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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English (en)
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 PCT/JP2019/044010 priority Critical patent/WO2021090502A1/fr
Priority to CN201980101869.6A priority patent/CN114631340B/zh
Publication of WO2021090502A1 publication Critical patent/WO2021090502A1/fr

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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

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

Abstract

Un UE (200) reçoit, en provenance d'un réseau (20), des informations pertinentes d'une régulation d'accès prise en charge par le réseau, et détermine, sur la base des informations pertinentes reçues, un attribut d'accès utilisé lors de l'accès au réseau. L'UE (200) exécute, en tant qu'accès par l'attribut d'accès déterminé, un accès au réseau.　
PCT/JP2019/044010 2019-11-08 2019-11-08 Terminal WO2021090502A1 (fr)

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