WO2021090502A1 - Terminal - Google Patents

Terminal Download PDF

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Publication number
WO2021090502A1
WO2021090502A1 PCT/JP2019/044010 JP2019044010W WO2021090502A1 WO 2021090502 A1 WO2021090502 A1 WO 2021090502A1 JP 2019044010 W JP2019044010 W JP 2019044010W WO 2021090502 A1 WO2021090502 A1 WO 2021090502A1
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WIPO (PCT)
Prior art keywords
access
network
terminal
information
category
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PCT/JP2019/044010
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French (fr)
Japanese (ja)
Inventor
真央樹 彦坂
淳 巳之口
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to CN201980101869.6A priority Critical patent/CN114631340B/en
Priority to PCT/JP2019/044010 priority patent/WO2021090502A1/en
Publication of WO2021090502A1 publication Critical patent/WO2021090502A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present invention relates to a terminal that executes access control according to network access restrictions.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • 5th generation mobile communication system for the purpose of further speeding up LTE.
  • Specifications also called 5G, New Radio (NR) or Next Generation (NG) are also underway.
  • Unified Access Control is defined as a means of restricting access to the network of terminals (User Equipment, UE) (Non-Patent Document 1 and Non-Patent Document 2).
  • Access regulation regulates access to the network from the terminal by notifying the terminal using notification information such as the communication request type subject to regulation, the type of terminal setting subject to regulation, and the regulation rate in the event of network congestion or failure. It is a way to make it.
  • UAC is a collection of a wide variety of access control methods such as LTE Access Class Barring (ACB) and Service Specific Access Control (SSAC). UAC can enforce regulations for each access category.
  • ABB LTE Access Class Barring
  • SSAC Service Specific Access Control
  • IP Multimedia Subsystem IMS registration-related signaling (Voice over LTE (VoLTE)) is used for category 9, which is one of the access categories (AC) reserved for future expansion.
  • IMS IP Multimedia Subsystem
  • NAS Non-Access-Stratum
  • a terminal that supports only Release-16 or later Release (referred to as a new generation terminal (UE) as appropriate) is a network that supports only Release-15 or earlier Release (old generation network (old generation network).
  • NW access network
  • the present invention has been made in view of such a situation, and can operate appropriately even when accessing a network supporting an old release by using a new access attribute such as an extended access category.
  • the purpose is to provide terminals.
  • a terminal which is a receiving unit (wireless receiving unit 220) that receives information related to access control supported by the network from a network (NG-RAN20), and the related unit.
  • a control unit access control unit 260 that determines an access attribute to be used when accessing the network is provided based on the information, and the control unit accesses the network as the terminal having the determined access attribute. To execute.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10.
  • FIG. 2 is a functional block configuration diagram of the UE 200.
  • FIG. 3 is a diagram showing a configuration example of the protocol stack of UE200 regarding access control to the network.
  • FIG. 4 is an explanatory diagram of issues related to access regulation when old and new releases are mixed.
  • FIG. 5 is a diagram showing an operation example related to access regulation in the wireless communication system 10.
  • FIG. 6 is a diagram showing an access control operation flow of the UE 200 according to the access regulation by the network.
  • FIG. 7 is a diagram showing a configuration example of an access category conversion table and broadcast information from the network.
  • FIG. 8 is a diagram showing an example of the hardware configuration of the UE 200.
  • FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10 according to the present embodiment.
  • the wireless communication system 10 is a wireless communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20, and a terminal 200 (hereinafter, UE200)).
  • NR 5G New Radio
  • NG-RAN20 Next Generation-Radio Access Network
  • UE200 terminal 200
  • NG-RAN20 includes a radio base station 100 (hereinafter, gNB100).
  • gNB100 radio base station 100
  • the specific configuration of the wireless communication system 10 including the number of gNBs and UEs is not limited to the example shown in FIG.
  • the NG-RAN20 actually includes multiple NG-RANNodes, specifically gNB (or ng-eNB), and is connected to a core network (5GC, not shown) according to 5G.
  • NG-RAN20 and 5GC may be simply expressed as a network.
  • GNB100 is a wireless base station that complies with 5G, and executes wireless communication according to UE200 and 5G.
  • the gNB100 and UE200 include Massive MIMO, which generates a beam with higher directivity by controlling radio signals transmitted from multiple antenna elements, and carrier aggregation (CA), which uses multiple component carriers (CC) in a bundle. It can also support dual connectivity (DC), which communicates simultaneously between the UE and multiple NG-RAN Nodes.
  • Massive MIMO which generates a beam with higher directivity by controlling radio signals transmitted from multiple antenna elements
  • CA carrier aggregation
  • DC dual connectivity
  • UE200 supports Release-16 (new release) of 3GPP (in other words, it corresponds to Release-16).
  • NG-RAN20 including gNB100 and 5GC (core network) support Release-15 (old release) (in other words, it corresponds to Release-15).
  • the UE 200 is appropriately referred to as a new generation terminal, and the network including the NG-RAN 20 and 5GC is appropriately referred to as an old generation network.
  • Unified Access Control is applied as a means of restricting access to the UE200 network.
  • UAC unifies multiple regulatory controls in LTE.
  • various communication requests in the terminal are mapped to one Access Category (AC) and one or more Access Identity.
  • the radio base station can regulate access for each combination.
  • Tables 1 and 2 show the Access Category and Access Identity specified in Release-15 of 3GPP (NR), respectively.
  • Access Category is an identifier for the communication request type. A different number is assigned to each communication request in the terminal, and an area that can be defined independently by the operator is also defined.
  • Access Identity is an identifier for terminal settings. Different numbers are assigned to terminals set as terminals for MPS (Multimedia Priority Service) calls, MCS (Mission Critical Service) calls, and priority calls (Access Class 11 to 15), and the others are uniformly set to "0". There is.
  • MPS Multimedia Priority Service
  • MCS Mobility Critical Service
  • priority calls Access Class 11 to 15
  • MPS is a service that enables specific communication to be provided to terminals even when the network is congested.
  • MCS is a service that can have a serious adverse effect on life and society due to system failure or service interruption.
  • Access Category 9 to 31 in case a new category is specified in the future.
  • Access Identity 3 to 10 are also reserved.
  • IP Multimedia Subsystem (IMS) registration-related signaling (control signal for Voice over LTE (VoLTE)) is assigned to the reserved category 9.
  • IMS IP Multimedia Subsystem
  • the new Indication is notified from the IMS layer (the layer responsible for controlling VoLTE) to the Non-Access Stratum (NAS) layer (which determines the Access Category), and is mapped to the new category 9 in the NAS layer.
  • IMS the layer responsible for controlling VoLTE
  • NAS Non-Access Stratum
  • FIG. 2 is a functional block configuration diagram of the UE 200.
  • the UE 200 includes a wireless transmission unit 210, a wireless reception unit 220, a network information acquisition unit 230, a support determination unit 240, a table holding unit 250, and an access control unit 260.
  • the wireless transmitter 210 transmits an uplink signal (UL signal) according to NR. Further, the wireless receiving unit 220 receives the downlink signal (DL signal) according to the NR.
  • UL signal uplink signal
  • DL signal downlink signal
  • the wireless receiver 220 can receive information related to access regulation from the network.
  • the wireless receiving unit 220 constitutes a receiving unit.
  • the wireless receiver 220 receives the information related to the access regulation supported by the network including the NG-RAN20 via the gNB100.
  • Access regulation-related information is typically the access category supported by the network (which can be rephrased as the communication request type), but the release supported by the network (which can be rephrased as the version). There may be. This is because, as described above, the supported access categories can be determined from the releases supported by the network.
  • the access category display may be a list of numbers or the maximum value of the supported access categories.
  • the information related to access regulation may include the terminal setting types supported by the network.
  • the network information acquisition unit 230 acquires information related to the network via the wireless reception unit 220. Specifically, the network information acquisition unit 230 can acquire information related to the above-mentioned access regulation.
  • the network information acquisition unit 230 may acquire the related information in the location registration procedure (Registration Accept) of the UE 200, or general broadcast information (may be called system information). The relevant information contained in may be acquired.
  • the support determination unit 240 determines the support status of various services and functions provided by the network. In particular, in the present embodiment, the support determination unit 240 can determine the access category supported by the network.
  • the support determination unit 240 determines the access category supported by the network based on the access regulation related information acquired by the network information acquisition unit 230.
  • the table holding unit 250 holds a table used for access control according to network access restrictions. Specifically, the table holding unit 250 holds a table (conversion table) used when changing the access category of the UE 200 to an access category supported by the network (which may be called conversion). A specific example of the table will be described later.
  • the access control unit 260 controls each functional block that constitutes the UE 200.
  • the access control unit 260 can determine the access attribute to be used when accessing the network of the UE 200 based on the information related to the access regulation acquired by the network information acquisition unit 230.
  • the access control unit 260 constitutes a control unit.
  • the access attribute may be the access category used by the UE 200 when accessing the network as described above, or may be the terminal setting type (Access Identity). Alternatively, it may be interpreted as the release used by the UE 200 when accessing the network, or as the access type (RRC establishment cause) used in the AS layer.
  • the access control unit 260 can execute access to the network as an access according to the determined access attribute.
  • the access control unit 260 determines that the network is an old generation network and does not support category 9, it accesses one of the categories supported by the network (for example, category 4 (voice call)). After changing the attributes, access the network.
  • category 4 voice call
  • the access control unit 260 can change the access category of the UE 200 to the access category supported by the network based on the information related to the access regulation acquired by the network information acquisition unit 230.
  • the access control unit 260 can also change the access category based on a table (held by the table holding unit 250) showing the association between the access category of the terminal and the access category supported by the network. it can. However, the table is not always required to change the access category.
  • the access control unit 260 may change the access category by using a fixed mapping of the access category (for example, a mapping from category 9 to category 4).
  • the access control unit 260 also changes the terminal setting type (Access Identity) used by the UE 200 to the terminal setting type supported by the network based on the information related to the access regulation. May be good.
  • Terminal setting type Access Identity
  • the table holding unit 250 holds a table showing the association between the terminal setting type used by the terminal and the terminal setting type supported by the network, and the access control unit 260 based on the table.
  • the terminal setting type may be changed.
  • FIG. 3 shows a configuration example of the UE200 protocol stack for access control to the network.
  • the example shown in FIG. 3 is an example of VoLTE, and the UE200 executes VoLTE control using each layer of Access Stratum (AS), NAS and IP Multimedia Subsystem (IMS) regarding access control to the network.
  • AS Access Stratum
  • IMS IP Multimedia Subsystem
  • the IMS layer detects the transmission of the VoLTE control signal and starts registration-related signaling (control signal for Voice over LTE (VoLTE)). Further, in the present embodiment, as described above, the communication request is mapped to category 9 (which may be referred to as a new generation access category), and the NAS layer maps the communication request to category 9. ..
  • the AS layer determines whether or not access restrictions are applied based on the category (9) and call type notified from the NAS layer. In addition, the AS layer notifies the NAS of the result of access restrictions.
  • the UE200 includes a plurality of layers (physical layer, medium access control layer (MAC), wireless link control layer (RLC), and packet data convergence protocol layer (PDCP)). Etc.) and so on.
  • layers physical layer, medium access control layer (MAC), wireless link control layer (RLC), and packet data convergence protocol layer (PDCP)). Etc. and so on.
  • FIG. 4 is an explanatory diagram of issues related to access regulation when old and new releases are mixed. As shown in FIG. 4, and as described above, when the old generation network regulates only the old generation access category for the new generation terminal, the new generation terminal is not notified from the network. Attempt access using the generation access category.
  • the new generation terminal can access the old generation network (outgoing processing). Then, the access of the new generation terminal, which is originally subject to the access regulation by the operator, breaks through the access regulation by the network unlike the intention of the operator.
  • the gNB100 notifies the UE200 of the regulated Access Identity and the regulated parameters for each Access Category by MSI (Minimum System Information).
  • the UE200 determines the necessity of regulation based on Access Category and Access Identity each time a communication request is generated, and if regulation is required, performs regulation operation according to the set parameter value.
  • the target of access regulation control was mainly only terminals in RRC_IDLE state, but in NR, all terminals in RRC state can be regulated, and more detailed access regulation is realized.
  • UE200 internally generates a random number (rand), and if rand is smaller than uac-BarringFactor (included in the broadcast information), it does not regulate, and if it is larger, it regulates.
  • UE200 calculates a parameter called Tbarring from the following formula.
  • Tbarring (0.7 + 0.6 * rand) * uac-BarringTime
  • UE200 regulates when there is a request to establish RRC Connection while Tbarring is running.
  • the terminal uses different access categories even if they have the same access, based on the access categories supported by the network.
  • FIG. 5 shows an operation example related to access regulation in the wireless communication system 10. Further, FIG. 6 shows an access control operation flow of the UE 200 according to the access regulation by the network.
  • FIG. 5 shows an example in which UE200 acquires information on access categories supported by the network in location registration to the network including NG-RAN20 and 5GC.
  • UE200 sends a Registration Request to the network.
  • the Registration Request is sent to the Access and Mobility Management Function (AMF) in the core network.
  • AMF Access and Mobility Management Function
  • the network includes information on the access categories supported by the network in the Registration Accept that notifies that the registration of UE200 has been accepted based on the Registration Request.
  • the new generation terminal maps (changes) access categories that the network (old generation network) does not support to the old generation access categories.
  • the new generation terminal UE200
  • the UE200 acquires the information of the access category supported by the network (S10).
  • the access category information may be a list of numbers or the maximum value of the supported access categories.
  • UE200 determines whether or not the network supports the new generation access category based on the acquired access category information (S20).
  • the UE200 maps to the new generation access category (for example, category 9) as it is when using the new generation access category (S30).
  • the UE200 maps to the old generation access category (eg, category 4) even when using the new generation access category (S40). .. That is, the UE200 converts from the new generation access category to the old generation access category.
  • UE200 executes access control based on the mapped access category (S50).
  • FIG. 7 shows a configuration example of the access category conversion table and the notification information from the network.
  • the conversion table shown in FIG. 7 can be used in step S40 shown in FIG.
  • the conversion table 251 shows the association between the new generation (described as version M) Access Category (AC) and the old generation (described as version N) Access Category.
  • AC3 to 7 do not change between versions M and N, but AC9 is converted to AC4.
  • the broadcast information from the network shown on the right side of FIG. 7 (which may be the Registration Accept described above) follows version N (for example, Release-15). For this reason, the new generation of Access Category is not specified.
  • the notification information may include information associating each AC with the index of the regulation parameter.
  • Regulatory parameters may include regulation rate and regulation time (time when access regulation is applied to UE200).
  • the conversion table from version M for example, Release-16
  • version N for example, Release-16
  • the version of the table should be increased each time the access category defined as the standard increases. You may. For example, Release-15 may be version 0, and Release-16 may be version 1 or the like because category 9 is added as described above.
  • the notification information may include the version number for version 1 (M) or later.
  • the NAS layer determines the access category number based on the version to which it complies, and inquires the AS layer about the existence of restrictions.
  • the AS layer selects the corresponding conversion table from the version number of the broadcast information and converts the access category number. Subsequent operations, including access control, are performed according to this converted access category number.
  • the following action / effect can be obtained.
  • the UE 200 receives the related information of the access regulation supported by the network, and determines the access attribute such as the access category to be used when accessing the network based on the received related information.
  • UE200 executes access to the network as access according to the determined access attribute.
  • the UE 200 can change the access category of the UE 200 to the access category supported by the previous generation network based on the related information of the access regulation supported by the network. Therefore, even if the UE 200 accesses the old generation network in an access category that the old generation network does not support, the access restriction for the UE 200 can be surely applied.
  • the UE 200 can use a table (conversion table 251) showing the association between the access category of the terminal and the access category supported by the network. Therefore, the access category can be changed easily and flexibly.
  • the UE200 is not limited to the access category, but also for the terminal setting type (AccessIdentity), the terminal setting that the network supports the call type used by the UE200 based on the information related to the access regulation. You may change it to the type. Further, in this case, a table showing the association between the terminal setting type used by the terminal and the terminal setting type supported by the network can also be used.
  • the terminal setting type AccessIdentity
  • a table showing the association between the terminal setting type used by the terminal and the terminal setting type supported by the network can also be used.
  • the terminal setting type may be called by another name such as access identification information or mobile device type.
  • Registration Accept or notification information as a method of notifying the related information of the access regulation supported by the network has been described, but the related information should be included in the following message. You may.
  • -CONFIGURATION UPDATE COMMAND (message to update terminal settings)
  • -DL NAS TRANSPORT (message that sends a container of data to the terminal)
  • -RRC Connection setup (signal from the network side to establish wireless resources)
  • -RRC Connection reconfiguration (signal from the network side to change the wireless setting)
  • the related information does not have to be notified at all times.
  • the related information may not be notified, and the same information may be stored (preset) in the UE 200 in advance.
  • the access attribute such as the access category is changed to the access attribute supported by the network, but it may be interpreted as selecting a specific access category defined in advance. It may be interpreted as selecting a specific access category specified by the network.
  • each functional block is realized by any combination of at least one of hardware and software.
  • the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption.
  • broadcasting notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these. I can't.
  • a functional block (constituent unit) for functioning transmission is called a transmitting unit or a transmitter.
  • the method of realizing each of them is not particularly limited.
  • FIG. 8 is a diagram showing an example of the hardware configuration of the UE 200.
  • the UE 200 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 word “device” can be read as a circuit, device, unit, etc.
  • the hardware configuration of the device may be configured to include one or more of each of the devices shown in the figure, or may be configured not to include some of the devices.
  • Each functional block of UE200 (see FIG. 2) is realized by any hardware element of the computer device or a combination of the hardware elements.
  • each function in the UE 200 is such that the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the memory 1002, and controls the communication by the communication device 1004, or the memory 1002. And by controlling at least one of reading and writing of data in the storage 1003.
  • predetermined software program
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, and the like.
  • CPU central processing unit
  • the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
  • the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001.
  • Processor 1001 may be implemented by one or more chips.
  • the program may be transmitted from the network via a telecommunication line.
  • the memory 1002 is a computer-readable recording medium, and is composed of at least one such as ReadOnlyMemory (ROM), ErasableProgrammableROM (EPROM), Electrically ErasableProgrammableROM (EEPROM), and RandomAccessMemory (RAM). May be done.
  • the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can execute the method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • Storage 1003 may be referred to as auxiliary storage.
  • the recording medium described above may be, for example, a database, server or other suitable medium containing at least one of memory 1002 and storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of.
  • 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 accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • Bus 1007 may be configured using a single bus or may be configured using different buses for each device.
  • the device includes hardware such as a microprocessor, a digital signal processor (Digital Signal Processor: DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA).
  • the hardware may implement some or all of each functional block.
  • processor 1001 may be implemented using at least one of these hardware.
  • information notification includes physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), upper layer signaling (eg, RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block)). (MIB), System Information Block (SIB)), other signals or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC signaling may also be referred to as an RRC message, for example, RRC Connection Setup. ) Message, RRC Connection Reconfiguration message, etc. may be used.
  • LTE LongTermEvolution
  • LTE-A LTE-Advanced
  • SUPER3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • FutureRadioAccess FAA
  • NewRadio NR
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB UltraMobile Broadband
  • IEEE802.11 Wi-Fi (registered trademark)
  • IEEE802.16 WiMAX®
  • IEEE802.20 Ultra-WideBand (UWB), Bluetooth®, and other systems that utilize appropriate systems and at least one of the next generation systems extended based on them.
  • a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G).
  • the specific operation performed by the base station in the present disclosure may be performed by its upper node.
  • various operations performed for communication with the terminal are performed by the base station and other network nodes other than the base station (for example, MME or). It is clear that it can be done by at least one of (but not limited to, S-GW, etc.).
  • S-GW network node
  • the case where there is one network node other than the base station is illustrated above, it may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information and signals can be output from the upper layer (or lower layer) to the lower layer (or upper layer).
  • Input / output may be performed via a plurality of network nodes.
  • the input / output information may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information can be overwritten, updated, or added. The output information may be deleted. The input information may be transmitted to another device.
  • the determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the value).
  • the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website, where the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • a channel and a symbol may be a signal (signaling).
  • the signal may be a message.
  • the component carrier (CC) may be referred to as a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented.
  • the radio resource may be one indicated by an index.
  • Base Station BS
  • Wireless Base Station Wireless Base Station
  • NodeB NodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells (also called sectors). When a base station accommodates multiple cells, the entire base station coverage area can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)). Communication services can also be provided by Head: RRH).
  • a base station subsystem eg, a small indoor base station (Remote Radio)
  • Communication services can also be provided by Head: RRH).
  • cell refers to a base station that provides communication services in this coverage, and part or all of the coverage area of at least one of the base station subsystems.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations can be used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and the 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 the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of a base station and a 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, the same applies hereinafter).
  • communication between a base station and a mobile station has been replaced with communication between a plurality of mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the mobile station may have the functions of the base station.
  • words such as "up” and “down” may be read as words corresponding to inter-terminal communication (for example, "side").
  • an uplink channel, a downlink channel, and the like may be read as a side channel.
  • the mobile station in the present disclosure may be read as a base station.
  • the base station may have the functions of the mobile station.
  • the radio frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. Subframes may further consist of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel.
  • Numerology includes, for example, SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame configuration, transmission / reception. It may indicate at least one of a specific filtering process performed by the machine in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like.
  • the slot may be composed of one or more symbols (Orthogonal Frequency Division Multiple Access (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be unit of time based on numerology.
  • OFDM Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain.
  • the mini-slot may also be referred to as a sub-slot.
  • a minislot may consist of a smaller number of symbols than the slot.
  • PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (or PUSCH) mapping type B.
  • the wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • one subframe may be referred to as a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI slot or one minislot
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • a base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may also be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms
  • the short TTI (for example, shortened TTI, etc.) may be read as less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in RB may be the same regardless of numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • One or more RBs include a physical resource block (Physical RB: PRB), a sub-carrier group (Sub-Carrier Group: SCG), a resource element group (Resource Element Group: REG), a PRB pair, an RB pair, and the like. May be called.
  • Physical RB Physical RB: PRB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB pair, and the like. May be called.
  • the resource block may be composed of one or a plurality of resource elements (ResourceElement: RE).
  • RE resource elements
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth, etc.) may represent a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. Good.
  • the common RB may be specified by the index of the RB with respect to 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 for UL
  • DL BWP BWP for DL
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in RB.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • connection means any direct or indirect connection or connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two “connected” or “combined” elements.
  • the connection or connection between the elements may be physical, logical, or a combination thereof.
  • connection may be read as "access”.
  • the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain.
  • Electromagnetic energies with wavelengths in the microwave and light (both visible and invisible) regions, etc. can be considered to be “connected” or “coupled” to each other.
  • the reference signal can also be abbreviated as Reference Signal (RS), and may be called a pilot (Pilot) depending on the applicable standard.
  • RS Reference Signal
  • Pilot pilot
  • each of the above devices may be replaced with a "part”, a “circuit”, a “device”, or the like.
  • references to elements using designations such as “first”, “second” as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.
  • determining and “determining” used in this disclosure may include a wide variety of actions.
  • “Judgment” and “decision” are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). (For example, searching in a table, database or another data structure), ascertaining may be regarded as “judgment” or “decision”.
  • judgment and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access.
  • Accessing (for example, accessing data in memory) may be regarded as "judgment” or “decision”.
  • judgment and “decision” mean that the things such as solving, selecting, choosing, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”. Further, “judgment (decision)” may be read as “assuming”, “expecting”, “considering” and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.
  • Wireless communication system 20 NG-RAN 100 gNB 200 UE 210 Wireless transmitter 220 Wireless receiver 230 Network information acquisition unit 240 Support judgment unit 250 Table holding unit 251 Conversion table 260 Access control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

Abstract

UE (200) receives, from a network (20), relevant information of an access regulation supported by the network, and determines, on the basis of the received relevant information, an access attribute used when accessing the network. The UE (200) executes, as an access by the determined access attribute, an access to the network.　

Description

端末Terminal
　本発明は、ネットワークのアクセス規制に応じてアクセス制御を実行する端末に関する。 The present invention relates to a terminal that executes access control according to network access restrictions.
　3rd Generation Partnership Project（3GPP）は、Long Term Evolution（LTE）を仕様化し、LTEのさらなる高速化を目的としてLTE-Advanced（以下、LTE-Advancedを含めてLTEという）、さらに、5th generation mobile communication system（5G、New Radio（NR）またはNext Generation（NG）とも呼ばれる）の仕様化も進められている。 The 3rd Generation Partnership Project (3GPP) is a specification of Long Term Evolution (LTE), LTE-Advanced (hereinafter referred to as LTE including LTE-Advanced), and 5th generation mobile communication system for the purpose of further speeding up LTE. Specifications (also called 5G, New Radio (NR) or Next Generation (NG)) are also underway.
　このような5Gの仕様では、端末（User Equipment, UE）のネットワークに対するアクセス規制の手段として、Unified Access Control（UAC）が規定されている（非特許文献１及び非特許文献２）。 In such 5G specifications, Unified Access Control (UAC) is defined as a means of restricting access to the network of terminals (User Equipment, UE) (Non-Patent Document 1 and Non-Patent Document 2).
　アクセス規制とは、ネットワークの輻輳また障害時などに、規制対象の通信要求種別または規制対象の端末設定の種別、規制率など報知情報を用いて端末に通知し、端末からネットワークへのアクセスを規制させる方法である。 Access regulation regulates access to the network from the terminal by notifying the terminal using notification information such as the communication request type subject to regulation, the type of terminal setting subject to regulation, and the regulation rate in the event of network congestion or failure. It is a way to make it.
　UACは、LTEのAccess Class Barring（ACB）及びService Specific Access Control（SSAC）など、多岐に渡っていたアクセス規制の方式を一つにまとめたものである。UACでは、アクセスカテゴリ毎に規制が実行できる。 UAC is a collection of a wide variety of access control methods such as LTE Access Class Barring (ACB) and Service Specific Access Control (SSAC). UAC can enforce regulations for each access category.
　また、3GPPのRelease-16では、将来の拡張用に予約済みのアクセスカテゴリ（AC）の１つであるカテゴリ9に対して、IP Multimedia Subsystem（IMS） registration-related signalling（Voice over LTE (VoLTE)用の制御信号）を割り当てることが検討されている（非特許文献３）。 In addition, in 3GPP Release-16, IP Multimedia Subsystem (IMS) registration-related signaling (Voice over LTE (VoLTE)) is used for category 9, which is one of the access categories (AC) reserved for future expansion. (Non-Patent Document 3).
　しかしながら、上述したような将来の拡張用に予約済みのアクセスカテゴリが利用されると、次のような課題が生じると考えられる。 However, if the reserved access category is used for future expansion as described above, the following problems will occur.
　具体的には、Release-16またはそれ以降のReleaseのみをサポートする端末（新世代端末（UE）と適宜称呼する）が、Release-15またはそれ以前のReleaseのみをサポートするネットワーク（旧世代ネットワーク（NW）と適宜称呼する）にアクセスする場合、新世代端末は、当該予約済みのアクセスカテゴリを用いて旧世代ネットワークへのアクセスを実行し得る。 Specifically, a terminal that supports only Release-16 or later Release (referred to as a new generation terminal (UE) as appropriate) is a network that supports only Release-15 or earlier Release (old generation network (old generation network). When accessing (appropriately referred to as NW)), the new generation terminal may perform access to the old generation network using the reserved access category.
　しかしながら、旧世代ネットワークは、当該アクセスカテゴリを認識できないため、新世代端末に対しては適切なアクセス規制が働かず、オペレータの意図に反して新世代端末がアクセス規制を突破してしまう懸念がある。 However, since the old generation network cannot recognize the access category, appropriate access regulation does not work for the new generation terminal, and there is a concern that the new generation terminal may break through the access regulation against the intention of the operator. ..
　そこで、本発明は、このような状況に鑑みてなされたものであり、拡張用のアクセスカテゴリなど、新たなアクセス属性を用いて旧いリリースをサポートするネットワークにアクセスする場合でも、適切に動作し得る端末の提供を目的とする。 Therefore, the present invention has been made in view of such a situation, and can operate appropriately even when accessing a network supporting an old release by using a new access attribute such as an extended access category. The purpose is to provide terminals.
　本開示の一態様は、端末（UE200）であって、ネットワーク（NG-RAN20）から、前記ネットワークがサポートしているアクセス規制の関連情報を受信する受信部（無線受信部220）と、前記関連情報に基づいて、前記ネットワークへのアクセス時に用いるアクセス属性を決定する制御部（アクセス制御部260）とを備え、前記制御部は、決定した前記アクセス属性を有する前記端末として、前記ネットワークへのアクセスを実行する。 One aspect of the present disclosure is a terminal (UE200), which is a receiving unit (wireless receiving unit 220) that receives information related to access control supported by the network from a network (NG-RAN20), and the related unit. A control unit (access control unit 260) that determines an access attribute to be used when accessing the network is provided based on the information, and the control unit accesses the network as the terminal having the determined access attribute. To execute.
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 the wireless communication system 10. 図２は、UE200の機能ブロック構成図である。FIG. 2 is a functional block configuration diagram of the UE 200. 図３は、ネットワークへのアクセス制御に関するUE200のプロトコルスタックの構成例を示す図である。FIG. 3 is a diagram showing a configuration example of the protocol stack of UE200 regarding access control to the network. 図４は、新旧リリースが混在する場合におけるアクセス規制に関する課題の説明図である。FIG. 4 is an explanatory diagram of issues related to access regulation when old and new releases are mixed. 図５は、無線通信システム10におけるアクセス規制に関する動作例を示す図である。FIG. 5 is a diagram showing an operation example related to access regulation in the wireless communication system 10. 図６は、ネットワークによるアクセス規制に応じたUE200のアクセス制御動作フローを示す図である。FIG. 6 is a diagram showing an access control operation flow of the UE 200 according to the access regulation by the network. 図７は、アクセスカテゴリの変換テーブル及びネットワークからの報知情報の構成例を示す図である。FIG. 7 is a diagram showing a configuration example of an access category conversion table and broadcast information from the network. 図８は、UE200のハードウェア構成の一例を示す図である。FIG. 8 is a diagram showing an example of the hardware configuration of the UE 200.
　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 functions and configurations are designated by the same or similar reference numerals, 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 Wireless Communication System FIG. 1 is an overall schematic configuration diagram of the wireless communication system 10 according to the present embodiment. The wireless communication system 10 is a wireless communication system according to 5G New Radio (NR), and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN20, and a terminal 200 (hereinafter, UE200)).
　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-RAN20 includes a radio base station 100 (hereinafter, gNB100). The specific configuration of the wireless 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（5GC、不図示）と接続される。なお、NG-RAN20及び5GCは、単にネットワークと表現されてもよい。 The NG-RAN20 actually includes multiple NG-RANNodes, specifically gNB (or ng-eNB), and is connected to a core network (5GC, not shown) according to 5G. In addition, NG-RAN20 and 5GC may be simply expressed as a network.
　gNB100は、5Gに従った無線基地局であり、UE200と5Gに従った無線通信を実行する。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 is a wireless base station that complies with 5G, and executes wireless communication according to UE200 and 5G. The gNB100 and UE200 include Massive MIMO, which generates a beam with higher directivity by controlling radio signals transmitted from multiple antenna elements, and carrier aggregation (CA), which uses multiple component carriers (CC) in a bundle. It can also support dual connectivity (DC), which communicates simultaneously between the UE and multiple NG-RAN Nodes.
　本実施形態では、UE200は、3GPPのRelease-16（新リリース、）をサポートする（Release-16に対応すると言い換えてもよい）。一方、gNB100を含むNG-RAN20、及び5GC（コアネットワーク）は、Release-15（旧リリース）をサポートする（Release-15に対応すると言い換えてもよい）。本実施形態では、UE200を新世代端末と適宜称呼し、NG-RAN20及び5GCを含むネットワークを旧世代ネットワークと適宜称呼する。 In this embodiment, UE200 supports Release-16 (new release) of 3GPP (in other words, it corresponds to Release-16). On the other hand, NG-RAN20 including gNB100 and 5GC (core network) support Release-15 (old release) (in other words, it corresponds to Release-15). In the present embodiment, the UE 200 is appropriately referred to as a new generation terminal, and the network including the NG-RAN 20 and 5GC is appropriately referred to as an old generation network.
　また、無線通信システム10では、UE200のネットワークに対するアクセス規制の手段として、Unified Access Control（UAC）が適用されている。UACは、LTEにおける複数の規制制御を統一したものである。UACでは、端末における各種通信要求は１つのAccess Category（AC）と、１つ以上のAccess Identityにマッピングされる。無線基地局は、当該組合せ毎にアクセス規制が可能となる。 In addition, in the wireless communication system 10, Unified Access Control (UAC) is applied as a means of restricting access to the UE200 network. UAC unifies multiple regulatory controls in LTE. In UAC, various communication requests in the terminal are mapped to one Access Category (AC) and one or more Access Identity. The radio base station can regulate access for each combination.
　表１及び表２は、3GPP（NR）のRelease-15において規定されるAccess Category及びAccess Identityをそれぞれ示す。 Tables 1 and 2 show the Access Category and Access Identity specified in Release-15 of 3GPP (NR), respectively.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
　Access Categoryは、通信要求種別の識別子である。端末における各種通信要求ごとに異なる番号を付与しており、オペレータ独自定義が可能な領域も規定されている。 Access Category is an identifier for the communication request type. A different number is assigned to each communication request in the terminal, and an area that can be defined independently by the operator is also defined.
　Access Identityは、端末設定の識別子である。MPS（Multimedia Priority Service）呼、MCS（Mission Critical Service）呼、優先呼（Access Class11～15）用の端末として設定された端末には、それぞれ異なる番号を付与し,それ以外を一律「0」としている。 Access Identity is an identifier for terminal settings. Different numbers are assigned to terminals set as terminals for MPS (Multimedia Priority Service) calls, MCS (Mission Critical Service) calls, and priority calls (Access Class 11 to 15), and the others are uniformly set to "0". There is.
　なお、MPSとは、ネットワークが輻輳状態時であっても端末に特定通信を提供可能とするサービスである。また、MCSとは、システム障害やサービス中断により生命や社会に対して重大な悪影響が起こり得るサービスである。 MPS is a service that enables specific communication to be provided to terminals even when the network is congested. In addition, MCS is a service that can have a serious adverse effect on life and society due to system failure or service interruption.
　表１に示すように、Release-15では、Access Category 9～31として、将来新規にカテゴリが規定された場合に備え、予約済みとなっている。同様に、Access Identity 3～10も予約済みとなっている。 As shown in Table 1, in Release-15, it is reserved as Access Category 9 to 31 in case a new category is specified in the future. Similarly, Access Identity 3 to 10 are also reserved.
　本実施形態では、Release-16では、予約されているカテゴリ9に対して、IP Multimedia Subsystem（IMS）registration-related signalling（Voice over LTE (VoLTE)用の制御信号）を割り当てる。 In the present embodiment, in Release-16, IP Multimedia Subsystem (IMS) registration-related signaling (control signal for Voice over LTE (VoLTE)) is assigned to the reserved category 9.
　これにより、IMSレイヤ（VoLTEの制御を担うレイヤ）から新しいIndicationが、Non-Access Stratum（NAS）レイヤ（Access Categoryを決定する）に対し通知され、NASレイヤにおいて新規のカテゴリ9にマッピングされる。なお、UACに関する動作の詳細については、後述する。 As a result, the new Indication is notified from the IMS layer (the layer responsible for controlling VoLTE) to the Non-Access Stratum (NAS) layer (which determines the Access Category), and is mapped to the new category 9 in the NAS layer. The details of the operation related to UAC will be described later.
　（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、UE200の機能ブロック構成、及びネットワークへのアクセス制御に関するUE200のプロトコルスタックの構成例について説明する。 (2) Functional block configuration of the wireless communication system Next, the functional block configuration of the wireless communication system 10 will be described. Specifically, a configuration example of the UE200 functional block configuration and the UE200 protocol stack configuration related to network access control will be described.
　（２．１）機能ブロック構成
　図２は、UE200の機能ブロック構成図である。図２に示すように、UE200は、無線送信部210、無線受信部220、ネットワーク情報取得部230、サポート判定部240、テーブル保持部250及びアクセス制御部260を備える。 (2.1) Functional block configuration FIG. 2 is a functional block configuration diagram of the UE 200. As shown in FIG. 2, the UE 200 includes a wireless transmission unit 210, a wireless reception unit 220, a network information acquisition unit 230, a support determination unit 240, a table holding unit 250, and an access control unit 260.
　無線送信部210は、NRに従った上りリンク信号（UL信号）を送信する。また、無線受信部220は、NRに従った下りリンク信号（DL信号）を受信する。 The wireless transmitter 210 transmits an uplink signal (UL signal) according to NR. Further, the wireless receiving unit 220 receives the downlink signal (DL signal) according to the NR.
　特に、本実施形態では、無線受信部220は、ネットワークからアクセス規制の関連情報を受信できる。本実施形態において、無線受信部220は、受信部を構成する。 In particular, in the present embodiment, the wireless receiver 220 can receive information related to access regulation from the network. In the present embodiment, the wireless receiving unit 220 constitutes a receiving unit.
　具体的には、無線受信部220は、gNB100を介して、NG-RAN20を含むネットワークがサポートしているアクセス規制の関連情報を受信する。 Specifically, the wireless receiver 220 receives the information related to the access regulation supported by the network including the NG-RAN20 via the gNB100.
　アクセス規制の関連情報とは、典型的には、ネットワークがサポートしているアクセスカテゴリ（通信要求種別と言い換えてもよい）であるが、ネットワークがサポートしているリリース（バージョンと言い換えてよい）であってもよい。上述したように、ネットワークがサポートしているリリースから、サポートしているアクセスカテゴリを判定し得るためである。 Access regulation-related information is typically the access category supported by the network (which can be rephrased as the communication request type), but the release supported by the network (which can be rephrased as the version). There may be. This is because, as described above, the supported access categories can be determined from the releases supported by the network.
　また、アクセスカテゴリの表示は、番号の一覧でもよいし、サポートしているアクセスカテゴリの最大値でもよい。 Also, the access category display may be a list of numbers or the maximum value of the supported access categories.
　さらに、アクセス規制の関連情報には、ネットワークがサポートしている端末設定種別が含まれてもよい。 Furthermore, the information related to access regulation may include the terminal setting types supported by the network.
　ネットワーク情報取得部230は、無線受信部220を介してネットワークに関連する情報を取得する。具体的には、ネットワーク情報取得部230は、上述したアクセス規制の関連情報を取得できる。 The network information acquisition unit 230 acquires information related to the network via the wireless reception unit 220. Specifically, the network information acquisition unit 230 can acquire information related to the above-mentioned access regulation.
　例えば、ネットワーク情報取得部230は、UE200のネットワークへの位置登録手順（Registration Accept）の中で当該関連情報を取得してもよいし、一般的な報知情報（システム情報と呼ばれてもよい）に含まれる当該関連情報を取得してもよい。 For example, the network information acquisition unit 230 may acquire the related information in the location registration procedure (Registration Accept) of the UE 200, or general broadcast information (may be called system information). The relevant information contained in may be acquired.
　サポート判定部240は、ネットワークによって提供される各種サービスや機能のサポート状況を判定する。特に、本実施形態では、サポート判定部240は、ネットワークがサポートしているアクセスカテゴリを判定することができる。 The support determination unit 240 determines the support status of various services and functions provided by the network. In particular, in the present embodiment, the support determination unit 240 can determine the access category supported by the network.
　具体的には、サポート判定部240は、ネットワーク情報取得部230によって取得されたアクセス規制の関連情報に基づいて、ネットワークがサポートしているアクセスカテゴリを判定する。 Specifically, the support determination unit 240 determines the access category supported by the network based on the access regulation related information acquired by the network information acquisition unit 230.
　テーブル保持部250は、ネットワークのアクセス規制に応じたアクセス制御に用いられるテーブルを保持する。具体的には、テーブル保持部250は、UE200のアクセスカテゴリをネットワークがサポートしているアクセスカテゴリに変更（変換と呼んでもよい）する際に用いられるテーブル（変換テーブル）を保持する。なお、テーブルの具体例については、後述する。 The table holding unit 250 holds a table used for access control according to network access restrictions. Specifically, the table holding unit 250 holds a table (conversion table) used when changing the access category of the UE 200 to an access category supported by the network (which may be called conversion). A specific example of the table will be described later.
　アクセス制御部260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、アクセス制御部260は、ネットワーク情報取得部230によって取得されたアクセス規制の関連情報に基づいて、UE200のネットワークへのアクセス時に用いるアクセス属性を決定することができる。本実施形態において、アクセス制御部260は、制御部を構成する。 The access control unit 260 controls each functional block that constitutes the UE 200. In particular, in the present embodiment, the access control unit 260 can determine the access attribute to be used when accessing the network of the UE 200 based on the information related to the access regulation acquired by the network information acquisition unit 230. In the present embodiment, the access control unit 260 constitutes a control unit.
　ここで、アクセス属性とは、上述したようなUE200がネットワークへのアクセス時に用いるアクセスカテゴリでもよいし、端末設定種別（Access Identity）でもよい。或いは、UE200がネットワークへのアクセス時に用いるリリースと解釈されてもよいし、ASレイヤで用いられるアクセス種別（RRC establishment cause）と解釈されてもよい。 Here, the access attribute may be the access category used by the UE 200 when accessing the network as described above, or may be the terminal setting type (Access Identity). Alternatively, it may be interpreted as the release used by the UE 200 when accessing the network, or as the access type (RRC establishment cause) used in the AS layer.
　アクセス制御部260は、決定したアクセス属性によるアクセスとして、ネットワークへのアクセスを実行できる。 The access control unit 260 can execute access to the network as an access according to the determined access attribute.
　例えば、アクセス制御部260は、ネットワークが旧世代ネットワークであり、カテゴリ9をサポートしていないと判定した場合、ネットワークがサポートしている何れかのカテゴリ（例えば、カテゴリ4（音声通話））にアクセス属性を変更した上で、ネットワークへのアクセスを実行する。 For example, when the access control unit 260 determines that the network is an old generation network and does not support category 9, it accesses one of the categories supported by the network (for example, category 4 (voice call)). After changing the attributes, access the network.
　つまり、アクセス制御部260は、ネットワーク情報取得部230によって取得されたアクセス規制の関連情報に基づいて、UE200のアクセスカテゴリをネットワークがサポートしているアクセスカテゴリに変更することができる。 That is, the access control unit 260 can change the access category of the UE 200 to the access category supported by the network based on the information related to the access regulation acquired by the network information acquisition unit 230.
　また、アクセス制御部260は、端末のアクセスカテゴリと、ネットワークがサポートしているアクセスカテゴリとの関連付けを示すテーブル（テーブル保持部250によって保持されている）に基づいて、アクセスカテゴリを変更することもできる。但し、アクセスカテゴリの変更には、必ずしも当該テーブルは必須ではない。アクセス制御部260は、アクセスカテゴリの固定的なマッピング（例えば、カテゴリ9からカテゴリ4へのマッピング）を用いて、アクセスカテゴリを変更してもよい。 The access control unit 260 can also change the access category based on a table (held by the table holding unit 250) showing the association between the access category of the terminal and the access category supported by the network. it can. However, the table is not always required to change the access category. The access control unit 260 may change the access category by using a fixed mapping of the access category (for example, a mapping from category 9 to category 4).
　また、アクセス制御部260は、端末設定種別（Access Identity）についても、アクセス規制の関連情報に基づいて、UE200が利用する端末設定種別をネットワークがサポートしている端末設定種別に変更するようにしてもよい。 In addition, the access control unit 260 also changes the terminal setting type (Access Identity) used by the UE 200 to the terminal setting type supported by the network based on the information related to the access regulation. May be good.
　さらに、この場合、テーブル保持部250が、端末が利用する端末設定種別と、ネットワークがサポートしている端末設定種別との関連付けを示すテーブルを保持し、アクセス制御部260は、当該テーブルに基づいて端末設定種別を変更するようにしてもよい。 Further, in this case, the table holding unit 250 holds a table showing the association between the terminal setting type used by the terminal and the terminal setting type supported by the network, and the access control unit 260 based on the table. The terminal setting type may be changed.
　（２．２）アクセス制御に関するUE200のプロトコルスタックの構成
　図３は、ネットワークへのアクセス制御に関するUE200のプロトコルスタックの構成例を示す。 (2.2) Configuration of UE200 Protocol Stack for Access Control FIG. 3 shows a configuration example of the UE200 protocol stack for access control to the network.
　図３に示す例は、VoLTEの例であり、UE200は、ネットワークへのアクセス制御に関して、Access Stratum（AS）、NAS及びIP Multimedia Subsystem（IMS）の各レイヤを用いてVoLTEの制御を実行する。 The example shown in FIG. 3 is an example of VoLTE, and the UE200 executes VoLTE control using each layer of Access Stratum (AS), NAS and IP Multimedia Subsystem (IMS) regarding access control to the network.
　具体的には、IMSレイヤは、VoLTE制御信号の発信を検知し、registration-related signalling（Voice over LTE (VoLTE)用の制御信号）を開始する。また、本実施形態は、上述したように、当該通信要求は、カテゴリ9（新世代アクセスカテゴリと呼ばれてもよい）にマッピングされており、NASレイヤは、当該通信要求をカテゴリ9にマッピングする。 Specifically, the IMS layer detects the transmission of the VoLTE control signal and starts registration-related signaling (control signal for Voice over LTE (VoLTE)). Further, in the present embodiment, as described above, the communication request is mapped to category 9 (which may be referred to as a new generation access category), and the NAS layer maps the communication request to category 9. ..
　ASレイヤは、NASレイヤから通知されたカテゴリ（9）及び呼種別に基づいて、アクセス規制が適用されるか否かを判定する。また、ASレイヤは、NASにアクセス規制の結果を通知する。 The AS layer determines whether or not access restrictions are applied based on the category (9) and call type notified from the NAS layer. In addition, the AS layer notifies the NAS of the result of access restrictions.
　なお、UE200は、図３に示したレイヤ以外に、複数のレイヤ（物理レイヤ、媒体アクセス制御レイヤ（MAC）、無線リンク制御レイヤ（RLC）、及びパケット・データ・コンバージェンス・プロトコル・レイヤ（PDCP）など）などを有する。 In addition to the layers shown in FIG. 3, the UE200 includes a plurality of layers (physical layer, medium access control layer (MAC), wireless link control layer (RLC), and packet data convergence protocol layer (PDCP)). Etc.) and so on.
　（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、新世代端末（UE200）と旧世代ネットワーク（NG-RAN20及び5GC）とにおけるアクセス規制に関する動作について説明する。 (3) Operation of the wireless communication system Next, the operation of the wireless communication system 10 will be described. Specifically, the operation related to access regulation between the new generation terminal (UE200) and the old generation network (NG-RAN20 and 5GC) will be described.
　（３．１）アクセス規制に関する課題
　図４は、新旧リリースが混在する場合におけるアクセス規制に関する課題の説明図である。図4に示すように、また、上述したように、旧世代ネットワークが、新世代端末に対して旧世代のアクセスカテゴリのみを規制している場合、新世代端末は、ネットワークから報知されていない新世代のアクセスカテゴリを用いてアクセスを試みる。 (3.1) Issues related to access regulation FIG. 4 is an explanatory diagram of issues related to access regulation when old and new releases are mixed. As shown in FIG. 4, and as described above, when the old generation network regulates only the old generation access category for the new generation terminal, the new generation terminal is not notified from the network. Attempt access using the generation access category.
　このような新世代のアクセスカテゴリは、旧世代ネットワークから規制できないため、新世代端末は、旧世代ネットワークに対するアクセス（発信処理）が可能となる。そうすると、本来はオペレータによるアクセス規制の対象である新世代端末のアクセスが、オペレータの意図と異なり、ネットワークによるアクセス規制を突破してしまう。 Since such a new generation access category cannot be regulated from the old generation network, the new generation terminal can access the old generation network (outgoing processing). Then, the access of the new generation terminal, which is originally subject to the access regulation by the operator, breaks through the access regulation by the network unlike the intention of the operator.
　なお、ここで、UACに従ったアクセス制御について、さらに説明する。gNB100は、Access Category毎に規制対象のAccess Identityと規制対象パラメータをMSI（Minimum System Information）によってUE200に通知する。 Here, access control according to UAC will be further described. The gNB100 notifies the UE200 of the regulated Access Identity and the regulated parameters for each Access Category by MSI (Minimum System Information).
　UE200は、通信要求が発生するたびに、Access CategoryとAccess Identityとに基づいて規制要否を判断し、規制が必要な場合は設定されたパラメータ値に従った規制動作を行う。 The UE200 determines the necessity of regulation based on Access Category and Access Identity each time a communication request is generated, and if regulation is required, performs regulation operation according to the set parameter value.
　なお、LTEではアクセス規制制御の対象は主にRRC_IDLE状態の端末のみであったが、NRでは全てのRRC状態の端末について規制可能であり、よりきめ細やかなアクセス規制を実現している。 In LTE, the target of access regulation control was mainly only terminals in RRC_IDLE state, but in NR, all terminals in RRC state can be regulated, and more detailed access regulation is realized.
　また、このようなアクセス制御の判断方法は、3GPP TS38.331 section 5.3.14.5に記載されている。UE200は、内部で乱数(rand)を生成し、randがuac-BarringFactor（報知情報に含まれる）より小さければ規制せず、大きければ規制する。UE200は、Tbarringというパラメータを次の計算式から算出する。 In addition, the method of determining such access control is described in 3GPP TS38.331 section 5.3.14.5. UE200 internally generates a random number (rand), and if rand is smaller than uac-BarringFactor (included in the broadcast information), it does not regulate, and if it is larger, it regulates. UE200 calculates a parameter called Tbarring from the following formula.
　　"Tbarring" = (0.7+ 0.6 * rand) * uac-BarringTime
　なお、UE200は、Tbarring起動中にRRC Connectionの確立要求があった場合、規制する。 "Tbarring" = (0.7 + 0.6 * rand) * uac-BarringTime
In addition, UE200 regulates when there is a request to establish RRC Connection while Tbarring is running.
　（３．２）動作例
　次に、上述したアクセス規制に関する課題を解決する動作例について説明する。以下に説明する動作例は、次のような提案内容に基づいている。 (3.2) Operation example Next, an operation example for solving the above-mentioned problems related to access regulation will be described. The operation example described below is based on the following proposal contents.
　　・（提案１）
　　　　・NASのシグナリングに、ネットワークがサポートしているアクセスカテゴリの情報を含める。 ・ (Proposal 1)
-Include information on access categories supported by the network in the NAS signaling.
　　　　・端末が、ネットワークがサポートしているアクセスカテゴリに基づいて、同一のアクセスであっても、異なるアクセスカテゴリを利用する。 ・ The terminal uses different access categories even if they have the same access, based on the access categories supported by the network.
　　・（提案２）
　　　　・端末設定としてマッピングテーブルを保持する。 ・ (Proposal 2)
-Keep the mapping table as a terminal setting.
　　　　・報知情報に含まれるバージョン情報に基づいて、アクセスカテゴリへのマッピングを実行する。 Execute mapping to access categories based on the version information included in the notification information.
　図５は、無線通信システム10におけるアクセス規制に関する動作例を示す。また、図６は、ネットワークによるアクセス規制に応じたUE200のアクセス制御動作フローを示す。 FIG. 5 shows an operation example related to access regulation in the wireless communication system 10. Further, FIG. 6 shows an access control operation flow of the UE 200 according to the access regulation by the network.
　図５では、UE200が、NG-RAN20及び5GCを含むネットワークへの位置登録において、ネットワークがサポートしているアクセスカテゴリの情報を取得する例が示されている。 FIG. 5 shows an example in which UE200 acquires information on access categories supported by the network in location registration to the network including NG-RAN20 and 5GC.
　具体的には、UE200は、ネットワークに対して、Registration Requestを送信する。Registration Requestは、具体的には、コアネットワーク内のAccess and Mobility Management Function（AMF）に送信される。 Specifically, UE200 sends a Registration Request to the network. Specifically, the Registration Request is sent to the Access and Mobility Management Function (AMF) in the core network.
　ネットワークは、Registration Requestに基づいてUE200の登録を受理したことを通知するRegistration Acceptに、ネットワークがサポートしているアクセスカテゴリの情報を含める。 The network includes information on the access categories supported by the network in the Registration Accept that notifies that the registration of UE200 has been accepted based on the Registration Request.
　新世代端末（UE200）は、ネットワーク（旧世代ネットワーク）がサポートしていないアクセスカテゴリについては、旧世代のアクセスカテゴリへマッピング（変更）する。 The new generation terminal (UE200) maps (changes) access categories that the network (old generation network) does not support to the old generation access categories.
　一方、ネットワークが新世代のアクセスカテゴリに対応している場合、つまり、Release-16をサポートしている場合、新世代端末（UE200）は、アクセスカテゴリを変更せずにそのまま利用する。 On the other hand, if the network supports the new generation access category, that is, if it supports Release-16, the new generation terminal (UE200) will be used as it is without changing the access category.
　図６に示すように、UE200は、ネットワークがサポートしているアクセスカテゴリの情報を取得する（S10）。上述したように、アクセスカテゴリの情報は、番号の一覧でもよいし、サポートしているアクセスカテゴリの最大値でもよい。 As shown in FIG. 6, the UE200 acquires the information of the access category supported by the network (S10). As described above, the access category information may be a list of numbers or the maximum value of the supported access categories.
　UE200は、取得したアクセスカテゴリの情報に基づいて、ネットワークが新世代のアクセスカテゴリに対応しているか否かを判定する（S20）。 UE200 determines whether or not the network supports the new generation access category based on the acquired access category information (S20).
　ネットワークが新世代のアクセスカテゴリに対応している場合、UE200は、新世代のアクセスカテゴリを利用する場合には、そのまま当該新世代のアクセスカテゴリ（例えば、カテゴリ9）へマッピングする（S30）。 When the network supports the new generation access category, the UE200 maps to the new generation access category (for example, category 9) as it is when using the new generation access category (S30).
　一方、ネットワークが新世代のアクセスカテゴリに対応していない場合、UE200は、新世代のアクセスカテゴリを利用する場合であっても、旧世代のアクセスカテゴリ（例えば、カテゴリ4）へマッピングする（S40）。つまり、UE200は、新世代のアクセスカテゴリから旧世代のアクセスカテゴリに変換する。 On the other hand, if the network does not support the new generation access category, the UE200 maps to the old generation access category (eg, category 4) even when using the new generation access category (S40). .. That is, the UE200 converts from the new generation access category to the old generation access category.
　UE200は、マッピングされたアクセスカテゴリに基づいて、アクセス制御を実行する（S50）。 UE200 executes access control based on the mapped access category (S50).
　図７は、アクセスカテゴリの変換テーブル及びネットワークからの報知情報の構成例を示す。図７に示す変換テーブルは、図６に示したステップS40において用いることができる。 FIG. 7 shows a configuration example of the access category conversion table and the notification information from the network. The conversion table shown in FIG. 7 can be used in step S40 shown in FIG.
　図７に示すように、変換テーブル251は、新世代（バージョンMと記載）のAccess Category（AC）と、旧世代（バージョンNと記載）のAccess Categoryとの関連付けを示す。 As shown in FIG. 7, the conversion table 251 shows the association between the new generation (described as version M) Access Category (AC) and the old generation (described as version N) Access Category.
　図７に示すように、AC3～7は、バージョンM, N間において変更ないが、AC9は、AC4に変換される。 As shown in FIG. 7, AC3 to 7 do not change between versions M and N, but AC9 is converted to AC4.
　図７の右側に示すネットワークからの報知情報（なお、上述したRegistration Acceptであってもよい）は、バージョンN（例えば、Release-15）に従っている。このため、新世代のAccess Categoryについては規定されていない。 The broadcast information from the network shown on the right side of FIG. 7 (which may be the Registration Accept described above) follows version N (for example, Release-15). For this reason, the new generation of Access Category is not specified.
　図７に示すように、当該報知情報には、各ACと、規制パラメータのインデックスとの関連付ける情報が含まれてよい。規制パラメータには、規制率及び規制時間（UE200に対してアクセス規制が適用される時間）などが含まれてよい。 As shown in FIG. 7, the notification information may include information associating each AC with the index of the regulation parameter. Regulatory parameters may include regulation rate and regulation time (time when access regulation is applied to UE200).
　なお、図７では、バージョンM（例えば、Release-16）からバージョンNへの変換テーブルのみが示されているが、標準として規定されるアクセスカテゴリが増える度に、当該テーブルのバージョンを上げるようにしてもよい。例えば、Release-15は、バージョン0とし、Release-16は、上述したように、カテゴリ9が加わるため、バージョン1などとしてよい。また、報知情報は、バージョン1（M）以降については、バージョン番号も含んでよい。 In FIG. 7, only the conversion table from version M (for example, Release-16) to version N is shown, but the version of the table should be increased each time the access category defined as the standard increases. You may. For example, Release-15 may be version 0, and Release-16 may be version 1 or the like because category 9 is added as described above. In addition, the notification information may include the version number for version 1 (M) or later.
　端末は、自身のNASレイヤが準拠するバージョン（例えば、M）と、それ以前のバージョンとの間に適用される変換テーブルをASレイヤに予め設定し、保持する。例えば、端末は、M=3であり、N=1であれば、バージョン3から2、3から1、及び3から0への変換テーブルを保持してよい。なお、端末は、必ずしもこれら全ての変換テーブルを保持していなくても構わない。 The terminal presets and holds the conversion table applied between the version (for example, M) to which its NAS layer conforms and the version earlier than that in the AS layer. For example, if M = 3 and N = 1, the terminal may hold a conversion table from version 3 to 2, 3 to 1, and 3 to 0. The terminal does not necessarily have to hold all these conversion tables.
　また、NASレイヤは、自身の準拠するバージョンに基づいてアクセスカテゴリの番号を判定し、ASレイヤに規制の有無を問い合わせる。ASレイヤは、報知情報のバージョン番号から対応する変換テーブルを選択し、アクセスカテゴリの番号を変換する。アクセス制御を含む以後の動作は、この変換後のアクセスカテゴリの番号に従って実行される。 In addition, the NAS layer determines the access category number based on the version to which it complies, and inquires the AS layer about the existence of restrictions. The AS layer selects the corresponding conversion table from the version number of the broadcast information and converts the access category number. Subsequent operations, including access control, are performed according to this converted access category number.
　（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。具体的には、UE200は、ネットワークがサポートしているアクセス規制の関連情報を受信し、受信した関連情報に基づいてネットワークへのアクセス時に用いるアクセスカテゴリなどのアクセス属性を決定する。また、UE200は、決定したアクセス属性によるアクセスとして、ネットワークへのアクセスを実行する。 (4) Action / Effect According to the above-described embodiment, the following action / effect can be obtained. Specifically, the UE 200 receives the related information of the access regulation supported by the network, and determines the access attribute such as the access category to be used when accessing the network based on the received related information. In addition, UE200 executes access to the network as access according to the determined access attribute.
　このため、新世代端末であるUE200が、拡張用のアクセスカテゴリなど、新たなアクセス属性を用いて旧世代ネットワークにアクセスする場合でも、UE200に対してアクセス規制が適用されることになり、UE200は、オペレータの意図に従って適切に動作し得る。 Therefore, even if the UE200, which is a new-generation terminal, accesses the old-generation network using new access attributes such as the access category for expansion, access restrictions will be applied to the UE200, and the UE200 will have access restrictions. , Can operate properly according to the operator's intention.
　本実施形態では、UE200は、ネットワークがサポートしているアクセス規制の関連情報に基づいて、UE200のアクセスカテゴリを旧世代ネットワークがサポートしているアクセスカテゴリに変更できる。このため、UE200が、旧世代ネットワークがサポートしていないアクセスカテゴリで旧世代ネットワークにアクセスする場合でも、確実にUE200に対するアクセス規制を適用し得る。 In this embodiment, the UE 200 can change the access category of the UE 200 to the access category supported by the previous generation network based on the related information of the access regulation supported by the network. Therefore, even if the UE 200 accesses the old generation network in an access category that the old generation network does not support, the access restriction for the UE 200 can be surely applied.
　本実施形態では、UE200は、端末のアクセスカテゴリと、ネットワークがサポートしているアクセスカテゴリとの関連付けを示すテーブル（変換テーブル251）を用いることができる。このため、容易かつ柔軟にアクセスカテゴリの変更を実現し得る。 In the present embodiment, the UE 200 can use a table (conversion table 251) showing the association between the access category of the terminal and the access category supported by the network. Therefore, the access category can be changed easily and flexibly.
　また、上述したように、UE200は、アクセスカテゴリに限らず、端末設定種別（Access Identity）についても、アクセス規制の関連情報に基づいて、UE200が利用する呼種別をネットワークがサポートしている端末設定種別に変更するようにしてもよい。さらに、この場合、端末が利用する端末設定種別と、ネットワークがサポートしている端末設定種別との関連付けを示すテーブルを用いることもできる。 Further, as described above, the UE200 is not limited to the access category, but also for the terminal setting type (AccessIdentity), the terminal setting that the network supports the call type used by the UE200 based on the information related to the access regulation. You may change it to the type. Further, in this case, a table showing the association between the terminal setting type used by the terminal and the terminal setting type supported by the network can also be used.
　このため、アクセスカテゴリに限らず、端末設定種別（Access Identity）について端末が新たな端末設定種別を用いて旧世代ネットワークにアクセスする場合でも、UE200に対してアクセス規制が適用されることになり、UE200は、オペレータの意図に従って適切に動作し得る。なお、端末設定種別は、アクセス識別情報や移動機種別など、別の名称で呼ばれても構わない。 For this reason, access restrictions will be applied to the UE 200 even when the terminal accesses the old generation network using the new terminal setting type for the terminal setting type (Access Identity), not limited to the access category. UE200 can operate properly according to the operator's intention. The terminal setting type may be called by another name such as access identification information or mobile device type.
　（５）その他の実施形態
　以上、実施例に沿って本発明の内容を説明したが、本発明はこれら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 contents of the present invention have been described above with reference to the examples, the present invention is not limited to these descriptions, and various modifications and improvements are possible. It is self-evident to the trader.
　例えば、上述した実施形態では、ネットワークがサポートしているアクセス規制の関連情報を通知する方法として、Registration Acceptまたは報知情報を用いる例について説明したが、以下のメッセージ内に当該関連情報を含めるようにしてもよい。 For example, in the above-described embodiment, an example of using Registration Accept or notification information as a method of notifying the related information of the access regulation supported by the network has been described, but the related information should be included in the following message. You may.
　　・CONFIGURATION UPDATE COMMAND（端末の設定を更新するメッセージ）
　　・DL NAS TRANSPORT（端末に対して、データのコンテナを送信するメッセージ）
　　・RRC Connection setup（無線のリソースを確立するためのネットワーク側からの信号）
　　・RRC Connection reconfiguration（無線の設定を変更するためのネットワーク側からの信号）
　また、当該関連情報は、常時通知されなくても構わない。或いは、関連情報は通知されずに、同様の情報が、UE200内部に予め保持（プリセット）されていてもよい。 -CONFIGURATION UPDATE COMMAND (message to update terminal settings)
-DL NAS TRANSPORT (message that sends a container of data to the terminal)
-RRC Connection setup (signal from the network side to establish wireless resources)
-RRC Connection reconfiguration (signal from the network side to change the wireless setting)
In addition, the related information does not have to be notified at all times. Alternatively, the related information may not be notified, and the same information may be stored (preset) in the UE 200 in advance.
　また、上述した実施形態では、アクセスカテゴリなどのアクセス属性をネットワークがサポートしているアクセス属性に変更すると説明したが、予め規定された特定のアクセスカテゴリを選択するなどと解釈されてもよいし、ネットワークが指定した特定のアクセスカテゴリを選択するなどと解釈されてもよい。 Further, in the above-described embodiment, it has been explained that the access attribute such as the access category is changed to the access attribute supported by the network, but it may be interpreted as selecting a specific access category defined in advance. It may be interpreted as selecting a specific access category specified by the network.
　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）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。 Further, the block configuration diagram (FIG. 2) used in the description of the above-described embodiment shows a block for each functional unit. These functional blocks (components) are realized by any combination of at least one of hardware and software. Further, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , Wired, wireless, etc.) and may be realized using these plurality of devices. The functional block may be realized by combining the software with 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 judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and assumption. There are broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but only these. I can't. For example, a functional block (constituent unit) for functioning transmission is called a transmitting unit or a transmitter. As described above, the method of realizing each of them is not particularly limited.
　さらに、上述したUE200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８は、UE200のハードウェア構成の一例を示す図である。図８に示すように、UE200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。 Further, the UE 200 described above may function as a computer that processes the wireless communication method of the present disclosure. FIG. 8 is a diagram showing an example of the hardware configuration of the UE 200. As shown in FIG. 8, the UE 200 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 word "device" can be read as a circuit, device, unit, etc. The hardware configuration of the device may be configured to include one or more of each of the devices shown in the figure, or may be configured not to include some of the devices.
　UE200の各機能ブロック（図２参照）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 UE200 (see FIG. 2) is realized by any hardware element of the computer device or a combination of the hardware elements.
　また、UE200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 in the UE 200 is such that the processor 1001 performs an operation by loading predetermined software (program) on the hardware such as the processor 1001 and the memory 1002, and controls the communication by the communication device 1004, or the memory 1002. And by controlling at least one of reading and writing of data in the 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。 Processor 1001 operates, for example, an operating system to control the entire computer. The processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, 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。 Further, the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used. Further, the various processes described above may be executed by one processor 1001 or may be executed simultaneously or sequentially by two or more processors 1001. Processor 1001 may be implemented by one or more chips. The program may be transmitted from the network via a telecommunication 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 such as ReadOnlyMemory (ROM), ErasableProgrammableROM (EPROM), Electrically ErasableProgrammableROM (EEPROM), and RandomAccessMemory (RAM). May be done. The memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, or the like that can execute the method according to the 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 disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, or a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. Storage 1003 may be referred to as auxiliary storage. The recording medium described above may be, for example, a database, server or other suitable medium containing 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 (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, 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, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed 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 accepts input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may have an integrated configuration (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。 In addition, each device such as the processor 1001 and the memory 1002 is connected by the bus 1007 for communicating information. Bus 1007 may be configured using a single bus or may be configured using different buses for each device.
　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。 Further, the device includes hardware such as a microprocessor, a digital signal processor (Digital Signal Processor: DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA). The hardware may implement some or all of each functional block. For example, processor 1001 may be implemented using at least one of these 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。 Further, the notification of information is not limited to the mode / embodiment described in the present disclosure, and may be performed by using another method. For example, information notification includes physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), upper layer signaling (eg, RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block)). (MIB), System Information Block (SIB)), other signals or a combination thereof. RRC signaling may also be referred to as an RRC message, for example, RRC Connection Setup. ) Message, RRC Connection Reconfiguration message, etc. may be used.
　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 the present disclosure includes LongTermEvolution (LTE), LTE-Advanced (LTE-A), SUPER3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system ( 5G), FutureRadioAccess (FRA), NewRadio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UltraMobile Broadband (UMB), IEEE802.11 (Wi-Fi (registered trademark)) , IEEE802.16 (WiMAX®), IEEE802.20, Ultra-WideBand (UWB), Bluetooth®, and other systems that utilize appropriate systems and at least one of the next generation systems extended based on them. It may be applied to one. In addition, 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 the present disclosure present elements of various steps using exemplary order, and are not limited to the particular 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。 In some cases, the specific operation performed by the base station in the present disclosure may be performed by its upper node. In a network consisting of one or more network nodes having a base station, various operations performed for communication with the terminal are performed by the base station and other network nodes other than the base station (for example, MME or). It is clear that it can be done by at least one of (but not limited to, S-GW, etc.). Although the case where there is one network node other than the base station is illustrated 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 and signals (information, etc.) can be output from the upper layer (or lower layer) to the lower layer (or upper layer). Input / output may be performed via a plurality of 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。 The input / output information may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information can be overwritten, updated, or added. The output information may be deleted. The input information may be transmitted to another device.
　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 1 bit (0 or 1), by a boolean value (Boolean: true or false), or by comparing numerical values (for example, a predetermined value). It may be done by comparison with the 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, in combination, or switched with execution. Further, the notification of predetermined information (for example, the notification of "being X") is not limited to the explicit one, but is performed implicitly (for example, the notification of the predetermined information is not performed). May be good.
　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 by any other name, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module. , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
　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。 Further, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, a website, where the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.). When transmitted from a server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission medium.
　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 techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It 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。 Note that the terms explained in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Also, the signal may be a message. Further, the component carrier (CC) may be referred to as 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, relative values from predetermined values, or using other corresponding information. It may be represented. For example, the radio resource may be one indicated by an index.
　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 above parameters are not limited in any respect. Further, mathematical formulas and the like using these parameters may differ from those explicitly disclosed in this disclosure. Since various channels (eg, PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, the various names assigned to these various channels and information elements are in any respect limited names. is not 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 this disclosure, "Base Station (BS)", "Wireless Base Station", "Fixed Station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", " "Access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "cell group" Terms such as "carrier" and "component carrier" can be used interchangeably. Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
　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。 The base station can accommodate one or more (for example, three) cells (also called sectors). When a base station accommodates multiple cells, the entire base station coverage area can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)). Communication services can also be provided by Head: RRH).
　「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 a base station that provides communication services in this coverage, and part or all of the coverage area of at least one of the base station subsystems.
　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 the present disclosure, terms such as "mobile station (MS)", "user terminal", "user equipment (UE)", and "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。 Mobile stations can be used by those skilled in the art as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless. It may also be referred to as 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 the 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 the mobile body, the mobile body itself, or the like. The moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be. It should be noted that at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation. For example, at least one of a base station and a 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。 Further, the base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter). For example, communication between a base station and a mobile station has been replaced with communication between a plurality of mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). Each aspect / embodiment of the present disclosure may be applied to the configuration. In this case, the mobile station may have the functions of the base station. In addition, words such as "up" and "down" may be read as words corresponding to inter-terminal communication (for example, "side"). For example, an uplink channel, a downlink channel, and the like may be read as a side channel.
　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, the mobile station in the present disclosure may be read as a base station. In this case, the base station may have the functions of the mobile station.
The radio frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe.
Subframes may further consist of one or more slots in the time domain. The subframe may have a fixed time length (eg, 1 ms) that is 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。 The numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel. Numerology includes, for example, SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame configuration, transmission / reception. It may indicate at least one of a specific filtering process performed by the machine in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and 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。 The slot may be composed of one or more symbols (Orthogonal Frequency Division Multiple Access (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Slots may be 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。 The slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. The mini-slot may also be referred to as a sub-slot. A minislot may consist of a smaller number of symbols than the slot. PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as PDSCH (or PUSCH) mapping type A. The PDSCH (or PUSCH) transmitted using the minislot 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。 The wireless frame, subframe, slot, minislot and symbol all represent the time unit when transmitting a signal. The radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
　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 referred to as a transmission time interval (TTI), a plurality of consecutive subframes may be referred to as TTI, and one slot or one minislot may be referred to as TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (eg, 1-13 symbols), or a period longer than 1ms. It may be. The unit representing TTI may be called a slot, a mini slot, 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 time unit of scheduling in wireless communication. For example, in an LTE system, a base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units. 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 such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation. When a TTI is given, the time interval (for example, the number of symbols) to which the transport block, code block, code word, 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。 When one slot or one mini slot is called TTI, one or more TTIs (that is, one or more slots or one or more mini slots) may be the minimum time unit for scheduling. Further, the number of slots (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 having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like. TTIs shorter than normal TTIs may also be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
　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。 The long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) may be read as less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
　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。 The resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain. The number of subcarriers contained in RB may be the same regardless of numerology, and may be, for example, 12. The number of subcarriers contained in the RB may be determined based on numerology.
　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。 Further, the time domain of RB may include one or more symbols, and may have a length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI. Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of 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 include a physical resource block (Physical RB: PRB), a sub-carrier group (Sub-Carrier Group: SCG), a resource element group (Resource Element Group: REG), a PRB pair, an RB pair, and the like. 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。 Further, the resource block may be composed of one or a plurality of resource elements (ResourceElement: RE). For example, 1RE may be a radio resource area 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。 Bandwidth Part (BWP) (which may also be called partial bandwidth, etc.) may represent a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. Good. Here, the common RB may be specified by the index of the RB with respect to 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 set in one carrier for the 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 send or receive a given signal / channel outside the active BWP. In addition, "cell", "carrier" and the like in this 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 above-mentioned structures such as wireless frames, subframes, slots, mini slots and symbols are merely examples. For example, the number of subframes contained in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in RB. The number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
　「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 connection between two or more elements, and each other. It can include the presence of one or more intermediate elements between two "connected" or "combined" elements. The connection or connection between the elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access". As used in the present disclosure, the two elements use at least one of one or more wires, cables and printed electrical connections, and, as some non-limiting and non-comprehensive examples, the radio frequency domain. , Electromagnetic energies with wavelengths in the microwave and light (both visible and invisible) regions, etc., can be considered to be "connected" or "coupled" to each other.
　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 be called a pilot (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 phrase "based on" as used in this disclosure does not mean "based on" unless otherwise stated. In other words, the statement "based on" means both "based only" and "at least based 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。 The "means" in the configuration of each of the above devices may be replaced with a "part", a "circuit", a "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 designations such as "first", "second" as used in this disclosure does not generally limit the quantity or order of those elements. These designations can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted there, or that the first element must somehow precede the second element.
　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。 When "include", "including" and variations thereof are used in the present disclosure, these terms are as comprehensive as the term "comprising". Is intended. Moreover, the term "or" used in the present disclosure is intended not 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 the present disclosure, if articles are added by translation, for example, 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 include a wide variety of actions. "Judgment" and "decision" are, for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry). (For example, searching in a table, database or another data structure), ascertaining may be regarded as "judgment" or "decision". Also, "judgment" and "decision" are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (Accessing) (for example, accessing data in memory) may be regarded as "judgment" or "decision". In addition, "judgment" and "decision" mean that the things such as solving, selecting, choosing, establishing, and comparing are regarded as "judgment" and "decision". Can include. That is, "judgment" and "decision" may include considering some action as "judgment" and "decision". Further, "judgment (decision)" may be read as "assuming", "expecting", "considering" and 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 mean that "A and B are different from C". Terms such as "separate" and "combined" may be interpreted in the same way as "different".
　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 may be implemented as an amendment or modification without departing from the purpose and scope of the present disclosure, which is determined by the description of the scope of claims. Therefore, the description of the present disclosure is for the purpose of exemplary explanation and does not have any limiting meaning to the present disclosure.
　10　無線通信システム
　20　NG-RAN
　100　gNB
　200　UE
　210　無線送信部
　220　無線受信部
　230　ネットワーク情報取得部
　240　サポート判定部
　250　テーブル保持部
　251　変換テーブル
　260　アクセス制御部
　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
  10 Wireless communication system 20 NG-RAN
100 gNB
200 UE
210 Wireless transmitter 220 Wireless receiver 230 Network information acquisition unit 240 Support judgment unit 250 Table holding unit 251 Conversion table 260 Access control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

Claims (5)

  1. 　端末であって、
    　ネットワークから、前記ネットワークがサポートしているアクセス規制の関連情報を受信する受信部と、
    　前記関連情報に基づいて、前記ネットワークへのアクセス時に用いるアクセス属性を決定する制御部と
    を備え、
    　前記制御部は、決定した前記アクセス属性によるアクセスとして、前記ネットワークへのアクセスを実行する端末。     It ’s a terminal,
    A receiver that receives information related to access restrictions supported by the network from the network,
    A control unit that determines an access attribute to be used when accessing the network based on the related information is provided.
    The control unit is a terminal that executes access to the network as an access according to the determined access attribute.
  2. 　前記制御部は、前記関連情報に基づいて、前記端末のアクセスカテゴリを前記ネットワークがサポートしているアクセスカテゴリに変更する請求項１に記載の端末。 The terminal according to claim 1, wherein the control unit changes the access category of the terminal to an access category supported by the network based on the related information.
  3. 　前記制御部は、前記端末のアクセスカテゴリと、前記ネットワークがサポートしているアクセスカテゴリとの関連付けを示すテーブルに基づいて、前記アクセスカテゴリを変更する請求項２に記載の端末。 The terminal according to claim 2, wherein the control unit changes the access category based on a table showing the association between the access category of the terminal and the access category supported by the network.
  4. 　前記制御部は、前記関連情報に基づいて、前記端末が利用する端末設定種別を前記ネットワークがサポートしている端末設定種別に変更する請求項１に記載の端末。 The terminal according to claim 1, wherein the control unit changes the terminal setting type used by the terminal to a terminal setting type supported by the network based on the related information.
  5. 　前記制御部は、前記端末が利用する端末設定種別と、前記ネットワークがサポートしている端末設定種別との関連付けを示すテーブルに基づいて前記端末設定種別を変更する請求項４に記載の端末。
          The terminal according to claim 4, wherein the control unit changes the terminal setting type based on a table showing an association between the terminal setting type used by the terminal and the terminal setting type supported by the network.
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