANR(Automatic Neighbour Relation)機能を有し、UEの近隣セルの情報、具体的には、NRT(Neighbour Relation Table)を自動的に生成及び更新できる。これにより、UEの適切なハンドオーバーを実現できる。 Starting with Release 15 (NR) of 3GPP, the terminal (User Equipment, UE) has the ANR (Automatic Neighbor Relation) function, and the information of the neighboring cells of the UE, specifically, the NRT (Neighbor Relation Table) is automatically can be generated and updated dynamically. This makes it possible to achieve proper handover of the UE.
 また、3GPPのRelease 17では、無線アクセスネットワーク(RAN)をユースケースまたはビジネスモデルなどのサービス単位でスライスに分割するアーキテクチャ(RAN Slicing)が検討されている(非特許文献1)。例えば、RAN Slicingでは、スライスを意識したセル再選択、及びスライス固有のランダムアクセスチャネル(RACH)が検討されている。 Also, in Release 17 of 3GPP, an architecture (RAN Slicing) that divides the radio access network (RAN) into slices for each service such as a use case or business model is under consideration (Non-Patent Document 1). For example, in RAN Slicing, slice-aware cell reselection and slice-specific random access channel (RACH) are being considered.
 しかしながら、現状の3GPPの仕様では、UE及びネットワークは、RAN Slicingに関して、スライスの情報を適切に共有することが難しい問題がある。このため、スライスに対応したSelf-Organizing Networks(SON)の構築も難しい。 However, with the current 3GPP specifications, it is difficult for UEs and networks to appropriately share slice information regarding RAN Slicing. For this reason, it is also difficult to build Self-Organizing Networks (SON) that support slices.
 そこで、以下の開示は、このような状況に鑑みてなされたものであり、RAN Slicingに関して、スライスの情報を適切に共有し得る端末、無線通信システム及び無線通信方法の提供を目的とする。 Therefore, the following disclosure is made in view of this situation, and aims to provide a terminal, a wireless communication system, and a wireless communication method that can appropriately share slice information regarding RAN Slicing.
 本開示の一態様は、近隣セルの関連付けを制御する制御部(制御部240)と、ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信する送信部(スライス関連情報処理部230)とを備える端末(UE200)である。 One aspect of the present disclosure is a control unit (control unit 240) that controls the association of neighboring cells, and a transmission unit (slice A terminal (UE 200) including a related information processing unit 230).
 本開示の一態様は、端末と、無線基地局とを含む無線通信システムであって、前記端末は、
 近隣セルの関連付けを制御する制御部と、ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信する送信部とを備え、前記無線基地局は、前記近隣セル情報を受信する受信部(ANR機能部120)を備える無線通信システムである。
One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, the terminal comprising:
a controller for controlling association of neighboring cells; and a transmitter for sending neighboring cell information including information on slices into which the network is divided into specific units to the network, wherein the radio base station receives the neighboring cell information. is a wireless communication system including a receiving unit (ANR function unit 120) that receives the
 本開示の一態様は、端末が、近隣セルの関連付けを制御するステップと、前記端末が、ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信するステップと、前記ネットワークが、前記近隣セル情報を受信するステップとを含む無線通信方法である。 One aspect of the present disclosure is that a terminal controls neighboring cell association, and the terminal transmits neighboring cell information including information on slices in which the network is divided into specific units to the network; said network receiving said neighboring cell information.
 本開示の一態様は、ネットワークが特定の単位で分割されたスライスをサポートするセルまたはサポートしないセルを選択する制御部(制御部240)と、選択したセルにおいて要求する前記スライスがサポートされていない場合、前記スライスの関連情報を含む報告をネットワークに送信する送信部(スライス関連情報処理部230)とを備える端末(UE200)である。 One aspect of the present disclosure is a control unit (control unit 240) that selects a cell that supports or does not support a slice divided by a specific unit of the network, and the slice requested in the selected cell is not supported. In this case, the terminal (UE 200) includes a transmission unit (slice-related information processing unit 230) that transmits a report including slice-related information to the network.
 本開示の一態様は、端末と、無線基地局とを含む無線通信システムであって、前記端末は、ネットワークが特定の単位で分割されたスライスをサポートするセルまたはサポートしないセルを選択する制御部と、選択したセルにおいて要求する前記スライスがサポートされていない場合、前記スライスの関連情報を含む報告をネットワークに送信する送信部とを備え、前記無線基地局は、前記報告を受信する受信部(UE接続制御部130)を備える無線通信システムである。 One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, wherein the terminal selects a cell that supports or does not support a slice divided by a specific unit of the network. and a transmitting unit for transmitting a report containing relevant information of the slice to the network if the requested slice is not supported in the selected cell, wherein the radio base station comprises a receiving unit ( It is a wireless communication system including a UE connection control unit 130).
 本開示の一態様は、端末が、ネットワークが特定の単位で分割されたスライスをサポートするセルまたはサポートしないセルを選択するステップと、前記端末が、選択したセルにおいて要求する前記スライスがサポートされていない場合、前記スライスの関連情報を含む報告をネットワークに送信するステップと、前記ネットワークが、前記報告を受信するステップとを含む無線通信方法である。 One aspect of the present disclosure is a step in which a terminal selects a cell in which a network supports or does not support slices divided into specific units; If not, a wireless communication method comprising: sending a report containing relevant information of said slice to a network; and said network receiving said report.
 本開示の一態様は、ネットワークが特定の単位で分割されたスライスに固有のランダムアクセス手順を実行する制御部(制御部240)と、前記ランダムアクセス手順が失敗した場合、前記ランダムアクセス手順の関連情報を含む報告を前記ネットワークに送信する送信部(スライス関連情報処理部230)とを備える端末(UE200)である。 One aspect of the present disclosure is a control unit (control unit 240) that executes a random access procedure specific to a slice in which the network is divided into specific units, and the random access procedure when the random access procedure fails. A terminal (UE 200) including a transmission section (slice-related information processing section 230) that transmits a report including information to the network.
 本開示の一態様は、端末と、無線基地局とを含む無線通信システムであって、前記端末は、ネットワークが特定の単位で分割されたスライスに固有のランダムアクセス手順を実行する制御部と、前記ランダムアクセス手順が失敗した場合、前記ランダムアクセス手順の関連情報を含む報告を前記ネットワークに送信する送信部とを備え、前記無線基地局は、前記報告を受信する受信部(UE接続制御部130)を備える無線通信システムである。 One aspect of the present disclosure is a wireless communication system including a terminal and a wireless base station, wherein the terminal includes a control unit that executes a random access procedure specific to slices in which the network is divided into specific units; and a transmitting unit that transmits a report including information related to the random access procedure to the network when the random access procedure fails, and the radio base station includes a receiving unit (UE connection control unit 130) that receives the report. ).
 本開示の一態様は、端末が、ネットワークが特定の単位で分割されたスライスに固有のランダムアクセス手順を実行するステップと、前記端末が、ランダムアクセス手順が失敗した場合、前記ランダムアクセス手順の関連情報を含む報告を前記ネットワークに送信するステップと、前記ネットワークが、前記報告を受信するステップと
を含む無線通信方法である。
One aspect of the present disclosure is a step in which a terminal performs a random access procedure specific to a slice in which a network is divided into specific units; A wireless communication method comprising: sending a report containing information to said network; and receiving said report by said network.
図1は、無線通信システム10の全体概略構成図である。FIG. 1 is an overall schematic configuration diagram of a radio communication system 10. As shown in FIG. 図2は、gNB100の機能ブロック構成図である。FIG. 2 is a functional block configuration diagram of the gNB100. 図3は、UE200の機能ブロック構成図である。FIG. 3 is a functional block configuration diagram of UE200. 図4は、ANR機能部120の構成例を示す図である。FIG. 4 is a diagram showing a configuration example of the ANR function unit 120. As shown in FIG. 図5は、スライスグループの構成例を示す図である。FIG. 5 is a diagram illustrating a configuration example of a slice group. 図6は、動作例1に係るSlice group IDの報告シーケンスの例を示す図である。FIG. 6 is a diagram illustrating an example of a Slice group ID reporting sequence according to Operation Example 1. FIG. 図7は、動作例1に係るノード間におけるスライス関連情報のシグナリング例を示す図である。FIG. 7 is a diagram illustrating an example of signaling of slice-related information between nodes according to operation example 1; 図8は、動作例2に係る通信シーケンスの例を示す図である。FIG. 8 is a diagram illustrating an example of a communication sequence according to Operation Example 2; 図9は、動作例3に係る通信シーケンスの例を示す図である。FIG. 9 is a diagram illustrating an example of a communication sequence according to Operation Example 3; 図10は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by T-gNB(例1))を示す図である。FIG. 10 is a diagram showing a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 1)) according to operation example 4. In FIG. 図11は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by T-gNB(例2))を示す図である。FIG. 11 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 2)) according to operation example 4. FIG. 図12は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by AMF and T-gNB)を示す図である。FIG. 12 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by AMF and T-gNB) according to Operation Example 4. In FIG. 図13は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by SN)を示す図である。FIG. 13 is a diagram illustrating a sequence example of slice remapping (Slice re-mapping decided by SN) according to Operation Example 4. In FIG. 図14は、動作例5に係る通信シーケンスの例を示す図である。14 is a diagram illustrating an example of a communication sequence according to Operation Example 5. FIG. 図15は、gNB100及びUE200のハードウェア構成の一例を示す図である。FIG. 15 is a diagram showing an example of the hardware configuration of gNB100 and UE200. 図16は、車両2001の構成例を示す図である。FIG. 16 is a diagram showing a configuration example of the vehicle 2001. As shown in FIG.
 以下、実施形態を図面に基づいて説明する。なお、同一の機能や構成には、同一または類似の符号を付して、その説明を適宜省略する。 Hereinafter, embodiments will be described based on the drawings. The same or similar reference numerals are given to the same functions and configurations, and the description thereof will be omitted as appropriate.
 (1)無線通信システムの全体概略構成
 図1は、本実施形態に係る無線通信システム10の全体概略構成図である。無線通信システム10は、5G New Radio(NR)に従った無線通信システムであり、Next Generation-Radio Access Network 20(以下、NG-RAN20、及び端末200(User Equipment 200、以下、UE200)を含む。
(1) Overall Schematic Configuration of Radio Communication System FIG. 1 is an overall schematic configuration diagram of a radio communication system 10 according to the present embodiment. The radio communication system 10 is a radio communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter NG-RAN 20 and terminals 200 (User Equipment 200, hereinafter UE 200).
 なお、無線通信システム10は、Beyond 5G、5G Evolution或いは6Gと呼ばれる方式に従った無線通信システムでもよい。 Note that the wireless communication system 10 may be a wireless communication system according to a system called Beyond 5G, 5G Evolution, or 6G.
 NG-RAN20は、無線基地局100(以下、gNB100)を含む。なお、gNB及びUEの数を含む無線通信システム10の具体的な構成は、図1に示した例に限定されない。 NG-RAN 20 includes a radio base station 100 (hereinafter gNB 100). Note that the specific configuration of the radio communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG.
 NG-RAN20は、実際には複数のNG-RAN Node、具体的には、gNB(またはng-eNB)を含み、5Gに従ったコアネットワーク40(5GCと呼ばれてもよい)と接続される。NG-RAN20には、5Gのシステムアーキテクチャに含まれ、UE200のアクセス及びモビリティの管理機能を提供するAccess and Mobility Management Function 50(AMF50)などが接続される。また、コアネットワーク40には、無線通信システム10以外のネットワーク要素(例えば、プライベートネットワーク(NPN:Non-Public Network)など)が接続されてよい。 The NG-RAN 20 actually includes multiple NG-RAN Nodes, specifically gNBs (or ng-eNBs), and is connected with a 5G-compliant core network 40 (which may be referred to as 5GC). . Access and Mobility Management Function 50 (AMF50), which is included in the 5G system architecture and provides access and mobility management functions for UE 200, is connected to NG-RAN 20. Also, network elements other than the wireless communication system 10 (for example, a private network (NPN: Non-Public Network), etc.) may be connected to the core network 40 .
 NG-RAN20及びコアネットワーク40は、ユースケースまたはビジネスモデルなどのサービス単位に構成可能な複数のスライス45を提供してよい。複数のスライス45は、サービス内容などに応じてグループ化されてよい。また、スライス45は、NG-RAN20のみによって構成(RAN Slicing)されてもよい。スライス45は、ネットワークが、サービスなどの特定の単位で分割された論理的なネットワークと解釈されてもよい。 The NG-RAN 20 and core network 40 may provide multiple slices 45 that can be configured for each service such as a use case or business model. A plurality of slices 45 may be grouped according to service content or the like. Also, the slice 45 may be configured (RAN Slicing) only by the NG-RAN 20 . The slice 45 may be interpreted as a logical network in which the network is divided into specific units such as services.
 RAN Slicingでは、スライス45を意識したセル(再)選択、及びスライス固有のランダムアクセスチャネル(RACH)が適用されてもよい。 In RAN Slicing, slice 45-aware cell (re)selection and slice-specific random access channel (RACH) may be applied.
 gNB100は、NRに従った無線基地局であり、UE200とNRに従った無線通信を実行する。なお、gNB100は、CU(Central Unit)とDU(Distributed Unit)とによって構成されてもよく、DUは、CUから分離して地理的に異なる場所に設置されてもよい。 The gNB100 is an NR-compliant radio base station and performs NR-compliant radio communication with the UE200. Note that the gNB 100 may be composed of a CU (Central Unit) and a DU (Distributed Unit), and the DU may be separated from the CU and installed in a geographically different location.
 gNB100及びUE200は、複数のアンテナ素子から送信される無線信号を制御することによって、より指向性の高いビームを生成するMassive MIMO、複数のコンポーネントキャリア(CC)を束ねて用いるキャリアアグリゲーション(CA)、及びUEと複数のNG-RAN Nodeそれぞれとの間において同時に通信を行うデュアルコネクティビティ(DC)などに対応することができる。 gNB100 and UE200 control radio signals transmitted from multiple antenna elements to generate beams with higher directivity Massive MIMO, carrier aggregation (CA) that uses multiple component carriers (CC) in a bundle, And dual connectivity (DC) in which communication is performed simultaneously between the UE and multiple NG-RAN Nodes, etc., can be supported.
 無線通信システム10では、UE200の他セルへのハンドオーバー(HO)に適用され、近隣セルの識別情報(CGI:Cell Global Identifier)を管理するNRT(Neighbor Relation Table、NCRT(Neighbour Cell Relation Table)と呼ばれてもよい)が用いられてよい。NRTは、手動で内容が予め設定されてもよいが、自動的に近隣セルの情報(CGI)を関連付けるANR(Automatic Neighbour Relation)機能が導入されてよい。 In the wireless communication system 10, NRT (Neighbor Relation Table, NCRT (Neighbour Cell Relation Table), which is applied to handover (HO) of UE 200 to another cell and manages neighboring cell identification information (CGI: Cell Global Identifier), and may be called) may be used. The NRT may be preconfigured manually, or an Automatic Neighbor Relation (ANR) function may be introduced to automatically associate neighbor cell information (CGI).
 (2)無線通信システムの機能ブロック構成
 次に、無線通信システム10の機能ブロック構成について説明する。具体的には、gNB100及びUE200の機能ブロック構成について説明する。
(2) Functional Block Configuration of Radio Communication System Next, the functional block configuration of the radio communication system 10 will be described. Specifically, functional block configurations of gNB 100 and UE 200 will be described.
 図2は、gNB100の機能ブロック構成図である。図3は、UE200の機能ブロック構成図である。なお、図2及び図3では、実施形態の説明に関連する主な機能ブロックのみが示されており、gNB100及びUE200は、他の機能ブロック(例えば、電源部など)を有することに留意されたい。また、図2,3は、gNB100及びUE200の機能的なブロック構成について示しており、ハードウェア構成については、図15を参照されたい。 Fig. 2 is a functional block configuration diagram of gNB100. FIG. 3 is a functional block configuration diagram of UE200. Note that FIGS. 2 and 3 only show main functional blocks related to the description of the embodiments, and that the gNB 100 and UE 200 have other functional blocks (eg, power supply units, etc.). . 2 and 3 show the functional block configurations of the gNB 100 and the UE 200, and please refer to FIG. 15 for the hardware configuration.
 (2.1)gNB100
 図2に示すように、gNB100は、無線通信部110、ANR機能部120、UE接続制御部130及び制御部140を備える。
(2.1) gNB100
As shown in FIG. 2, the gNB 100 includes a radio communication unit 110, an ANR function unit 120, a UE connection control unit 130 and a control unit 140.
 無線通信部110は、NRに従った下りリンク信号(DL信号)を送信する。また、無線通信部110は、NRに従った上りリンク信号(UL信号)を受信する。 The radio communication unit 110 transmits downlink signals (DL signals) according to NR. Radio communication section 110 also receives an uplink signal (UL signal) according to NR.
 ANR機能部120は、ANR(Automatic Neighbour Relation)に関する機能を提供する。具体的には、ANR機能部120は、近隣セルの情報を自動的に関連付けることができる。 The ANR function unit 120 provides functions related to ANR (Automatic Neighbor Relation). Specifically, the ANR function unit 120 can automatically associate information of neighboring cells.
 図4は、ANR機能部120の構成例を示す。図4に示すように、ANR機能部(ANR function)は、NCRT Management Function、Neighbour Removal Function及びNeighbour Detection Functionによって構成されてよい。 4 shows a configuration example of the ANR function unit 120. FIG. As shown in FIG. 4, the ANR function may consist of NCRT Management Function, Neighbor Removal Function and Neighbor Detection Function.
 Neighbour Cell Relation Table(NCRT)は、NCRの部分(NCR, TCI (Transmission Configuration Indication))と、O&M controlled attributesの部分(No Remove, No HO, No Xn)によって構成されてよい。なお、このようなANR機能は、例えば、3GPP TS38.300 15.3.3.1章の規定内容に従ってもよい。 The Neighbor Cell Relation Table (NCRT) may consist of the NCR part (NCR, TCI (Transmission Configuration Indication)) and the O&M controlled attributes part (No Remove, No HO, No Xn). Note that such ANR function may comply with the provisions of 3GPP TS38.300 Section 15.3.3.1, for example.
 ANR機能部120は、UE200から近隣セル情報を受信できる。本実施形態において、ANR機能部120は、近隣セル情報を受信する受信部を構成してよい。当該近隣セル情報には、スライス45に関する情報(スライス関連情報)が含まれてよい。例えば、スライス関連情報には、スライス45またはスライス45のグループの識別情報(Slice group ID)が含まれてよい。 The ANR function unit 120 can receive neighboring cell information from the UE200. In this embodiment, the ANR function unit 120 may constitute a receiving unit that receives neighboring cell information. The neighboring cell information may include information about the slice 45 (slice-related information). For example, the slice-related information may include identification information of the slice 45 or a group of slices 45 (Slice group ID).
 UE接続制御部130は、UE200のサービングセルから近隣の他のセルへのハンドオーバー(セル再選択、遷移などと呼ばれてもよい)を制御する。具体的には、UE接続制御部130は、NRTまたはANR機能に基づいて、品質などのハンドオーバー条件を満たす近隣セルへのハンドオーバーを実行できる。 The UE connection control unit 130 controls handover from the serving cell of the UE 200 to another neighboring cell (also called cell reselection, transition, etc.). Specifically, UE connection control section 130 can perform handover to a neighboring cell that satisfies handover conditions such as quality based on the NRT or ANR function.
 また、UE接続制御部130は、UE200とのランダムアクセス手順(RA手順)に関する制御を実行する。 Also, the UE connection control unit 130 executes control related to the random access procedure (RA procedure) with the UE200.
 UE接続制御部130は、スライス関連情報を含む報告を受信できる。本実施形態において、UE接続制御部130は、スライス関連情報を含む報告を受信する受信部を構成してよい。 The UE connection control unit 130 can receive reports containing slice-related information. In this embodiment, the UE connection control unit 130 may configure a receiving unit that receives reports containing slice-related information.
 当該報告に含まれるスライス関連情報には、UE200が選択(または再選択)したセルにおいて、UE200が要求するサービスなどに対応したスライス45がサポートされていないことを示す情報(或いはサポートされているスライスの情報でもよい)が含まれてよい。 The slice-related information included in the report includes information indicating that the slice 45 corresponding to the service requested by the UE 200 is not supported in the cell selected (or reselected) by the UE 200 (or the supported slice information) may be included.
 制御部140は、gNB100を構成する各機能ブロックを制御する。特に、本実施形態では、制御部140は、UE200の近隣セルの関連付け(NCR)を管理(生成及び更新など)、及びUE200が利用するスライス45に関する制御を実行できる。 The control unit 140 controls each functional block that configures the gNB100. In particular, in this embodiment, the control unit 140 can manage (generate, update, etc.) the Neighbor Cell Association (NCR) of the UE 200 and control the slices 45 that the UE 200 uses.
 具体的には、制御部140は、ANR機能部120がUE200から受信したスライス関連情報に基づいて、セルがサポートするスライス45の種類を考慮したNCRを管理できる。 Specifically, the control unit 140 can manage the NCR considering the types of slices 45 supported by the cell, based on the slice-related information that the ANR function unit 120 receives from the UE 200.
 また、制御部140は、UE接続制御部130がUE200から受信したスライス関連情報に基づいて、UE200の要求するスライス45をサポートするセルへのハンドオーバーを制御してもよい。 Also, the control unit 140 may control handover to a cell that supports the slice 45 requested by the UE 200 based on the slice-related information that the UE connection control unit 130 has received from the UE 200.
 制御部140は、gNB100がサポートするスライスの情報を他の無線基地局(gNB)などと交換してよい。具体的には、制御部140は、当該スライス関連情報をNG-RAN20を構成する他の無線基地局などのノードと共有してもよい。なお、具体的なスライス関連情報の共有例については、後述する。 The control unit 140 may exchange slice information supported by the gNB 100 with other radio base stations (gNBs). Specifically, the control unit 140 may share the slice-related information with nodes such as other radio base stations configuring the NG-RAN 20 . A specific example of sharing slice-related information will be described later.
 なお、チャネルには、制御チャネルとデータチャネルとが含まれる。制御チャネルには、PDCCH(Physical Downlink Control Channel)、PUCCH(Physical Uplink Control Channel)、RACH(Random Access Channel、Random Access Radio Network Temporary Identifier(RA-RNTI)を含むDownlink Control Information (DCI)でもよい)、及びPhysical Broadcast Channel(PBCH)などが含まれてよい。 It should be noted that the channel includes a control channel and a data channel. Control channels may be PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI)), and Physical Broadcast Channel (PBCH) may be included.
 データチャネルには、PDSCH(Physical Downlink Shared Channel)、及びPUSCH(Physical Uplink Shared Channel)などが含まれる。データとは、データチャネルを介して送信されるデータを意味してよい。 Data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel). Data may refer to data transmitted over a data channel.
 また、レイヤ1とは、物理レイヤなどの下位レイヤが含まれると解釈されてよい。レイヤ3とは、レイヤ1よりも上位レイヤである。上位レイヤには、無線リンク制御レイヤ(RLC)、パケット・データ・コンバージェンス・プロトコル・レイヤ(PDCP)、無線リソース制御レイヤ(RRC)の少なくとも何れかが含まれてもよく、媒体アクセス制御レイヤ(MAC)は、下位レイヤと上位レイヤとの中間に位置付けられてもよい。 Also, layer 1 may be interpreted as including lower layers such as the physical layer. Layer 3 is a higher layer than layer 1 . The higher layers may include a radio link control layer (RLC), a packet data convergence protocol layer (PDCP), a radio resource control layer (RRC) and/or a medium access control layer (MAC ) may be positioned between the lower layer and the upper layer.
 (2.2)UE200
 図3に示すように、UE200は、無線通信部210、接続実行部220、スライス関連情報処理部230及び制御部240を備える。
(2.2) UE200
As shown in FIG. 3, the UE 200 includes a radio communication unit 210, a connection execution unit 220, a slice related information processing unit 230 and a control unit 240.
 無線通信部210は、NRに従った上りリンク信号(UL信号)を送信する。また、無線通信部210は、NRに従った上りリンク信号(DL信号)を受信する。 The radio communication unit 210 transmits an uplink signal (UL signal) according to NR. Also, the radio communication unit 210 receives an uplink signal (DL signal) according to NR.
 接続実行部220は、ネットワーク(gNB100)とRA手順を実行する。また、接続実行部220は、サービングセルから近隣の他のセルへのハンドオーバーを実行する。具体的には、接続実行部220は、NRTまたはANR機能に基づいて、品質などのハンドオーバー条件を満たす近隣セルへのハンドオーバーを実行できる。 The connection execution unit 220 executes RA procedures with the network (gNB 100). The connection execution unit 220 also executes handover from the serving cell to another neighboring cell. Specifically, the connection performing unit 220 can perform handover to a neighboring cell that satisfies handover conditions such as quality based on the NRT or ANR function.
 スライス関連情報処理部230は、スライス45に関する情報(スライス関連情報)の処理を実行する。 The slice-related information processing unit 230 processes information (slice-related information) related to the slice 45 .
 具体的には、スライス関連情報処理部230は、スライス45の情報を含む近隣セル情報をネットワークに送信できる。本実施形態において、スライス関連情報処理部230は、スライス45の情報を含む近隣セル情報を送信する送信部を構成してよい。 Specifically, the slice-related information processing unit 230 can transmit neighboring cell information including information on the slice 45 to the network. In this embodiment, the slice-related information processing section 230 may configure a transmitting section that transmits neighboring cell information including information on the slice 45 .
 例えば、スライス関連情報処理部230は、スライス(NSSAI:Network Slice Selection Assistance Information)またはスライスのグループ(Slice group ID)の識別情報を含む近隣セル情報を送信してよい。 For example, the slice-related information processing unit 230 may transmit neighboring cell information including identification information of a slice (NSSAI: Network Slice Selection Assistance Information) or a group of slices (Slice group ID).
 また、スライス関連情報処理部230は、接続実行部220が選択したセルにおいて要求するスライス45がサポートされていない場合、当該スライスの関連情報(スライス関連情報)を含む報告をネットワークに送信してもよい。本実施形態において、スライス関連情報処理部230は、スライス関連情報を含む報告を送信する送信部を構成してよい。 Also, if the slice 45 requested by the cell selected by the connection execution unit 220 is not supported, the slice-related information processing unit 230 may transmit a report including information related to the slice (slice-related information) to the network. good. In this embodiment, the slice-related information processing section 230 may configure a transmitting section that transmits a report including slice-related information.
 当該スライス関連情報は、要求するスライス45がサポートされていないことを端的に示すものでもよいし、サポートされているスライス45の識別情報(またはSlice group ID)を示すものでもよい。 The slice-related information may simply indicate that the requested slice 45 is not supported, or may indicate the identification information (or Slice group ID) of the supported slice 45.
 スライス関連情報は、測定報告(例えば、logged MDT (Minimization of Drive Test) measurement report、Immediate MDT measurement report、或いはmeasurement report)などの報告に含まれてよい。但し、測定報告でなく、Failure report(例えば、RLF report、 connEstFailReport、或いはRACH reportなどの他の報告でも構わない。また、スライス関連情報は、例えば、優先度と対応付けられた複数のスライス45の識別情報(またはSlice group ID)などによって構成されてもよい。 Slice-related information may be included in a report such as a measurement report (eg, logged MDT (Minimization of Drive Test) measurement report, Immediate MDT measurement report, or measurement report). However, instead of the measurement report, other reports such as Failure report (for example, RLF report, connEstFailReport, or RACH report) are also acceptable.In addition, the slice-related information is, for example, a plurality of slices 45 associated with priority. It may be configured by identification information (or Slice group ID) or the like.
 スライス関連情報処理部230は、接続実行部220によるセルの選択後、当該セルまたは他のセルとの接続を確立した場合、スライス関連情報を含む特定の測定報告(例えば、logged MDT)をネットワークに送信してよい。 After the cell is selected by the connection execution unit 220, the slice-related information processing unit 230 sends a specific measurement report (eg, logged MDT) including slice-related information to the network when a connection with the cell or another cell is established. may be sent.
 なお、選択したセルにおいて要求するスライス45は、UE200におけるスライス優先度(slice priority)に基づいて決定されてもよい。 Note that the slice 45 requested in the selected cell may be determined based on the slice priority in the UE 200.
 スライス関連情報処理部230は、ランダムアクセス手順(RA手順)が失敗した場合、当該RA手順の関連情報を含む報告をネットワークに送信してもよい。本実施形態において、スライス関連情報処理部230は、RA手順の関連情報(RA手順関連情報)を含む報告を送信する送信部を構成してよい。 When the random access procedure (RA procedure) fails, the slice-related information processing unit 230 may send a report including information related to the RA procedure to the network. In the present embodiment, the slice-related information processing section 230 may constitute a transmission section that transmits a report including RA procedure-related information (RA procedure-related information).
 RA手順関連情報は、RA手順の実行に用いられた無線リソースを含んでもよい。当該無線リソースには、2-step slice specific RACH resourceまたは4-step slice specific RACH resourceが含まれてよい。当該RACH resourceは、特定のスライス45に固有の無線リソース(つまり、他のスライス45では利用されない)と解釈されてよい。 The RA procedure-related information may include radio resources used for executing the RA procedure. The radio resource may include a 2-step slice specific RACH resource or a 4-step slice specific RACH resource. The RACH resource may be interpreted as a radio resource specific to a particular slice 45 (ie not used in other slices 45).
 また、RA手順関連情報は、スライス45に固有のRA手順(slice specific RACH)から通常のRA手順にフォールバックしたこと、及び/またはスライス45に固有のRA手順と、特定サービスのRA手順とが衝突したことを含んでもよい。特定サービスとしては、例えば、MPS(Multimedia Priority Service)またはMCS(Mission critical service)が挙げられる。 In addition, the RA procedure-related information indicates that the RA procedure specific to the slice 45 (slice specific RACH) has fallen back to the normal RA procedure, and/or that the RA procedure specific to the slice 45 and the RA procedure of a specific service are different. May include collision. Specific services include, for example, MPS (Multimedia Priority Service) or MCS (Mission critical service).
 制御部240は、UE200を構成する各機能ブロックを制御する。特に、本実施形態では、制御部240は、UE200のサービングセルの近隣に形成される近隣セルの関連付けを制御する。 The control unit 240 controls each functional block that configures the UE200. In particular, in this embodiment, the control unit 240 controls the association of neighboring cells formed in the neighborhood of the serving cell of the UE 200 .
 制御部240は、スライス45に固有のRA手順(slice specific RACH)を実行できる。slice specific RACHには、通常のRACHと同様に、2ステップRACH及び4ステップRACHが含まれてよい。 The control unit 240 can execute an RA procedure (slice specific RACH) specific to the slice 45. A slice specific RACH may include a 2-step RACH and a 4-step RACH as well as a normal RACH.
 2ステップRACHでは、メッセージ(MSG)A, B(Random Access Preamble, Contention Resolution/Random Access Response (RAR))が送受信されてよい。4ステップRACHでは、MSG1~4(Random Access Preamble, Random Access Response、Scheduled Transmission, Contention Resolution)が送受信されてよい。 In the 2-step RACH, messages (MSG) A and B (Random Access Preamble, Contention Resolution/Random Access Response (RAR)) may be transmitted and received. In the 4-step RACH, MSG1-4 (Random Access Preamble, Random Access Response, Scheduled Transmission, Contention Resolution) may be transmitted and received.
 制御部240は、スライス45をサポートするセルまたはサポートしないセルを選択することができる。つまり、制御部240は、UE200が要求する種類のスライス45をサポートするセルを選択することもあってもよいし、UE200が要求する種類のスライス45をサポートしないセルを選択することがあってもよい。UE200が要求する種類のスライス45をサポートしないセルを選択した場合には、上述したように、スライス関連情報が送信されてよい。 The control unit 240 can select cells that support or do not support the slice 45. That is, the control unit 240 may select a cell that supports the type of slice 45 requested by the UE 200, or may select a cell that does not support the type of slice 45 requested by the UE 200. good. If the UE 200 selects a cell that does not support the type of slice 45 requested, slice related information may be transmitted, as described above.
 また、制御部240は、RRCの接続確立が失敗(connection establishment failure)した場合、アクセスしようとしたスライス45のスライス関連情報をネットワークに送信してもよい。当該スライス関連情報は、例えば、ConnEstFailureReportに含められてもよい。 In addition, when the RRC connection establishment fails (connection establishment failure), the control unit 240 may transmit the slice-related information of the slice 45 to be accessed to the network. The slice-related information may be included in ConnEstFailureReport, for example.
 (3)無線通信システムの動作
 次に、無線通信システム10の動作について説明する。具体的には、RAN Slicingに対応したSelf-Organizing Networks(SON)構築に関連する動作例について説明する。
(3) Operation of Radio Communication System Next, the operation of the radio communication system 10 will be described. Specifically, an operation example related to building Self-Organizing Networks (SON) that supports RAN Slicing will be described.
 (3.1)前提
 RAN Slicingでは、スライス45(図1参照)を意識したセル再選択が実現されることが好ましい。具体的には、スライス45を意識したセル再選択をサポートするため、セルがサポートするスライスをアイドル状態(RRC)のUE200に報知する必要がある。
(3.1) Premises In RAN Slicing, it is preferable to implement cell reselection with the slice 45 (see FIG. 1) in mind. Specifically, in order to support cell reselection with the slice 45 in mind, it is necessary to notify the UE 200 in the idle state (RRC) of the slices supported by the cell.
 ここで、NSSAIをそのまま報知すると、システム情報(SIB:System Information Block)のサイズと、セキュリティとの問題がある。そこで、類似した種類の複数のスライス45を同一スライスグループとして管理し、NSSAIの代わりにSlice group IDを報知することが想定される。 Here, if NSSAI is broadcast as it is, there are problems with the size of system information (SIB: System Information Block) and security. Therefore, it is assumed that a plurality of slices 45 of similar types are managed as the same slice group, and Slice group ID is broadcast instead of NSSAI.
 図5は、スライスグループの構成例を示す。図5に示すように、スライスグループは、複数のNSSAIによって構成されてよい。 FIG. 5 shows a configuration example of a slice group. As shown in FIG. 5, a slice group may consist of multiple NSSAIs.
 また、RAN Slicingでは、slice specific RACHの適用が想定される。slice specific RACHは、衝突型(Contention based RACH)において、高優先スライスのために個別のRACH resourceを確保し、低優先或いはslice specific RACH以外のレガシーなRACHとの衝突を回避する。 Also, in RAN Slicing, application of slice specific RACH is assumed. In the contention based RACH, the slice specific RACH reserves separate RACH resources for high priority slices and avoids collisions with low priority or legacy RACHs other than slice specific RACH.
 slice specific RACHは、工場などでのURLLC(Ultra-Reliable and Low Latency Communications)系サービスにおいて、より迅速にネットワークに接続するため、高優先のスライスにRACH resourceを確保することが望ましい。具体的には、Contention based RACH resource中の一部リソースを高優先スライスのために確保する。RACH resource isolationとも呼ばれてもよい。 For slice specific RACH, it is desirable to secure RACH resources in high-priority slices in order to connect to the network more quickly in URLLC (Ultra-Reliable and Low Latency Communications) services at factories. Specifically, some resources in Contention based RACH resources are reserved for high priority slices. May also be called RACH resource isolation.
 そこで、次のような対応が考えられている。 Therefore, the following measures are being considered.
  ・スライス(またはスライスグループ)毎にRACH resource poolを構成し、UE200に通知
  ・スライス(またはスライスグループ)毎にRACH parameterをUE200に設定
 例えば、高優先スライスに専用のRACH parameter(scalingFactorBI及びpowerRampingStepHighPriority)を設定してよい。
・Configure RACH resource pool for each slice (or slice group) and notify UE200 ・Set RACH parameter to UE200 for each slice (or slice group) can be set.
 (3.2)動作例
 以下では、RAN Slicingに対応したSON構築に関連する動作例1~5について説明する。
(3.2) Operation example Below, operation examples 1 to 5 related to SON construction compatible with RAN Slicing will be described.
 (3.2.1)動作例1
 既存のANR機能では、UE200は、セルがサポートするスライスの情報を報告できない問題がある。本動作例では、UE200は、RRCレイヤの特定の情報要素(例えば、CGIInfoNR)にSlice group IDの情報を含めてよい。
(3.2.1) Operation example 1
The existing ANR function has a problem that the UE 200 cannot report information on slices supported by cells. In this operation example, the UE 200 may include Slice group ID information in a specific information element (for example, CGIInfoNR) of the RRC layer.
 図6は、動作例1に係るSlice group IDの報告シーケンスの例を示す。図6に示すように、UE200は、セルAと接続し、近隣セル情報を報告できる。ここで、UE200は、セルBから、BCCH(Broadcast Control Channel)を介してSIBを受信する。セルBは、RAN Slicingをサポートしてよい。 FIG. 6 shows an example of a Slice group ID reporting sequence according to Operation Example 1. As shown in FIG. 6, UE 200 can connect to cell A and report neighbor cell information. Here, UE 200 receives SIB from cell B via BCCH (Broadcast Control Channel). Cell B may support RAN Slicing.
 UE200は、セルBからRAN Slicingをサポートすることを示す表示を含むSIBを受信した場合、セルBの近隣セル情報をセルA(サービングセル)に報告する際、Slice group IDを含めてよい。 When the UE 200 receives an SIB containing an indication indicating support for RAN Slicing from cell B, the UE 200 may include a slice group ID when reporting neighbor cell information of cell B to cell A (serving cell).
 Slice group IDをNRTに組み込むことによって、ハンドオーバー元セル(ソースセル)で利用していたスライス45をサポートするために、適切な遷移先のセルを発見して選択することが可能となる。 By incorporating the Slice group ID into the NRT, it is possible to discover and select an appropriate transition destination cell in order to support the slice 45 used in the handover source cell (source cell).
 また、当該セルがサポートするスライスの情報(スライス関連情報)は、ネットワークを構成するノード間においてシグナリングされてもよい。 In addition, information on slices supported by the cell (slice-related information) may be signaled between nodes that configure the network.
 図7は、動作例1に係るノード間におけるスライス関連情報のシグナリング例を示す。図7に示すように、同一のAMF50配下において、Xnリンクを有しないgNB1とgNB2との間において、それぞれサポートするスライスの情報がシグナリングされてもよい。 7 shows an example of signaling of slice-related information between nodes according to operation example 1. FIG. As shown in FIG. 7, under the same AMF 50, between gNB1 and gNB2 that do not have Xn links, information on slices to be supported may be signaled.
 なお、シグナリングに用いられるメッセージは、一例であり、当該ノード間において送受信されるメッセージであれば、他のメッセージが用いられてもよい。 The messages used for signaling are only examples, and other messages may be used as long as they are messages that are transmitted and received between the nodes.
 (3.2.2)動作例2
 UE200があるセルを(再)選択し、接続を要求する際、UE200が要求するスライスを当該セルがサポートしていない場合、登録失敗(registration failure)となる。本動作例では、このような失敗を未然に回避する。
(3.2.2) Operation example 2
When the UE 200 (re)selects a cell and requests a connection, if the cell does not support the slice the UE 200 requests, a registration failure occurs. In this operation example, such a failure is avoided.
 図8は、動作例2に係る通信シーケンスの例を示す。図8に示すように、UE200は、logged MDTでアクセスしようとするスライスが当該セルによってサポートされていないことを記録してもよい。 FIG. 8 shows an example of a communication sequence according to Operation Example 2. As shown in FIG. 8, UE 200 may record that the slice to be accessed with logged MDT is not supported by the cell.
 UE200は、次にconnected状態になった時に、セルID、サポートされていないスライス情報、及び当該セルがサポートするSlice group ID(スライスグループの情報でもよい)をlogged MDT measurement reportによってネットワークに報告してよい。これらの情報は、まとめてスライス関連情報と呼ばれてもよい。 When the UE 200 becomes connected next time, the cell ID, unsupported slice information, and slice group ID supported by the cell (may be slice group information) are reported to the network by logged MDT measurement report. good. These pieces of information may be collectively called slice-related information.
 アクセスしようとするスライスとは、UE NAS(Non-Access Stratum)からAS(Access Stratum)に通知するslice priorityが最も高いスライス(またはスライスのリスト)であってもよい。或いは、スライスを基準としたセル再選択(slice based cell reselection)において、UE200が記憶(保持)しているslice priorityが最も高いスライス(またはスライスのリスト)であってもよいし、UE200が記憶(保持)しているスライスのリストでもよい。 The slice to be accessed may be the slice (or a list of slices) with the highest slice priority notified from the UE NAS (Non-Access Stratum) to the AS (Access Stratum). Alternatively, in slice-based cell reselection, the slice (or list of slices) with the highest slice priority stored (held) by UE 200 may be stored ( It can also be a list of slices that hold
 slice based cell reselectionは、例えば、次のような手順に沿って実行されてよい。  Slice based cell reselection may be executed, for example, according to the following procedure.
  ・Step 0: NAS layer at UE provides slice information to AS layer at UE, including slice priorities.
  ・Step 1: AS sorts slices in priority order starting with highest priority slice.
  ・Step 2: Select slices in priority order starting with the highest priority slice.
  ・Step 3: For the selected slice assign priority to frequencies received from network.
  ・Step 4: Starting with the highest priority frequency, perform measurements (same as legacy).
  ・Step 5: If the highest ranked cell is suitable (as defined in 38.304) and supports the selected slice in step 2 then camp on the cell and exit this sequence of operation.
  ・Step 6: If there are remaining frequencies then go back to step 4.
  ・Step 7: FFS: If the end of the slice list has not been reached go back to step 2.
  ・Step 8: Perform legacy cell reselection.
・Step 0: NAS layer at UE provides slice information to AS layer at UE, including slice priorities.
・Step 1: AS sorts slices in priority order starting with highest priority slice.
・Step 2: Select slices in priority order starting with the highest priority slice.
・Step 3: For the selected slice assign priority to frequencies received from network.
・Step 4: Starting with the highest priority frequency, perform measurements (same as legacy).
・Step 5: If the highest ranked cell is suitable (as defined in 38.304) and supports the selected slice in step 2 then camp on the cell and exit this sequence of operation.
・Step 6: If there are remaining frequencies then go back to step 4.
・Step 7: FFS: If the end of the slice list has not been reached go back to step 2.
・Step 8: Perform legacy cell reselection.
 (3.2.3)動作例3
 UE200がRRC setup実行時に、connection establishment failure(タイマーT300が満了)が発生した場合、UE200が当該セルにおいてアクセスしようとするスライスの情報をネットワークに報告できない問題がある。本動作例では、UE200は、このようなスライスの情報をネットワークに報告する。
(3.2.3) Operation example 3
When a connection establishment failure (timer T300 expires) occurs when UE200 executes RRC setup, there is a problem that UE200 cannot report to the network the information of the slice to be accessed in the cell. In this operation example, the UE 200 reports such slice information to the network.
 図9は、動作例3に係る通信シーケンスの例を示す。図9に示すように、connection establishment failure(タイマーT300が満了)が発生した場合、UE200は、アクセスしようとするスライスの情報(NSSAI)をConnEstFailureReportに含めてもよい。 FIG. 9 shows an example of a communication sequence according to Operation Example 3. As shown in FIG. 9, when a connection establishment failure (timer T300 expires) occurs, the UE 200 may include information (NSSAI) of the slice to be accessed in the ConnEstFailureReport.
 なお、ConnEstFailureReportは、一例であり、当該スライスの情報を報告できれば、他の報告(専用の報告でもよいし、無線リンク障害(RLF)などの他の報告に含められてもよい)。 Note that the ConnEstFailureReport is just an example, and other reports (may be dedicated reports or may be included in other reports such as radio link failure (RLF)) as long as information on the relevant slice can be reported.
 例えば、UE200が高優先のスライスをアクセスしようとしたがconnection establishment failureが発生したことは、無線通信システム10のオペレータにとって重要なイベントであるため、当該セルを含むエリア品質改善に役立つ情報となり得る。 For example, the occurrence of a connection establishment failure when the UE 200 attempts to access a high-priority slice is an important event for the operator of the wireless communication system 10, so it can be useful information for improving the quality of the area including the cell.
 (3.2.4)動作例4
 UE200のハンドオーバー時にソースセルにおいて利用していたスライスをハンドオーバー先のターゲットセルがサポートできない場合、スライスをリマッピングすること(slice remapping)が考えられる。
(3.2.4) Operation example 4
If the target cell of the handover destination cannot support the slice used in the source cell at the time of handover of the UE 200, slice remapping can be considered.
 slice remappingとは、UE200のハンドオーバー中に、ソースセル(ソースノード)がマッピングしていたスライスが、ターゲットセル(ターゲットノード)によってサポートされないなどの理由により、別のスライスにマッピングすることを意味してよい。 Slice remapping means that during handover of UE 200 the slice that the source cell (source node) was mapping is mapped to another slice due to reasons such as not being supported by the target cell (target node). you can
 しかしながら、slice remappingが失敗した(不可能な)場合、その理由(failure cause)をソースセル(ソースノード)に通知できない問題がある(デュアルコネクティビティの設定でも同様)。本動作例では、slice remappingが失敗した理由が、特定のメッセージを用いてソースノードに通知されてよい。 However, if slice remapping fails (impossible), there is a problem that the reason (failure cause) cannot be notified to the source cell (source node) (the same applies to dual connectivity settings). In this working example, the reason for slice remapping failure may be communicated to the source node using a specific message.
 図10は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by T-gNB(例1))を示す。 FIG. 10 shows a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 1)) according to operation example 4.
 図11は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by T-gNB(例2))を示す。 FIG. 11 shows a sequence example of slice remapping (Slice re-mapping decided by T-gNB (example 2)) according to operation example 4.
 図12は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by AMF and T-gNB)を示す。 FIG. 12 shows a sequence example of slice remapping (Slice re-mapping decided by AMF and T-gNB) according to Operation Example 4.
 図13は、動作例4に係るslice remappingのシーケンス例(Slice re-mapping decided by SN)を示す。 FIG. 13 shows an example of a slice remapping sequence (Slice re-mapping decided by SN) according to Operation Example 4.
 Xn handoverの場合、target nodeがsource nodeから送信されるHO request msg.に含まれるPDU session resource to be setup listのスライス(またはスライスのリスト)を一部または全部サポートできず、target node(T-gNB)がslice remappingを決定した場合、次のような情報がsource nodeに通知されてもよい。 In the case of Xn handover, the target node cannot support some or all of the slices (or the list of slices) of the PDU session resource to be setup list contained in the HO request msg. sent from the source node, and the target node (T- gNB) decides slice remapping, the following information may be notified to the source node.
  ・当該スライス(またはスライスのリスト)を別のスライス(またはスライスのリスト)にリマッピングできた場合、当該内容をsource nodeに通知する。 · If the slice (or list of slices) can be remapped to another slice (or list of slices), notify the source node of the content.
  ・slice remappingできなかった場合、リマッピングできなかったスライス(またはスライスのリスト)と、slice remappingの失敗理由をsource nodeに通知する。 ・If slice remapping fails, notify the source node of the slice (or list of slices) that could not be remapped and the reason for slice remapping failure.
  ・NG handoverの場合、source nodeからAMFにhandover required msg.に含まれるPDU Session Resource Listのスライスの一部または全部サポートできず、AMFまたはtarget nodeがslice remappingを決定した場合、次のような情報がsource nodeに通知されてもよい。 ・In the case of NG handover, when some or all of the slices of the PDU Session Resource List included in the handover required msg. cannot be supported from the source node to AMF, and AMF or target node decides slice remapping, the following information may be notified to the source node.
  ・当該スライス(またはスライスのリスト)を別のスライス(またはスライスのリスト)にリマッピングできた場合に、当該内容をsource nodeに通知する。 · If the slice (or list of slices) can be remapped to another slice (or list of slices), notify the source node of the content.
  ・slice remappingできなかった場合、リマッピングできなかったスライス(またはスライスのリスト)とslice remappingの失敗理由をsource nodeに通知する。 · If slice remapping fails, notify the source node of the slice (or list of slices) that could not be remapped and the reason for slice remapping failure.
  ・SN additionの場合、MNからSNにSN addition requestに含まれるPDU session resource to be added listのスライスの一部または全部サポートできず、SNがslice remappingを決定した場合、次のような情報がsource nodeに通知されてもよい。 - In the case of SN addition, if the MN cannot support all or part of the slices of the PDU session resource to be added list included in the SN addition request from the SN, and the SN decides slice remapping, the following information is sourced: node may be notified.
  ・当該スライス(またはスライスのリスト)を別のスライス(またはスライスのリスト)にリマッピングできた場合、当該内容をMNに通知する。 · If the slice (or slice list) can be remapped to another slice (or slice list), notify the MN of the content.
  ・slice remappingできなかった場合、リマッピングできなかったスライス(またはスライスのリスト)とslice remappingの失敗理由をMNに通知する。   ・If slice remapping fails, notify the MN of the slice (or list of slices) that could not be remapped and the reason for slice remapping failure.
 なお、上述した通知内容は、図10~図13に示されているsource node(S-gNB)向けのメッセージに含まれてよい(図10~図13において、該当し得るメッセージには、*を示している)。 Note that the notification contents described above may be included in the messages for the source node (S-gNB) shown in FIGS. shown).
 (3.2.5)動作例5
 slice specific RACHが失敗した場合、適切なRA手順関連情報をRACH reportに含めてネットワークに報告する必要がある。本動作例では、slice specific RACHが失敗した場合、当該失敗に伴うRA手順関連情報を含むRACH reportがネットワークに報告されてよい。
(3.2.5) Operation example 5
If the slice specific RACH fails, the appropriate RA procedure related information should be included in the RACH report and reported to the network. In this operation example, when slice specific RACH fails, a RACH report including RA procedure-related information associated with the failure may be reported to the network.
 図14は、動作例5に係る通信シーケンスの例を示す。図14に示すように、slice specific RACHが失敗した場合、RACH reportには、少なくとも次の何れかを含むRA手順関連情報が報告されてよい。 14 shows an example of a communication sequence according to Operation Example 5. FIG. As shown in FIG. 14, if slice-specific RACH fails, the RACH report may report RA procedure-related information including at least any of the following.
  ・使用した2-step slice specific RACH resource
  ・使用した4-step slice specific RACH resource
  ・scalingFactorBIとslice specific powerRampingStepHighPriority設定値
  ・Power rampingした回数
 例えば、PREAMBLE_POWER_RAMPING_COUNTERがincrementした回数としてよい。
・Used 2-step slice specific RACH resource
・Used 4-step slice specific RACH resource
・scalingFactorBI and slice specific powerRampingStepHighPriority set value ・Number of times Power ramping is performed For example, the number of times PREAMBLE_POWER_RAMPING_COUNTER is incremented may be used.
  ・UE200がアクセスしようとするslice ID(NSSAI)またはSlice group ID
 当該セルがサポートするスライスグループの情報がRACH reportに含められてもよい。
・Slice ID (NSSAI) or Slice group ID that UE200 tries to access
Information on slice groups supported by the cell may be included in the RACH report.
  ・2-step slice specific RACHからLegacy 4 step common RACHにFallbackしたか否かをを示す表示(indication)
  ・MPS/MCS based RACHと衝突があったかを示す表示
 MPS/MCS based RACHと衝突があった場合、slice specific RACHまたはMPS/MCS based RACHの何れを優先したかを示す表示
・Indication indicating whether fallback has occurred from 2-step slice specific RACH to Legacy 4-step common RACH
・Indication indicating whether there was a collision with MPS/MCS based RACH Indication indicating which of slice specific RACH or MPS/MCS based RACH was prioritized when there was a collision with MPS/MCS based RACH.
 (4)作用・効果
 上述した実施形態によれば、以下の作用効果が得られる。gNB100及びUE200によれば、次のような作用及び効果を奏し得る。
(4) Functions and Effects According to the above-described embodiment, the following functions and effects are obtained. According to gNB100 and UE200, there can exist the following actions and effects.
  ・ANR機能にSlice group IDを含め、NRTにスライス情報を組み込むことによって、ソースセル(ソースノード)側において利用していたスライスに応じた適切な遷移先セルを選択できる。   ·By including the Slice group ID in the ANR function and incorporating the slice information in the NRT, it is possible to select an appropriate transition destination cell according to the slice used on the source cell (source node) side.
  ・UE200がアクセスしようとするスライスが在圏セル(サービングセル)によってサポートされていない場合、当該情報をネットワークに報告することによって、エリアのスライスサポートの最適化に役立てることができる。 · If the slice that the UE 200 tries to access is not supported by the serving cell (serving cell), reporting this information to the network can help optimize the slice support for the area.
  ・RRC setup時にUE200が高優先のスライスをアクセスしようとしたがconnection establishment failureが発生したことは、無線通信システム10のオペレータにとって重要なイベントであるため、当該セルを含むエリア品質改善に役立つ情報となる。 ・At the time of RRC setup, the UE 200 attempted to access a high-priority slice, but a connection establishment failure occurred, which is an important event for the operator of the wireless communication system 10. Become.
  ・UE200のハンドオーバー時にソースセルにおいて利用していたスライスをターゲットセルがサポートできず、スライスのリマッピングができたか否かを示す情報がソースノードに通知されることによって、ハンドオーバーによるサービス継続性の維持に役立てる情報となる。 - The target cell cannot support the slice used in the source cell at the time of handover of the UE 200, and information indicating whether or not the slice can be remapped is notified to the source node, thereby ensuring service continuity due to handover. information to help maintain
  ・slice specific RACHの失敗に関するRA手順関連情報を含むRACH reportをネットワークに報告することによって、slice specific RACHに関するパラメータ設定の最適化に役立てる。 · By reporting a RACH report containing RA procedure-related information about slice specific RACH failures to the network, it helps to optimize parameter settings for slice specific RACH.
 (5)その他の実施形態
 以上、実施形態について説明したが、当該実施形態の記載に限定されるものではなく、種々の変形及び改良が可能であることは、当業者には自明である。
(5) Other Embodiments Although the embodiments have been described above, it is obvious to those skilled in the art that the present invention is not limited to the description of the embodiments, and that various modifications and improvements are possible.
 例えば、上述した実施形態では、スライスの用語が用いられていたが、上述したように、スライスは、ユースケースまたはビジネスモデルなどのサービス単位で分割された論理的(仮想的)なネットワークであり、このようなネットワークであれば、別の名称で呼ばれても構わない。 For example, in the above-described embodiments, the term slice was used, but as described above, a slice is a logical (virtual) network divided by service units such as use cases or business models, Such a network may be called by another name.
 また、上述した記載において、設定(configure)、アクティブ化(activate)、更新(update)、指示(indicate)、有効化(enable)、指定(specify)、選択(select)、は互いに読み替えられてもよい。同様に、リンクする(link)、関連付ける(associate)、対応する(correspond)、マップする(map)、は互いに読み替えられてもよく、配置する(allocate)、割り当てる(assign)、モニタする(monitor)、マップする(map)、も互いに読み替えられてもよい。 Also, in the above description, configure, activate, update, indicate, enable, specify, and select may be read interchangeably. good. Similarly, link, associate, correspond, and map may be read interchangeably to allocate, assign, monitor. , map, may also be read interchangeably.
 さらに、固有(specific)、個別(dedicated)、UE固有、UE個別、は互いに読み替えられてもよい。同様に、共通(common)、共有(shared)、グループ共通(group-common)、UE共通、UE共有、は互いに読み替えられてもよい。 Furthermore, specific, dedicated, UE-specific, and UE-specific may be read interchangeably. Similarly, common, shared, group-common, UE common, and UE shared may be read interchangeably.
 本開示において、「プリコーディング」、「プリコーダ」、「ウェイト(プリコーディングウェイト)」、「擬似コロケーション(Quasi-Co-Location(QCL))」、「Transmission Configuration Indication state(TCI状態)」、「空間関係(spatial relation)」、「空間ドメインフィルタ(spatial domain filter)」、「送信電力」、「位相回転」、「アンテナポート」、「アンテナポートグル-プ」、「レイヤ」、「レイヤ数」、「ランク」、「リソース」、「リソースセット」、「リソースグループ」、「ビーム」、「ビーム幅」、「ビーム角度」、「アンテナ」、「アンテナ素子」、「パネル」などの用語は、互換的に使用され得る。 In the present disclosure, "precoding", "precoder", "weight (precoding weight)", "quasi-co-location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", Terms such as "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", "panel" are interchangeable. can be used as intended.
 また、上述した実施形態の説明に用いたブロック構成図(図2,3)は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的または論理的に結合した1つの装置を用いて実現されてもよいし、物理的または論理的に分離した2つ以上の装置を直接的または間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。機能ブロックは、上記1つの装置または上記複数の装置にソフトウェアを組み合わせて実現されてもよい。 Also, the block configuration diagrams (FIGS. 2 and 3) used to describe the above-described embodiment show blocks in units of functions. These functional blocks (components) are implemented by any combination of at least one of hardware and software. Also, the method of implementing each functional block is not particularly limited. That is, each functional block may be implemented using one device physically or logically coupled, or directly or indirectly using two or more physically or logically separate devices (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices. A functional block may be implemented by combining software in the one device or the plurality of devices.
 機能には、判断、決定、判定、計算、算出、処理、導出、調査、探索、確認、受信、送信、出力、アクセス、解決、選択、選定、確立、比較、想定、期待、見做し、報知(broadcasting)、通知(notifying)、通信(communicating)、転送(forwarding)、構成(configuring)、再構成(reconfiguring)、割り当て(allocating、mapping)、割り振り(assigning)などがあるが、これらに限られない。例えば、送信を機能させる機能ブロック(構成部)は、送信部(transmitting unit)や送信機(transmitter)と呼称される。何れも、上述したとおり、実現方法は特に限定されない。 Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. In either case, as described above, the implementation method is not particularly limited.
 さらに、上述したgNB100及びUE200(当該装置)は、本開示の無線通信方法の処理を行うコンピュータとして機能してもよい。図15は、当該装置のハードウェア構成の一例を示す図である。図15に示すように、当該装置は、プロセッサ1001、メモリ1002、ストレージ1003、通信装置1004、入力装置1005、出力装置1006及びバス1007などを含むコンピュータ装置として構成されてもよい。 Furthermore, the gNB 100 and UE 200 (applicable device) described above may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 15 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 15, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
 なお、以下の説明では、「装置」という文言は、回路、デバイス、ユニットなどに読み替えることができる。当該装置のハードウェア構成は、図に示した各装置を1つまたは複数含むように構成されてもよいし、一部の装置を含まずに構成されてもよい。 In the following explanation, the term "apparatus" can be read as a circuit, device, unit, or the like. The hardware configuration of the device may be configured to include one or more of each device shown in the figure, or may be configured without some of the devices.
 当該装置の各機能ブロック(図2.3参照)は、当該コンピュータ装置の何れかのハードウェア要素、または当該ハードウェア要素の組み合わせによって実現される。 Each functional block of the device (see Fig. 2.3) is realized by any hardware element of the computer device or a combination of the hardware elements.
 また、当該装置における各機能は、プロセッサ1001、メモリ1002などのハードウェア上に所定のソフトウェア(プログラム)を読み込ませることによって、プロセッサ1001が演算を行い、通信装置1004による通信を制御したり、メモリ1002及びストレージ1003におけるデータの読み出し及び書き込みの少なくとも一方を制御したりすることによって実現される。 In addition, each function of the device is implemented by causing the processor 1001 to perform calculations, controlling communication by the communication device 1004, and controlling the It is realized by controlling at least one of data reading and writing in 1002 and storage 1003 .
 プロセッサ1001は、例えば、オペレーティングシステムを動作させてコンピュータ全体を制御する。プロセッサ1001は、周辺装置とのインターフェース、制御装置、演算装置、レジスタなどを含む中央処理装置(CPU)によって構成されてもよい。 A processor 1001, for example, operates an operating system and controls the entire computer. The processor 1001 may be configured with a central processing unit (CPU) including interfaces with peripheral devices, a controller, arithmetic units, registers, and the like.
 また、プロセッサ1001は、プログラム(プログラムコード)、ソフトウェアモジュール、データなどを、ストレージ1003及び通信装置1004の少なくとも一方からメモリ1002に読み出し、これらに従って各種の処理を実行する。プログラムとしては、上述の実施の形態において説明した動作の少なくとも一部をコンピュータに実行させるプログラムが用いられる。さらに、上述の各種処理は、1つのプロセッサ1001によって実行されてもよいし、2つ以上のプロセッサ1001により同時または逐次に実行されてもよい。プロセッサ1001は、1以上のチップによって実装されてもよい。なお、プログラムは、電気通信回線を介してネットワークから送信されてもよい。 Also, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. Further, the various processes described above may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
 メモリ1002は、コンピュータ読み取り可能な記録媒体であり、例えば、Read Only Memory(ROM)、Erasable Programmable ROM(EPROM)、Electrically Erasable Programmable ROM(EEPROM)、Random Access Memory(RAM)などの少なくとも1つによって構成されてもよい。メモリ1002は、レジスタ、キャッシュ、メインメモリ(主記憶装置)などと呼ばれてもよい。メモリ1002は、本開示の一実施形態に係る方法を実行可能なプログラム(プログラムコード)、ソフトウェアモジュールなどを保存することができる。 The memory 1002 is a computer-readable recording medium, and is composed of at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be The memory 1002 may also be called a register, cache, main memory (main storage device), or the like. The memory 1002 can store programs (program code), software modules, etc. capable of executing a method according to an embodiment of the present disclosure.
 ストレージ1003は、コンピュータ読み取り可能な記録媒体であり、例えば、Compact Disc ROM(CD-ROM)などの光ディスク、ハードディスクドライブ、フレキシブルディスク、光磁気ディスク(例えば、コンパクトディスク、デジタル多用途ディスク、Blu-ray(登録商標)ディスク)、スマートカード、フラッシュメモリ(例えば、カード、スティック、キードライブ)、フロッピー(登録商標)ディスク、磁気ストリップなどの少なくとも1つによって構成されてもよい。ストレージ1003は、補助記憶装置と呼ばれてもよい。上述の記録媒体は、例えば、メモリ1002及びストレージ1003の少なくとも一方を含むデータベース、サーバその他の適切な媒体であってもよい。 The storage 1003 is a computer-readable recording medium, for example, an optical disc such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disc, a magneto-optical disc (for example, a compact disc, a digital versatile disc, a Blu-ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like. Storage 1003 may also be referred to as an auxiliary storage device. The recording medium described above may be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003 .
 通信装置1004は、有線ネットワーク及び無線ネットワークの少なくとも一方を介してコンピュータ間の通信を行うためのハードウェア(送受信デバイス)であり、例えばネットワークデバイス、ネットワークコントローラ、ネットワークカード、通信モジュールなどともいう。 The communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
 通信装置1004は、例えば周波数分割複信(Frequency Division Duplex:FDD)及び時分割複信(Time Division Duplex:TDD)の少なくとも一方を実現するために、高周波スイッチ、デュプレクサ、フィルタ、周波数シンセサイザなどを含んで構成されてもよい。 The communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc., for realizing at least one of frequency division duplex (FDD) and time division duplex (TDD). may consist of
 入力装置1005は、外部からの入力を受け付ける入力デバイス(例えば、キーボード、マウス、マイクロフォン、スイッチ、ボタン、センサなど)である。出力装置1006は、外部への出力を実施する出力デバイス(例えば、ディスプレイ、スピーカー、LEDランプなど)である。なお、入力装置1005及び出力装置1006は、一体となった構成(例えば、タッチパネル)であってもよい。 The input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside. The output device 1006 is an output device (eg, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
 また、プロセッサ1001及びメモリ1002などの各装置は、情報を通信するためのバス1007で接続される。バス1007は、単一のバスを用いて構成されてもよいし、装置間ごとに異なるバスを用いて構成されてもよい。 Also, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
 さらに、当該装置は、マイクロプロセッサ、デジタル信号プロセッサ(Digital Signal Processor: DSP)、Application Specific Integrated Circuit(ASIC)、Programmable Logic Device(PLD)、Field Programmable Gate Array(FPGA)などのハードウェアを含んで構成されてもよく、当該ハードウェアにより、各機能ブロックの一部または全てが実現されてもよい。例えば、プロセッサ1001は、これらのハードウェアの少なくとも1つを用いて実装されてもよい。 In addition, the device includes hardware such as a microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), etc. A part or all of each functional block may be implemented by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.
 また、情報の通知は、本開示において説明した態様/実施形態に限られず、他の方法を用いて行われてもよい。例えば、情報の通知は、物理レイヤシグナリング(例えば、Downlink Control Information(DCI)、Uplink Control Information(UCI)、上位レイヤシグナリング(例えば、RRCシグナリング、Medium Access Control(MAC)シグナリング、報知情報(Master Information Block(MIB)、System Information Block(SIB))、その他の信号またはこれらの組み合わせによって実施されてもよい。また、RRCシグナリングは、RRCメッセージと呼ばれてもよく、例えば、RRC接続セットアップ(RRC Connection Setup)メッセージ、RRC接続再構成(RRC Connection Reconfiguration)メッセージなどであってもよい。 In addition, notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may include physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), other signals, or combinations thereof, and RRC signaling may also be referred to as RRC messages, e.g., RRC Connection Setup ) message, RRC Connection Reconfiguration message, or the like.
 本開示において説明した各態様/実施形態は、Long Term Evolution(LTE)、LTE-Advanced(LTE-A)、SUPER 3G、IMT-Advanced、4th generation mobile communication system(4G)、5th generation mobile communication system(5G)、Future Radio Access(FRA)、New Radio(NR)、W-CDMA(登録商標)、GSM(登録商標)、CDMA2000、Ultra Mobile Broadband(UMB)、IEEE 802.11(Wi-Fi(登録商標))、IEEE 802.16(WiMAX(登録商標))、IEEE 802.20、Ultra-WideBand(UWB)、Bluetooth(登録商標)、その他の適切なシステムを利用するシステム及びこれらに基づいて拡張された次世代システムの少なくとも一つに適用されてもよい。また、複数のシステムが組み合わされて(例えば、LTE及びLTE-Aの少なくとも一方と5Gとの組み合わせなど)適用されてもよい。 Each aspect/embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system ( 5G), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)) , IEEE 802.16 (WiMAX®), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth®, other suitable systems, and/or next-generation systems enhanced therefrom. may be applied to Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
 本開示において説明した各態様/実施形態の処理手順、シーケンス、フローチャートなどは、矛盾の無い限り、順序を入れ替えてもよい。例えば、本開示において説明した方法については、例示的な順序を用いて様々なステップの要素を提示しており、提示した特定の順序に限定されない。 The order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in the present disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.
 本開示において基地局によって行われるとした特定動作は、場合によってはその上位ノード(upper node)によって行われることもある。基地局を有する1つまたは複数のネットワークノード(network nodes)からなるネットワークにおいて、端末との通信のために行われる様々な動作は、基地局及び基地局以外の他のネットワークノード(例えば、MMEまたはS-GWなどが考えられるが、これらに限られない)の少なくとも1つによって行われ得ることは明らかである。上記において基地局以外の他のネットワークノードが1つである場合を例示したが、複数の他のネットワークノードの組み合わせ(例えば、MME及びS-GW)であってもよい。 A specific operation that is performed by a base station in the present disclosure may be performed by its upper node in some cases. In a network consisting of one or more network nodes with a base station, various operations performed for communication with a terminal may be performed by the base station and other network nodes other than the base station (e.g. MME or S-GW, etc., but not limited to). Although the case where there is one network node other than the base station is exemplified above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
 情報、信号(情報等)は、上位レイヤ(または下位レイヤ)から下位レイヤ(または上位レイヤ)へ出力され得る。複数のネットワークノードを介して入出力されてもよい。 Information, signals (information, etc.) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
 入出力された情報は、特定の場所(例えば、メモリ)に保存されてもよいし、管理テーブルを用いて管理してもよい。入出力される情報は、上書き、更新、または追記され得る。出力された情報は削除されてもよい。入力された情報は他の装置へ送信されてもよい。 Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input and output information may be overwritten, updated, or appended. The output information may be deleted. The entered information may be transmitted to other devices.
 判定は、1ビットで表される値(0か1か)によって行われてもよいし、真偽値(Boolean:trueまたはfalse)によって行われてもよいし、数値の比較(例えば、所定の値との比較)によって行われてもよい。 The determination may be made by a value represented by one bit (0 or 1), by a true/false value (Boolean: true or false), or by numerical comparison (for example, a predetermined value).
 本開示において説明した各態様/実施形態は単独で用いてもよいし、組み合わせて用いてもよいし、実行に伴って切り替えて用いてもよい。また、所定の情報の通知(例えば、「Xであること」の通知)は、明示的に行うものに限られず、暗黙的(例えば、当該所定の情報の通知を行わない)ことによって行われてもよい。 Each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching along with execution. In addition, the notification of predetermined information (for example, notification of “being X”) is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
 ソフトウェアは、ソフトウェア、ファームウェア、ミドルウェア、マイクロコード、ハードウェア記述言語と呼ばれるか、他の名称で呼ばれるかを問わず、命令、命令セット、コード、コードセグメント、プログラムコード、プログラム、サブプログラム、ソフトウェアモジュール、アプリケーション、ソフトウェアアプリケーション、ソフトウェアパッケージ、ルーチン、サブルーチン、オブジェクト、実行可能ファイル、実行スレッド、手順、機能などを意味するよう広く解釈されるべきである。 Software, whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
 また、ソフトウェア、命令、情報などは、伝送媒体を介して送受信されてもよい。例えば、ソフトウェアが、有線技術(同軸ケーブル、光ファイバケーブル、ツイストペア、デジタル加入者回線(Digital Subscriber Line:DSL)など)及び無線技術(赤外線、マイクロ波など)の少なくとも一方を使用してウェブサイト、サーバ、または他のリモートソースから送信される場合、これらの有線技術及び無線技術の少なくとも一方は、伝送媒体の定義内に含まれる。 In addition, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, the Software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to access websites, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
 本開示において説明した情報、信号などは、様々な異なる技術の何れかを使用して表されてもよい。例えば、上記の説明全体に渡って言及され得るデータ、命令、コマンド、情報、信号、ビット、シンボル、チップなどは、電圧、電流、電磁波、磁界若しくは磁性粒子、光場若しくは光子、またはこれらの任意の組み合わせによって表されてもよい。 The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
 なお、本開示において説明した用語及び本開示の理解に必要な用語については、同一のまたは類似する意味を有する用語と置き換えてもよい。例えば、チャネル及びシンボルの少なくとも一方は信号(シグナリング)であってもよい。また、信号はメッセージであってもよい。また、コンポーネントキャリア(Component Carrier:CC)は、キャリア周波数、セル、周波数キャリアなどと呼ばれてもよい。 The terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, the channel and/or symbols may be signaling. A signal may also be a message. A component carrier (CC) may also be called a carrier frequency, a cell, a frequency carrier, or the like.
 本開示において使用する「システム」及び「ネットワーク」という用語は、互換的に使用される。 The terms "system" and "network" used in this disclosure are used interchangeably.
 また、本開示において説明した情報、パラメータなどは、絶対値を用いて表されてもよいし、所定の値からの相対値を用いて表されてもよいし、対応する別の情報を用いて表されてもよい。例えば、無線リソースはインデックスによって指示されるものであってもよい。 In addition, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information. may be represented. For example, radio resources may be indexed.
 上述したパラメータに使用する名称はいかなる点においても限定的な名称ではない。さらに、これらのパラメータを使用する数式等は、本開示で明示的に開示したものと異なる場合もある。様々なチャネル(例えば、PUCCH、PDCCHなど)及び情報要素は、あらゆる好適な名称によって識別できるため、これらの様々なチャネル及び情報要素に割り当てている様々な名称は、いかなる点においても限定的な名称ではない。 The names used for the parameters described above are not restrictive names in any respect. Further, the formulas, etc., using these parameters may differ from those expressly disclosed in this disclosure. Since the various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable designation, the various designations assigned to these various channels and information elements are in no way restrictive designations. isn't it.
 本開示においては、「基地局(Base Station:BS)」、「無線基地局」、「固定局(fixed station)」、「NodeB」、「eNodeB(eNB)」、「gNodeB(gNB)」、「アクセスポイント(access point)」、「送信ポイント(transmission point)」、「受信ポイント(reception point)、「送受信ポイント(transmission/reception point)」、「セル」、「セクタ」、「セルグループ」、「キャリア」、「コンポーネントキャリア」などの用語は、互換的に使用され得る。基地局は、マクロセル、スモールセル、フェムトセル、ピコセルなどの用語で呼ばれる場合もある。 In the present disclosure, "base station (BS)", "radio base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", " "access point", "transmission point", "reception point", "transmission/reception point", "cell", "sector", "cell group", " Terms such as "carrier", "component carrier" may be used interchangeably. A base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
 基地局は、1つまたは複数(例えば、3つ)のセル(セクタとも呼ばれる)を収容することができる。基地局が複数のセルを収容する場合、基地局のカバレッジエリア全体は複数のより小さいエリアに区分でき、各々のより小さいエリアは、基地局サブシステム(例えば、屋内用の小型基地局(Remote Radio Head:RRH)によって通信サービスを提供することもできる。 A base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area corresponding to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head: RRH) can also provide communication services.
 「セル」または「セクタ」という用語は、このカバレッジにおいて通信サービスを行う基地局、及び基地局サブシステムの少なくとも一方のカバレッジエリアの一部または全体を指す。 The term "cell" or "sector" refers to part or all of the coverage area of at least one of a base station and base station subsystem that provides communication services in this coverage.
 本開示においては、「移動局(Mobile Station:MS)」、「ユーザ端末(user terminal)」、「ユーザ装置(User Equipment:UE)」、「端末」などの用語は、互換的に使用され得る。 In this disclosure, terms such as "Mobile Station (MS)", "user terminal", "User Equipment (UE)", "terminal" may be used interchangeably. .
 移動局は、当業者によって、加入者局、モバイルユニット、加入者ユニット、ワイヤレスユニット、リモートユニット、モバイルデバイス、ワイヤレスデバイス、ワイヤレス通信デバイス、リモートデバイス、モバイル加入者局、アクセス端末、モバイル端末、ワイヤレス端末、リモート端末、ハンドセット、ユーザエージェント、モバイルクライアント、クライアント、またはいくつかの他の適切な用語で呼ばれる場合もある。 A mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
 基地局及び移動局の少なくとも一方は、送信装置、受信装置、通信装置などと呼ばれてもよい。なお、基地局及び移動局の少なくとも一方は、移動体に搭載されたデバイス、移動体自体などであってもよい。当該移動体は、乗り物(例えば、車、飛行機など)であってもよいし、無人で動く移動体(例えば、ドローン、自動運転車など)であってもよいし、ロボット(有人型または無人型)であってもよい。なお、基地局及び移動局の少なくとも一方は、必ずしも通信動作時に移動しない装置も含む。例えば、基地局及び移動局の少なくとも一方は、センサなどのInternet of Things(IoT)機器であってもよい。 At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like. The mobile body may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile body (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ). Note that at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations. For example, at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
 また、本開示における基地局は、移動局(ユーザ端末、以下同)として読み替えてもよい。例えば、基地局及び移動局間の通信を、複数の移動局間の通信(例えば、Device-to-Device(D2D)、Vehicle-to-Everything(V2X)などと呼ばれてもよい)に置き換えた構成について、本開示の各態様/実施形態を適用してもよい。この場合、基地局が有する機能を移動局が有する構成としてもよい。また、「上り」及び「下り」などの文言は、端末間通信に対応する文言(例えば、「サイド(side)」)で読み替えられてもよい。例えば、上りチャネル、下りチャネルなどは、サイドチャネルで読み替えられてもよい。 Also, the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same). For example, communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.) Regarding the configuration, each aspect/embodiment of the present disclosure may be applied. In this case, the mobile station may have the functions that the base station has. Also, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be read as side channels.
 同様に、本開示における移動局は、基地局として読み替えてもよい。この場合、移動局が有する機能を基地局が有する構成としてもよい。
無線フレームは時間領域において1つまたは複数のフレームによって構成されてもよい。時間領域において1つまたは複数の各フレームはサブフレームと呼ばれてもよい。サブフレームはさらに時間領域において1つまたは複数のスロットによって構成されてもよい。サブフレームは、ニューメロロジー(numerology)に依存しない固定の時間長(例えば、1ms)であってもよい。
Similarly, mobile stations in the present disclosure may be read as base stations. In this case, the base station may have the functions that the mobile station has.
A radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be a fixed time length (eg, 1 ms) independent of numerology.
 ニューメロロジーは、ある信号またはチャネルの送信及び受信の少なくとも一方に適用される通信パラメータであってもよい。ニューメロロジーは、例えば、サブキャリア間隔(SubCarrier Spacing:SCS)、帯域幅、シンボル長、サイクリックプレフィックス長、送信時間間隔(Transmission Time Interval:TTI)、TTIあたりのシンボル数、無線フレーム構成、送受信機が周波数領域において行う特定のフィルタリング処理、送受信機が時間領域において行う特定のウィンドウイング処理などの少なくとも1つを示してもよい。 A numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, transmission and reception specific filtering operations performed by the receiver in the frequency domain, specific windowing operations performed by the transceiver in the time domain, and/or the like.
 スロットは、時間領域において1つまたは複数のシンボル(Orthogonal Frequency Division Multiplexing(OFDM))シンボル、Single Carrier Frequency Division Multiple Access(SC-FDMA)シンボルなど)で構成されてもよい。スロットは、ニューメロロジーに基づく時間単位であってもよい。 A slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. A slot may be a unit of time based on numerology.
 スロットは、複数のミニスロットを含んでもよい。各ミニスロットは、時間領域において1つまたは複数のシンボルによって構成されてもよい。また、ミニスロットは、サブスロットと呼ばれてもよい。ミニスロットは、スロットよりも少ない数のシンボルによって構成されてもよい。ミニスロットより大きい時間単位で送信されるPDSCH(またはPUSCH)は、PDSCH(またはPUSCH)マッピングタイプAと呼ばれてもよい。ミニスロットを用いて送信されるPDSCH(またはPUSCH)は、PDSCH(またはPUSCH)マッピングタイプBと呼ばれてもよい。 A slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) that is transmitted in time units larger than a minislot may be referred to as PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
 無線フレーム、サブフレーム、スロット、ミニスロット及びシンボルは、何れも信号を伝送する際の時間単位を表す。無線フレーム、サブフレーム、スロット、ミニスロット及びシンボルは、それぞれに対応する別の呼称が用いられてもよい。 Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
 例えば、1サブフレームは送信時間間隔(TTI)と呼ばれてもよいし、複数の連続したサブフレームがTTIと呼ばれてよいし、1スロットまたは1ミニスロットがTTIと呼ばれてもよい。つまり、サブフレーム及びTTIの少なくとも一方は、既存のLTEにおけるサブフレーム(1ms)であってもよいし、1msより短い期間(例えば、1-13シンボル)であってもよいし、1msより長い期間であってもよい。なお、TTIを表す単位は、サブフレームではなくスロット、ミニスロットなどと呼ばれてもよい。 For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, and one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, may be a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms may be Note that the unit representing the TTI may be called a slot, minislot, or the like instead of a subframe.
 ここで、TTIは、例えば、無線通信におけるスケジューリングの最小時間単位のことをいう。例えば、LTEシステムでは、基地局が各ユーザ端末に対して、無線リソース(各ユーザ端末において使用することが可能な周波数帯域幅、送信電力など)を、TTI単位で割り当てるスケジューリングを行う。なお、TTIの定義はこれに限られない。 Here, TTI refers to, for example, the minimum scheduling time unit in wireless communication. For example, in the LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis. Note that the definition of TTI is not limited to this.
 TTIは、チャネル符号化されたデータパケット(トランスポートブロック)、コードブロック、コードワードなどの送信時間単位であってもよいし、スケジューリング、リンクアダプテーションなどの処理単位となってもよい。なお、TTIが与えられたとき、実際にトランスポートブロック、コードブロック、コードワードなどがマッピングされる時間区間(例えば、シンボル数)は、当該TTIよりも短くてもよい。 The TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, codewords, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
 なお、1スロットまたは1ミニスロットがTTIと呼ばれる場合、1以上のTTI(すなわち、1以上のスロットまたは1以上のミニスロット)が、スケジューリングの最小時間単位となってもよい。また、当該スケジューリングの最小時間単位を構成するスロット数(ミニスロット数)は制御されてもよい。 If one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
 1msの時間長を有するTTIは、通常TTI(LTE Rel.8-12におけるTTI)、ノーマルTTI、ロングTTI、通常サブフレーム、ノーマルサブフレーム、ロングサブフレーム、スロットなどと呼ばれてもよい。通常TTIより短いTTIは、短縮TTI、ショートTTI、部分TTI(partialまたはfractional TTI)、短縮サブフレーム、ショートサブフレーム、ミニスロット、サブスロット、スロットなどと呼ばれてもよい。 A TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc. A TTI that is shorter than a regular TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and so on.
 なお、ロングTTI(例えば、通常TTI、サブフレームなど)は、1msを超える時間長を有するTTIで読み替えてもよいし、ショートTTI(例えば、短縮TTIなど)は、ロングTTIのTTI長未満かつ1ms以上のTTI長を有するTTIで読み替えてもよい。 In addition, long TTI (for example, normal TTI, subframe, etc.) may be read as TTI having a time length exceeding 1 ms, and short TTI (for example, shortened TTI, etc.) is less than the TTI length of long TTI and 1 ms. A TTI having a TTI length greater than or equal to this value may be read as a replacement.
 リソースブロック(RB)は、時間領域及び周波数領域のリソース割当単位であり、周波数領域において、1つまたは複数個の連続した副搬送波(subcarrier)を含んでもよい。RBに含まれるサブキャリアの数は、ニューメロロジーに関わらず同じであってもよく、例えば12であってもよい。RBに含まれるサブキャリアの数は、ニューメロロジーに基づいて決定されてもよい。 A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of neurology, and may be 12, for example. The number of subcarriers included in an RB may be determined based on neumerology.
 また、RBの時間領域は、1つまたは複数個のシンボルを含んでもよく、1スロット、1ミニスロット、1サブフレーム、または1TTIの長さであってもよい。1TTI、1サブフレームなどは、それぞれ1つまたは複数のリソースブロックで構成されてもよい。 Also, the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long. One TTI, one subframe, etc. may each consist of one or more resource blocks.
 なお、1つまたは複数のRBは、物理リソースブロック(Physical RB:PRB)、サブキャリアグループ(Sub-Carrier Group:SCG)、リソースエレメントグループ(Resource Element Group:REG)、PRBペア、RBペアなどと呼ばれてもよい。 One or more RBs are physical resource blocks (Physical RB: PRB), sub-carrier groups (SCG), resource element groups (REG), PRB pairs, RB pairs, etc. may be called.
 また、リソースブロックは、1つまたは複数のリソースエレメント(Resource Element:RE)によって構成されてもよい。例えば、1REは、1サブキャリア及び1シンボルの無線リソース領域であってもよい。 In addition, a resource block may be composed of one or more resource elements (Resource Element: RE). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
 帯域幅部分(Bandwidth Part:BWP)(部分帯域幅などと呼ばれてもよい)は、あるキャリアにおいて、あるニューメロロジー用の連続する共通RB(common resource blocks)のサブセットのことを表してもよい。ここで、共通RBは、当該キャリアの共通参照ポイントを基準としたRBのインデックスによって特定されてもよい。PRBは、あるBWPで定義され、当該BWP内で番号付けされてもよい。 A Bandwidth Part (BWP) (which may also be called a Bandwidth Part) represents a subset of contiguous common resource blocks (RBs) for a neumerology in a carrier. good. Here, the common RB may be identified by an RB index based on the common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.
 BWPには、UL用のBWP(UL BWP)と、DL用のBWP(DL BWP)とが含まれてもよい。UEに対して、1キャリア内に1つまたは複数のBWPが設定されてもよい。 BWP may include BWP for UL (UL BWP) and BWP for DL (DL BWP). One or more BWPs may be configured in one carrier for a UE.
 設定されたBWPの少なくとも1つがアクティブであってもよく、UEは、アクティブなBWPの外で所定の信号/チャネルを送受信することを想定しなくてもよい。なお、本開示における「セル」、「キャリア」などは、「BWP」で読み替えられてもよい。 At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be read as "BWP".
 上述した無線フレーム、サブフレーム、スロット、ミニスロット及びシンボルなどの構造は例示に過ぎない。例えば、無線フレームに含まれるサブフレームの数、サブフレームまたは無線フレームあたりのスロットの数、スロット内に含まれるミニスロットの数、スロットまたはミニスロットに含まれるシンボル及びRBの数、RBに含まれるサブキャリアの数、並びにTTI内のシンボル数、シンボル長、サイクリックプレフィックス(Cyclic Prefix:CP)長などの構成は、様々に変更することができる。 The structures such as radio frames, subframes, slots, minislots and symbols described above are only examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc. can be varied.
 「接続された(connected)」、「結合された(coupled)」という用語、またはこれらのあらゆる変形は、2またはそれ以上の要素間の直接的または間接的なあらゆる接続または結合を意味し、互いに「接続」または「結合」された2つの要素間に1またはそれ以上の中間要素が存在することを含むことができる。要素間の結合または接続は、物理的なものであっても、論理的なものであっても、或いはこれらの組み合わせであってもよい。例えば、「接続」は「アクセス」で読み替えられてもよい。本開示で使用する場合、2つの要素は、1またはそれ以上の電線、ケーブル及びプリント電気接続の少なくとも一つを用いて、並びにいくつかの非限定的かつ非包括的な例として、無線周波数領域、マイクロ波領域及び光(可視及び不可視の両方)領域の波長を有する電磁エネルギーなどを用いて、互いに「接続」または「結合」されると考えることができる。 The terms "connected," "coupled," or any variation thereof mean any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being "connected" or "coupled." Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access". As used in this disclosure, two elements are defined using at least one of one or more wires, cables and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and light (both visible and invisible) regions, and the like.
 参照信号は、Reference Signal(RS)と略称することもでき、適用される標準によってパイロット(Pilot)と呼ばれてもよい。 The reference signal can also be abbreviated as Reference Signal (RS), and may also be called Pilot depending on the applicable standard.
 本開示において使用する「に基づいて」という記載は、別段に明記されていない限り、「のみに基づいて」を意味しない。言い換えれば、「に基づいて」という記載は、「のみに基づいて」と「に少なくとも基づいて」の両方を意味する。 The term "based on" as used in this disclosure does not mean "based only on" unless otherwise specified. In other words, the phrase "based on" means both "based only on" and "based at least on."
 上記の各装置の構成における「手段」を、「部」、「回路」、「デバイス」等に置き換えてもよい。 "Means" in the configuration of each device described above may be replaced with "unit", "circuit", "device", or the like.
 本開示において使用する「第1」、「第2」などの呼称を使用した要素へのいかなる参照も、それらの要素の量または順序を全般的に限定しない。これらの呼称は、2つ以上の要素間を区別する便利な方法として本開示において使用され得る。したがって、第1及び第2の要素への参照は、2つの要素のみがそこで採用され得ること、または何らかの形で第1の要素が第2の要素に先行しなければならないことを意味しない。 Any reference to elements using the "first," "second," etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, references to first and second elements do not imply that only two elements may be employed therein or that the first element must precede the second element in any way.
 本開示において、「含む(include)」、「含んでいる(including)」及びそれらの変形が使用されている場合、これらの用語は、用語「備える(comprising)」と同様に、包括的であることが意図される。さらに、本開示において使用されている用語「または(or)」は、排他的論理和ではないことが意図される。 Where "include," "including," and variations thereof are used in this disclosure, these terms are inclusive, as is the term "comprising." is intended. Furthermore, the term "or" as used in this disclosure is not intended to be an exclusive OR.
 本開示において、例えば、英語でのa, an及びtheのように、翻訳により冠詞が追加された場合、本開示は、これらの冠詞の後に続く名詞が複数形であることを含んでもよい。 In this disclosure, if articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are plural.
 本開示で使用する「判断(determining)」、「決定(determining)」という用語は、多種多様な動作を包含する場合がある。「判断」、「決定」は、例えば、判定(judging)、計算(calculating)、算出(computing)、処理(processing)、導出(deriving)、調査(investigating)、探索(looking up、search、inquiry)(例えば、テーブル、データベース又は別のデータ構造での探索)、確認(ascertaining)した事を「判断」「決定」したとみなす事などを含み得る。また、「判断」、「決定」は、受信(receiving)(例えば、情報を受信すること)、送信(transmitting)(例えば、情報を送信すること)、入力(input)、出力(output)、アクセス(accessing)(例えば、メモリ中のデータにアクセスすること)した事を「判断」「決定」したとみなす事などを含み得る。また、「判断」、「決定」は、解決(resolving)、選択(selecting)、選定(choosing)、確立(establishing)、比較(comparing)などした事を「判断」「決定」したとみなす事を含み得る。つまり、「判断」「決定」は、何らかの動作を「判断」「決定」したとみなす事を含み得る。また、「判断(決定)」は、「想定する(assuming)」、「期待する(expecting)」、「みなす(considering)」などで読み替えられてもよい。 The terms "determining" and "determining" used in this disclosure may encompass a wide variety of actions. "Judgement" and "determination" are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as "judged" or "determined", and the like. Also, "judgment" and "determination" are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment" or "decision" has been made. In addition, "judgment" and "decision" are considered to be "judgment" and "decision" by resolving, selecting, choosing, establishing, comparing, etc. can contain. In other words, "judgment" and "decision" may include considering that some action is "judgment" and "decision". Also, "judgment (decision)" may be read as "assuming", "expecting", "considering", or the like.
 本開示において、「AとBが異なる」という用語は、「AとBが互いに異なる」ことを意味してもよい。なお、当該用語は、「AとBがそれぞれCと異なる」ことを意味してもよい。「離れる」、「結合される」などの用語も、「異なる」と同様に解釈されてもよい。 In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean that "A and B are different from C". Terms such as "separate," "coupled," etc. may also be interpreted in the same manner as "different."
 図16は、車両2001の構成例を示す。図16に示すように、車両2001は、駆動部2002、操舵部2003、アクセルペダル2004、ブレーキペダル2005、シフトレバー2006、左右の前輪2007、左右の後輪2008、車軸2009、電子制御部2010、各種センサ2021~2029、情報サービス部2012と通信モジュール2013を備える。 FIG. 16 shows a configuration example of a vehicle 2001. FIG. As shown in FIG. 16, a vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, an electronic control unit 2010, It has various sensors 2021 to 2029, an information service unit 2012 and a communication module 2013.
 駆動部2002は、例えば、エンジン、モータ、エンジンとモータのハイブリッドで構成される。 The driving unit 2002 is composed of, for example, an engine, a motor, or a hybrid of the engine and the motor.
 操舵部2003は、少なくともステアリングホイール(ハンドルとも呼ぶ)を含み、ユーザによって操作されるステアリングホイールの操作に基づいて前輪及び後輪の少なくとも一方を操舵するように構成される。 The steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels and rear wheels based on the operation of the steering wheel operated by the user.
 電子制御部2010は、マイクロプロセッサ2031、メモリ(ROM、RAM)2032、通信ポート(IOポート)2033で構成される。電子制御部2010には、車両に備えられた各種センサ2021~2027からの信号が入力される。電子制御部2010は、ECU(Electronic Control Unit)と呼んでもよい。 The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010 . The electronic control unit 2010 may be called an ECU (Electronic Control Unit).
 各種センサ2021~2028からの信号としては、モータの電流をセンシングする電流センサ2021からの電流信号、回転数センサ2022によって取得された前輪や後輪の回転数信号、空気圧センサ2023によって取得された前輪や後輪の空気圧信号、車速センサ2024によって取得された車速信号、加速度センサ2025によって取得された加速度信号、アクセルペダルセンサ2029によって取得されたアクセルペダルの踏み込み量信号、ブレーキペダルセンサ2026によって取得されたブレーキペダルの踏み込み量信号、シフトレバーセンサ2027によって取得されたシフトレバーの操作信号、物体検知センサ2028によって取得された障害物、車両、歩行者などを検出するための検出信号などがある。 The signals from various sensors 2021 to 2028 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, and the front wheel obtained by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
 情報サービス部2012は、カーナビゲーションシステム、オーディオシステム、スピーカ、テレビ、ラジオといった、運転情報、交通情報、エンターテイメント情報等の各種情報を提供するための各種機器と、これらの機器を制御する1つ以上のECUとから構成される。情報サービス部2012は、外部装置から通信モジュール2013等を介して取得した情報を利用して、車両1の乗員に各種マルチメディア情報及びマルチメディアサービスを提供する。 The information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. It consists of an ECU and The information service unit 2012 uses information acquired from an external device via the communication module 2013 and the like to provide passengers of the vehicle 1 with various multimedia information and multimedia services.
 運転支援システム部2030は、ミリ波レーダ、LiDAR(Light Detection and Ranging)、カメラ、測位ロケータ(例えば、GNSSなど)、地図情報(例えば、高精細(HD)マップ、自動運転車(AV)マップなど)、ジャイロシステム(例えば、IMU(Inertial Measurement Unit)、INS(Inertial Navigation System)など)、AI(Artificial Intelligence)チップ、AIプロセッサといった、事故を未然に防止したりドライバの運転負荷を軽減したりするための機能を提供するための各種機器と、これらの機器を制御する1つ以上のECUとから構成される。また、運転支援システム部2030は、通信モジュール2013を介して各種情報を送受信し、運転支援機能または自動運転機能を実現する。 Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g. GNSS), map information (e.g. high-definition (HD) map, autonomous vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors to prevent accidents and reduce the driver's driving load. and one or more ECUs that control these devices. In addition, the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.
 通信モジュール2013は通信ポートを介して、マイクロプロセッサ2031及び車両1の構成要素と通信することができる。例えば、通信モジュール2013は通信ポート2033を介して、車両2001に備えられた駆動部2002、操舵部2003、アクセルペダル2004、ブレーキペダル2005、シフトレバー2006、左右の前輪2007、左右の後輪2008、車軸2009、電子制御部2010内のマイクロプロセッサ2031及びメモリ(ROM、RAM)2032、センサ2021~2028との間でデータを送受信する。 The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via communication ports. For example, the communication module 2013 communicates with the vehicle 2001 through a communication port 2033 a driving unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, Data is sent and received between axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in electronic control unit 2010, and sensors 2021-2028.
 通信モジュール2013は、電子制御部2010のマイクロプロセッサ2031によって制御可能であり、外部装置と通信を行うことが可能な通信デバイスである。例えば、外部装置との間で無線通信を介して各種情報の送受信を行う。通信モジュール2013は、電子制御部2010の内部と外部のどちらにあってもよい。外部装置は、例えば、基地局、移動局等であってもよい。 The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from an external device via wireless communication. Communication module 2013 may be internal or external to electronic control 2010 . The external device may be, for example, a base station, a mobile station, or the like.
 通信モジュール2013は、電子制御部2010に入力された電流センサからの電流信号を、無線通信を介して外部装置へ送信する。また、通信モジュール2013は、電子制御部2010に入力された、回転数センサ2022によって取得された前輪や後輪の回転数信号、空気圧センサ2023によって取得された前輪や後輪の空気圧信号、車速センサ2024によって取得された車速信号、加速度センサ2025によって取得された加速度信号、アクセルペダルセンサ2029によって取得されたアクセルペダルの踏み込み量信号、ブレーキペダルセンサ2026によって取得されたブレーキペダルの踏み込み量信号、シフトレバーセンサ2027によって取得されたシフトレバーの操作信号、物体検知センサ2028によって取得された障害物、車両、歩行者などを検出するための検出信号などについても無線通信を介して外部装置へ送信する。 The communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to the external device via wireless communication. In addition, the communication module 2013 receives, from the electronic control unit 2010, the rotation speed signals of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signals of the front and rear wheels obtained by the air pressure sensor 2023, and the vehicle speed sensor. 2024, the acceleration signal obtained by the acceleration sensor 2025, the accelerator pedal depression amount signal obtained by the accelerator pedal sensor 2029, the brake pedal depression amount signal obtained by the brake pedal sensor 2026, and the shift lever. A shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.
 通信モジュール2013は、外部装置から送信されてきた種々の情報(交通情報、信号情報、車間情報など)を受信し、車両に備えられた情報サービス部2012へ表示する。また、通信モジュール2013は、外部装置から受信した種々の情報をマイクロプロセッサ2031によって利用可能なメモリ2032へ記憶する。メモリ2032に記憶された情報に基づいて、マイクロプロセッサ2031が車両2001に備えられた駆動部2002、操舵部2003、アクセルペダル2004、ブレーキペダル2005、シフトレバー2006、左右の前輪2007、左右の後輪2008、車軸2009、センサ2021~2028などの制御を行ってもよい。 The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices and displays it on the information service unit 2012 provided in the vehicle. Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 . Based on the information stored in the memory 2032, the microprocessor 2031 controls the driving unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the left and right front wheels 2007, and the left and right rear wheels provided in the vehicle 2001. 2008, axle 2009, sensors 2021-2028, etc. may be controlled.
 以上、本開示について詳細に説明したが、当業者にとっては、本開示が本開示中に説明した実施形態に限定されるものではないということは明らかである。本開示は、請求の範囲の記載により定まる本開示の趣旨及び範囲を逸脱することなく修正及び変更態様として実施することができる。したがって、本開示の記載は、例示説明を目的とするものであり、本開示に対して何ら制限的な意味を有するものではない。 Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be practiced with modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Accordingly, the description of the present disclosure is for illustrative purposes and is not meant to be limiting in any way.
 10 無線通信システム
 20 NG-RAN
 40 コアネットワーク
 45 スライス
 50 AMF
 100 gNB
 110 無線通信部
 120 ANR機能部
 130 UE接続制御部
 140 制御部
 200 UE
 210 無線通信部
 220 接続実行部
 230 スライス関連情報処理部
 240 制御部
 1001 プロセッサ
 1002 メモリ
 1003 ストレージ
 1004 通信装置
 1005 入力装置
 1006 出力装置
 1007 バス
 2001 車両
 2002 駆動部
 2003 操舵部
 2004 アクセルペダル
 2005 ブレーキペダル
 2006 シフトレバー
 2007 左右の前輪
 2008 左右の後輪
 2009 車軸
 2010 電子制御部
 2012 情報サービス部
 2013 通信モジュール
 2021 電流センサ
 2022 回転数センサ
 2023 空気圧センサ
 2024 車速センサ
 2025 加速度センサ
 2026 ブレーキペダルセンサ
 2027 シフトレバーセンサ
 2028 物体検出センサ
 2029 アクセルペダルセンサ
 2030 運転支援システム部
 2031 マイクロプロセッサ
 2032 メモリ(ROM, RAM)
 2033 通信ポート
10 Radio communication system 20 NG-RAN
40 core network 45 slices 50 AMF
100 gNB
110 Radio communication unit 120 ANR function unit 130 UE connection control unit 140 Control unit 200 UE
210 wireless communication unit 220 connection execution unit 230 slice related information processing unit 240 control unit 1001 processor 1002 memory 1003 storage 1004 communication device 1005 input device 1006 output device 1007 bus 2001 vehicle 2002 driving unit 2003 steering unit 2004 accelerator pedal 2005 brake pedal 2006 Lever 2007 Left and right front wheels 2008 Left and right rear wheels 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 Revolution sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection Sensor 2029 Accelerator pedal sensor 2030 Driving support system 2031 Microprocessor 2032 Memory (ROM, RAM)
2033 communication port

Claims (5)

  1.  近隣セルの関連付けを制御する制御部と、
     ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信する送信部と
    を備える端末。
    a controller for controlling neighbor cell association;
    a transmitting unit configured to transmit neighboring cell information including information on slices into which a network is divided into specific units to the network.
  2.  前記送信部は、前記スライスまたは前記スライスのグループの識別情報を含む前記近隣セル情報を送信する請求項1に記載の端末。 The terminal according to claim 1, wherein the transmitting unit transmits the neighboring cell information including identification information of the slice or the group of slices.
  3.  端末と、無線基地局とを含む無線通信システムであって、
     前記端末は、
     近隣セルの関連付けを制御する制御部と、
     ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信する送信部と
    を備え、
     前記無線基地局は、前記近隣セル情報を受信する受信部を備える無線通信システム。
    A wireless communication system including a terminal and a wireless base station,
    The terminal is
    a controller for controlling neighbor cell association;
    a transmitting unit that transmits neighboring cell information including information on slices in which the network is divided into specific units to the network;
    A radio communication system in which the radio base station includes a receiver that receives the neighboring cell information.
  4.  前記無線基地局は、前記無線基地局がサポートする前記スライスの情報を他の無線基地局と交換する制御部を備える請求項3に記載の無線通信システム。 The wireless communication system according to claim 3, wherein the wireless base station includes a control unit that exchanges information on the slices supported by the wireless base station with other wireless base stations.
  5.  端末が、近隣セルの関連付けを制御するステップと、
     前記端末が、ネットワークが特定の単位で分割されたスライスの情報を含む近隣セル情報を前記ネットワークに送信するステップと、
     前記ネットワークが、前記近隣セル情報を受信するステップと
    を含む無線通信方法。
    a terminal controlling neighbor cell association;
    a step of the terminal transmitting neighboring cell information including information on slices into which the network is divided into specific units to the network;
    and said network receiving said neighboring cell information.
PCT/JP2021/034906 2021-09-22 2021-09-22 Terminal, wireless communication system, and wireless communication method WO2023047502A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018190070A1 (en) * 2017-04-12 2018-10-18 日本電気株式会社 First base station, second base station, terminal device, method, program, and recording medium
JP2020092453A (en) * 2016-08-12 2020-06-11 日本電気株式会社 Communication system supporting network slicing

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Publication number Priority date Publication date Assignee Title
JP2020092453A (en) * 2016-08-12 2020-06-11 日本電気株式会社 Communication system supporting network slicing
WO2018190070A1 (en) * 2017-04-12 2018-10-18 日本電気株式会社 First base station, second base station, terminal device, method, program, and recording medium

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