WO2022172443A1 - ネットワークノード及び通信方法 - Google Patents
ネットワークノード及び通信方法 Download PDFInfo
- Publication number
- WO2022172443A1 WO2022172443A1 PCT/JP2021/005504 JP2021005504W WO2022172443A1 WO 2022172443 A1 WO2022172443 A1 WO 2022172443A1 JP 2021005504 W JP2021005504 W JP 2021005504W WO 2022172443 A1 WO2022172443 A1 WO 2022172443A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- udr
- terminal
- time
- network node
- information
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 description 50
- 238000010586 diagram Methods 0.000 description 24
- 238000007726 management method Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 11
- 238000011084 recovery Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000011664 signaling Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 101150119040 Nsmf gene Proteins 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/30—Network data restoration; Network data reliability; Network data fault tolerance
Definitions
- the present invention relates to a network node and communication method in a communication system.
- 5G or NR New Radio
- NR New Radio
- 5G A wireless communication system called “5G” (hereinafter, the wireless communication system is referred to as “5G” or "NR”) is under study.
- 5G various radio technologies are being studied in order to meet the requirements of realizing a throughput of 10 Gbps or more and keeping the delay in the radio section to 1 ms or less.
- 5GC 5G Core Network
- EPC Evolved Packet Core
- LTE Long Term Evolution
- E-UTRAN Radio Access Network
- NG-RAN Next Generation-Radio Access Network
- Evolved Universal Terrestrial Radio Access Network A network architecture including NG-RAN (Next Generation-Radio Access Network) corresponding to Evolved Universal Terrestrial Radio Access Network
- the subscriber's profile information does not match, the function for correcting the mismatched profile information has not been standardized. Therefore, if the subscriber's profile information does not match, the service based on the latest contract information or location information may not be provided.
- the present invention has been made in view of the above points, and aims to match subscriber profile information in a network.
- a transmitting unit that registers a terminal in a UDR (User Data Repository), a receiving unit that receives information identifying the UDR from the UDR as a response to registration of the terminal, the terminal, a control unit that holds information identifying the UDR and a first time at which the terminal is registered in the UDR in association with each other;
- a unit is provided for the network node to determine whether a re-registration operation of the terminal is required based on the time included in the failure notification and the first time.
- subscriber profile information can be matched in the network.
- FIG. 1 is a diagram for explaining an example of a communication system
- FIG. 1 is a diagram for explaining an example of a communication system in a roaming environment
- FIG. 10 is a diagram for explaining an example (1) of profile information mismatch
- FIG. 11 is a diagram for explaining an example (2) of profile information mismatch
- FIG. 11 is a diagram for explaining an example (3) of profile information mismatch
- BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the example (1) of the communication system in embodiment of this invention. It is a figure for demonstrating the example (2) of the communication system in embodiment of this invention.
- FIG. 4 is a sequence diagram for explaining an example (1) of updating profile information according to the embodiment of the present invention
- FIG. 4 is a sequence diagram for explaining an example (1) of updating profile information according to the embodiment of the present invention
- FIG. 10 is a sequence diagram for explaining example (2) of updating profile information according to the embodiment of the present invention. It is a figure showing an example of functional composition of base station 10 in an embodiment of the invention.
- 2 is a diagram showing an example of the functional configuration of terminal 20 according to the embodiment of the present invention;
- FIG. 2 is a diagram showing an example of hardware configurations of base station 10 and terminal 20 according to an embodiment of the present invention;
- LTE Long Term Evolution
- LTE-Advanced and LTE-Advanced and later systems eg: NR
- wireless LAN Local Area Network
- “configuring" the wireless parameters and the like may mean that predetermined values are set in advance (pre-configure), or the network node 30 or A wireless parameter notified from the terminal 20 may be set.
- FIG. 1 is a diagram for explaining an example of a communication system.
- a communication system consists of a UE, which is a terminal 20 , and a plurality of network nodes 30 .
- one network node 30 corresponds to each function, but one network node 30 may realize a plurality of functions, or a plurality of network nodes 30 may realize one function.
- the "connection" described below may be a logical connection or a physical connection.
- a RAN Radio Access Network
- AMF Access and Mobility Management Function
- UPF User plane function
- the AMF is a network node 30 having functions such as RAN interface termination, NAS (Non-Access Stratum) termination, registration management, connection management, reachability management, and mobility management.
- the UPF is a network node 30 that has functions such as a PDU (Protocol Data Unit) session point to the outside that interconnects with a DN (Data Network), packet routing and forwarding, and user plane QoS (Quality of Service) handling.
- PDU Protocol Data Unit
- DN Data Network
- packet routing and forwarding and user plane QoS (Quality of Service) handling.
- UPF and DN constitute a network slice.
- a plurality of network slices are constructed in the wireless communication network according to the embodiment of the present invention.
- AMF is UE, RAN, SMF (Session Management function), NSSF (Network Slice Selection Function), NEF (Network Exposure Function), NRF (Network Repository Function), UDM (Unified Data Management), AUSF (Authentication Server Function), PCF (Policy Control Function) and AF (Application Function) are connected.
- AMF, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, AF are interconnected via respective service-based interfaces Namf, Nsmf, Nnssf, Nnef, Nnrf, Nudm, Nausf, Npcf, Naf. network node 30 .
- the SMF is a network node 30 that has functions such as session management, UE IP (Internet Protocol) address allocation and management, DHCP (Dynamic Host Configuration Protocol) function, ARP (Address Resolution Protocol) proxy, and roaming function.
- a NEF is a network node 30 that has the function of notifying other NFs (Network Functions) of capabilities and events. NSSF selects the network slice to which the UE connects, determines the allowed NSSAI (Network Slice Selection Assistance Information), determines the NSSAI to be set, determines the AMF set to which the UE connects. be.
- a PCF is a network node 30 having a function of performing network policy control.
- AF is a network node 30 having the function of controlling an application server.
- An NRF is a network node 30 that has the ability to discover NF instances that provide services.
- a UDM is a network node 30 that manages subscriber data and authentication data. The UDM is connected to a UDR (User Data Repository) that holds the data.
- UDR User Data Repository
- FIG. 2 is a diagram for explaining an example of a communication system in a roaming environment.
- the network consists of a UE, which is a terminal 20 , and a plurality of network nodes 30 .
- one network node 30 corresponds to each function, but one network node 30 may realize a plurality of functions, or a plurality of network nodes 30 may realize one function.
- the "connection" described below may be a logical connection or a physical connection.
- RAN is a network node 30 with radio access functionality and is connected with UE, AMF and UPF.
- the AMF is a network node 30 having functions such as RAN interface termination, NAS termination, registration management, connection management, reachability management, and mobility management.
- a UPF is a network node 30 that has functions such as PDU session point to the outside world interconnecting DNs, packet routing and forwarding, user plane QoS handling, and so on.
- UPF and DN constitute a network slice.
- a plurality of network slices are constructed in the wireless communication network according to the embodiment of the present invention.
- AMF is connected to UE, RAN, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, AF, and SEPP (Security Edge Protection Proxy).
- AMF, SMF, NSSF, NEF, NRF, UDM, AUSF, PCF, AF are interconnected via respective service-based interfaces Namf, Nsmf, Nnssf, Nnef, Nnrf, Nudm, Nausf, Npcf, Naf. network node 30 .
- the SMF is a network node 30 that has functions such as session management, UE IP address allocation and management, DHCP function, ARP proxy, roaming function, and the like.
- a NEF is a network node 30 that has the function of notifying other NFs of capabilities and events.
- the NSSF is a network node 30 that has functions such as selecting a network slice to which the UE connects, determining allowed NSSAIs, determining configured NSSAIs, determining the AMF set to which the UE connects, and so on.
- a PCF is a network node 30 having a function of performing network policy control.
- AF is a network node 30 having the function of controlling an application server.
- An NRF is a network node 30 that has the ability to discover NF instances that provide services.
- SEPP is a non-transparent proxy that filters control plane messages between PLMNs (Public Land Mobile Networks).
- the vSEPP shown in FIG. 2 is the SEPP in the visited network, and the hSEPP is the SEPP in the home network.
- the UE is in a roaming environment connected with RAN and AMF in VPLMN (Visited PLMN).
- VPLMN and HPLMN are connected via vSEPP and hSEPP.
- the UE can, for example, communicate with the HPLMN's UDM via the VPLMN's AMF.
- the UDR User Data Repository
- DLA Data layered architecture
- the subscriber's profile information does not match, it may not be possible to provide services based on the latest contract information or location information, which is a problem.
- the subscriber's profile information is inconsistent between the UDR and AMF, SMF and SMSF (Short Message Service Function), a matching process is required.
- FIG. 3 is a diagram for explaining an example (1) of profile information mismatch.
- the UDM receives an SO (Service order), it transmits information on the SO to the AMF.
- SO Service order
- the UDM since the profile held by the UDR is in-zone #A with old in-zone information due to a failure or the like, the UDM notifies the information related to SO to AMF#A.
- the actual terminal has moved from 5G_Pool#A managed by AMF#A to 5GPool#B managed by AMF#B, and there is no corresponding subscriber information in AMF#A, resulting in an error response.
- the UDM should originally notify the AMF#B of the information related to the SO.
- FIG. 4 is a diagram for explaining an example (2) of profile information mismatch.
- the SMS-GMSC SMS Gateway Mobile Switching Center
- the SMS-GMSC inquires of the UDM about the location of the called subscriber.
- the profile held by the UDR has old location information due to a failure or the like
- the UDM responds with an incorrect SMSF address, and the SMS-GMSC notifies SMSF #A.
- the actual terminal has moved from 5G_Pool#A corresponding to SMSF#A to 5GPool#B corresponding to SMSF#B, and SMSF#A does not have information on the corresponding subscriber, an error response is returned.
- the UDM should originally notify SMSF#B of the information related to the incoming SMS. As a result, the incoming SMS becomes an error.
- FIG. 5 is a diagram for explaining an example (3) of profile information mismatch.
- T-ADS Terminal Access Domain Selection
- MME Mobility Management Entity
- AMF Access Management Entity
- FIG. 6 is a diagram for explaining example (1) of a communication system according to an embodiment of the present invention.
- UDR#R registers its own NF profile including settings with UDR#R in NRF.
- UDR#R notifies AMF#A of the UDR number (UDR#R) at the time of user registration, and AMF#A associates and holds the user and the UDR number (step 2).
- IMSI International Mobile Subscriber Identity
- SUPI Subscribescription Permanent Identifier
- user B and UDR#R, user D and UDR#R, user Z and other UDR#Y are associated and held in AMF#A.
- user location information in UDR#R holds that user B is located in AMF#A, user D is located in AMF#A, and user E is located in AMF#B.
- FIG. 7 is a diagram for explaining example (2) of the communication system according to the embodiment of the present invention.
- UDR#R it is assumed that a failure occurs in UDR#R. Since UDR#R failed, it is switched to UDR#r.
- the UDR#r registers with the NRF that a failure has occurred in the UDR#R of the switching source master. Subsequently, the NRF notifies AMF#A that a failure has occurred in UDR#R (step 4).
- AMF#A sends LICH (Location information confirmed in HSS) to the user (terminal) associated with UDR#R.
- C Execute an operation equivalent to (Not Confirmed) to quickly restore the location registration information held in the UDR.
- LICH N.
- the corresponding operation may be an operation of performing location registration on the UDM upon location registration triggered by the user, and an operation of prompting location registration again at the time of incoming/outgoing calls. For example, in the example shown in FIG. 7, since user B and user D are held in association with UDR#R, AMF#A asks user B and user D to re-register their locations with UDM. may be urged.
- the UDR#R may notify the NRF of its own NF profile including the UDR number and SUPI range settings. AMF#A may then obtain the NF profile of the UDR from the NRF. As a result, AMF#A can grasp the users held in UDR#R, so that UDR#R does not notify AMF#A of the UDR number (UDR#R) in step 2 shown in FIG. becomes unnecessary.
- SUPI is an identifier that identifies a subscriber in the 5G system, and IMSI is one form thereof, and may be held in UDR.
- the AMF requests the NRF in advance to update the NF profile of the UDR, and the completion of failure occurrence restart is sent to the UDR as the update notification of the NF profile of the UDR. to the AMF via the NRF.
- following step 5 shown in FIG. may notify the terminal of the request to re-register with the UDR.
- FIG. 8 is a sequence diagram for explaining example (1) of updating profile information according to the embodiment of the present invention.
- transmission to or reception to UDR may be via UDM.
- UDR#R (30C) registers the UDR with NRF (30B).
- AMF (30A) sends the user registration to UDR#R (30C).
- the UDR#R notifies the AMF of the UDR number (UDR#R).
- the AMF holds the correspondence between the IMSI and the UDR number (UDR#R). Step S14 allows the AMF to know the UDR with which the user is registered.
- step S21 a failure occurs in UDR#R.
- step S22 switching from UDR#R to UDR#r (30D) is performed.
- step S23 the UDR#r registers the failure of the UDR#R with the NRF.
- step S24 the NRF transmits a failure notification of UDR#R to the AMF.
- FIG. 9 is a sequence diagram for explaining example (2) of updating profile information according to the embodiment of the present invention.
- FIG. 9 shows another example of updating profile information.
- the UDR#R (30C) registers the UDR with the NRF (30B).
- AMF (30A) sends the user registration to UDR#R (30C).
- the UDR#R notifies the AMF of the UDR number (UDR#R). Note that steps S32 and S33 may be executed via the NRF.
- step S34 the AMF retains the time when the user was registered in UDR#R in association with the UE context corresponding to the user registration in step S32. That is, the AMF may associate and hold the UE context, the information indicating the registered UDR, that is, the UDR#R, and the time registered in the UDR#R.
- step S41 a failure occurs in UDR#R.
- UDR#R it is assumed that mirroring between the master and the backup is performed at a predetermined timing or at a predetermined cycle.
- step S51 the failure of UDR#R is recovered.
- step S51 it is assumed that in UDR#R, restoration to the state at the time of the most recent mirroring execution is completed by backup.
- the UDR#R notifies the NRF of the time t1 when the mirroring between the master and the backup was executed and the time t2 when the system recovered from the failure, that is, when it returned to the most recent mirroring execution state.
- the NRF transmits the time t1 and time t2 received from the UDR#R to the AMF.
- the notifications in steps S52 and S53 may include information indicating that a failure occurred in UDR#R at time t1 and information indicating recovery from the failure at time t2.
- C. Equivalent action is performed. That is, if the time held in association with the UE context registered in UDR#R in step S34 is after time t1 and before time t2, the UE context requires a procedure for recovering profile information in UDR#R. Decide there is.
- a profile information recovery procedure in a UDR may be, for example, a re-registration operation for that UDR.
- step S54 the profile information recovery procedure is not executed for the UE contexts registered in UDR#R before time t1 and the UE contexts registered in UDR#R after time t2. Therefore, by executing the profile information update sequence shown in FIG. 9, the load on the network can be reduced rather than executing the profile information recovery procedure for all UE contexts registered in UDR#R from the AMF. can be done.
- the AMF can perform the location registration operation again and update the subscriber's profile information even if a failure occurs in the UDR. Also, when a UDR fails, the AMF can reduce the number of UE contexts that perform the profile information recovery procedure in the UDR, thereby reducing the load.
- subscriber profile information can be matched in the network.
- the base station 10, network node 30 and terminal 20 include functionality to implement the embodiments described above. However, each of the base station 10, the network node 30 and the terminal 20 may have only part of the functions in the embodiments.
- FIG. 10 is a diagram showing an example of the functional configuration of the base station 10.
- the base station 10 has a transmitting section 110, a receiving section 120, a setting section 130, and a control section 140.
- the functional configuration shown in FIG. 10 is merely an example. As long as the operation according to the embodiment of the present invention can be performed, the functional division and the names of the functional units may be arbitrary.
- the network node 30 may have a functional configuration similar to that of the base station 10 . Also, the network node 30 having multiple different functions on the system architecture may be composed of multiple network nodes 30 separated for each function.
- the transmission unit 110 includes a function of generating a signal to be transmitted to the terminal 20 or another network node 30 and transmitting the signal by wire or wirelessly.
- the receiving unit 120 includes a function of receiving various signals transmitted from the terminal 20 or other network nodes 30 and acquiring, for example, higher layer information from the received signals.
- the setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20 in the storage device, and reads them from the storage device as necessary.
- the content of the setting information is, for example, subscriber profile information in the network.
- the control unit 140 performs processing related to update of profile information of subscribers in the network, as described in the embodiment. Also, the control unit 140 performs processing related to communication with the terminal 20 .
- a functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110
- a functional unit related to signal reception in control unit 140 may be included in receiving unit 120 .
- FIG. 11 is a diagram showing an example of the functional configuration of the terminal 20.
- the terminal 20 has a transmitting section 210, a receiving section 220, a setting section 230, and a control section 240.
- the functional configuration shown in FIG. 11 is merely an example. As long as the operation according to the embodiment of the present invention can be performed, the functional division and the names of the functional units may be arbitrary.
- the transmission unit 210 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal.
- the receiving unit 220 wirelessly receives various signals and acquires a higher layer signal from the received physical layer signal.
- the receiving unit 220 also has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, reference signals, etc. transmitted from the network node 30 .
- the setting unit 230 stores various types of setting information received from the network node 30 by the receiving unit 220 in the storage device, and reads them from the storage device as necessary.
- the setting unit 230 also stores preset setting information.
- the contents of the setting information are, for example, information related to networks to which connection is permitted.
- the control unit 240 performs processing related to connection control to networks and network slices, as described in the embodiments.
- a functional unit related to signal transmission in control unit 240 may be included in transmitting unit 210
- a functional unit related to signal reception in control unit 240 may be included in receiving unit 220 .
- each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
- a functional block may be implemented by combining software in the one device or the plurality of devices.
- Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
- a functional block (component) that performs transmission is called a transmitting unit or transmitter.
- the implementation method is not particularly limited.
- FIG. 12 is a diagram illustrating an example of hardware configurations of the base station 10 and the terminal 20 according to an embodiment of the present disclosure.
- the network node 30 may have hardware configuration similar to that of the base station 10 .
- the base station 10 and terminal 20 described above are physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. good too.
- the term "apparatus” can be read as a circuit, device, unit, or the like.
- the hardware configuration of the base station 10 and terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
- Each function of the base station 10 and the terminal 20 is performed by the processor 1001 performing calculations and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. or by controlling at least one of data reading and writing in the storage device 1002 and the auxiliary storage device 1003 .
- the processor 1001 for example, operates an operating system and controls the entire computer.
- the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
- CPU central processing unit
- the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
- the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them.
- programs program codes
- software modules software modules
- data etc.
- the program a program that causes a computer to execute at least part of the operations described in the above embodiments is used.
- control unit 140 of base station 10 shown in FIG. 10 may be implemented by a control program stored in storage device 1002 and operated by processor 1001 .
- the control unit 240 of the terminal 20 shown in FIG. 11 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001.
- FIG. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
- the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
- the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
- the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
- the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
- the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 1003 .
- the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
- the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
- FDD frequency division duplex
- TDD time division duplex
- the transceiver may be physically or logically separate implementations for the transmitter and receiver.
- the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
- the output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
- Each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
- the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
- the base station 10 and the terminal 20 include hardware such as microprocessors, digital signal processors (DSPs), ASICs (Application Specific Integrated Circuits), PLDs (Programmable Logic Devices), and FPGAs (Field Programmable Gate Arrays). , and part or all of each functional block may be implemented by the hardware.
- processor 1001 may be implemented using at least one of these pieces of hardware.
- a transmitting unit that registers a terminal in a UDR (User Data Repository), and information that identifies the UDR from the UDR as a response to registration of the terminal.
- a receiving unit for receiving; a control unit that holds information identifying the terminal, the UDR, and a first time when the terminal is registered in the UDR in association with each other; is received, the control unit determines whether re-registration operation of the terminal is required based on the time included in the failure notification and the first time, provided by a network node be done.
- the AMF can reduce the number of UE contexts executing the profile information recovery procedure in the UDR and reduce the load. That is, subscriber profile information can be matched in the network.
- the receiving unit includes a second time when the UDR performed mirroring with the backup, and a third time when the UDR returned to the state at the time when the UDR performed mirroring based on the backup after a failure occurred. Failure notifications may be received.
- the AMF can reduce the number of UE contexts that perform the profile information recovery procedure in the UDR and reduce the load when the UDR fails.
- the control unit may determine that the re-registration operation of the terminal is necessary when the first time is after the second time and before the third time.
- the AMF can reduce the number of UE contexts that perform the profile information recovery procedure in the UDR and reduce the load when the UDR fails.
- a transmission procedure for registering a terminal in a UDR (User Data Repository), and a reception procedure for receiving information identifying the UDR from the UDR as a response to the registration of the terminal , a control procedure for associating and holding information identifying the terminal, the UDR, and a first time at which the terminal was registered in the UDR;
- a communication method is provided in which a network node performs a procedure for determining whether a re-registration operation of said terminal is required based on the included time and said first time.
- the AMF can reduce the number of UE contexts executing the profile information recovery procedure in the UDR and reduce the load. That is, subscriber profile information can be matched in the network.
- the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
- the processing order may be changed as long as there is no contradiction.
- the network node 30 and the terminal 20 have been described using functional block diagrams for convenience of process description, such devices may be implemented in hardware, software, or a combination thereof.
- the software operated by the processor of the network node 30 according to the embodiment of the invention and the software operated by the processor of the terminal 20 according to the embodiment of the invention are respectively stored in random access memory (RAM), flash memory, read-only memory. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
- notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
- notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
- RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.
- Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark) )), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems and extended It may be applied to at least one of the next generation systems. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).
- a specific operation performed by the network node 30 in this specification may be performed by its upper node in some cases.
- various operations performed for communication with terminal 20 may be network node 30 and other network nodes other than network node 30 (eg, but not limited to MME or S-GW).
- MME Mobility Management Entity
- S-GW Serving Mobility Management Entity
- Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
- Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
- the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).
- Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
- software, instructions, information, etc. may be transmitted and received via a transmission medium.
- the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
- wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
- wireless technology infrared, microwave, etc.
- data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
- the channel and/or symbols may be signaling.
- a signal may also be a message.
- a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
- system and “network” used in this disclosure are used interchangeably.
- information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
- radio resources may be indexed.
- base station BS
- radio base station base station
- base station device fixed station
- NodeB NodeB
- eNodeB eNodeB
- gNodeB gNodeB
- a base station can accommodate one or more (eg, three) cells.
- the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
- RRH indoor small base station
- the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication in this coverage.
- MS Mobile Station
- UE User Equipment
- a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
- At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
- At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
- the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
- at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
- at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
- IoT Internet of Things
- the base station in the present disclosure may be read as a user terminal.
- communication between a base station and a user terminal is replaced with communication between a plurality of terminals 20 (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
- the terminal 20 may have the functions of the network node 30 described above.
- words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
- uplink channels, downlink channels, etc. may be read as side channels.
- user terminals in the present disclosure may be read as base stations.
- the base station may have the functions that the above-described user terminal has.
- determining and “determining” used in this disclosure may encompass a wide variety of actions.
- “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
- "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
- judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
- judgment and “decision” may include considering that some action is “judgment” and “decision”.
- judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
- connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
- two elements are in the radio frequency domain using at least one of one or more wires, cables and printed electrical connections, and as some non-limiting and non-exhaustive examples. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
- the reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.
- RS Reference Signal
- any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
- a and B are different may mean “A and B are different from each other.”
- the term may also mean that "A and B are different from C”.
- Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
- notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.
- the AMF in the present disclosure is an example of a network node.
- base station 110 transmitting unit 120 receiving unit 130 setting unit 140 control unit 20 terminal 210 transmitting unit 220 receiving unit 230 setting unit 240 control unit 30 network node 1001 processor 1002 storage device 1003 auxiliary storage device 1004 communication device 1005 input device 1006 output device
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
次に、これまでに説明した処理及び動作を実施する基地局10、ネットワークノード30及び端末20の機能構成例を説明する。基地局10、ネットワークノード30及び端末20は上述した実施例を実施する機能を含む。ただし、基地局10、ネットワークノード30及び端末20はそれぞれ、実施例の中の一部の機能のみを備えることとしてもよい。
図10は、基地局10の機能構成の一例を示す図である。図10に示されるように、基地局10は、送信部110と、受信部120と、設定部130と、制御部140とを有する。図10に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実施できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。なお、ネットワークノード30は、基地局10と同様の機能構成を有してもよい。また、システムアーキテクチャ上で複数の異なる機能を有するネットワークノード30は、機能ごとに分離された複数のネットワークノード30から構成されてもよい。
図11は、端末20の機能構成の一例を示す図である。図11に示されるように、端末20は、送信部210と、受信部220と、設定部230と、制御部240とを有する。図11に示される機能構成は一例に過ぎない。本発明の実施の形態に係る動作を実施できるのであれば、機能区分及び機能部の名称はどのようなものでもよい。
上記実施形態の説明に用いたブロック図(図10及び図11)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、物理的又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、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(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つの装置又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。
以上、説明したように、本発明の実施の形態によれば、端末をUDR(User Data Repository)に登録する送信部と、前記端末の登録の応答として、前記UDRを識別する情報を前記UDRから受信する受信部と、前記端末と、前記UDRを識別する情報と、前記端末を前記UDRに登録した第1の時刻とを、関連付けて保持する制御部とを有し、前記受信部が前記UDRの障害通知を受信した場合、前記制御部は、前記障害通知に含まれる時刻及び前記第1の時刻に基づいて、前記端末の再登録動作が必要であるか否かを決定するネットワークノードが提供される。
以上、本発明の実施の形態を説明してきたが、開示される発明はそのような実施形態に限定されず、当業者は様々な変形例、修正例、代替例、置換例等を理解するであろう。発明の理解を促すため具体的な数値例を用いて説明がなされたが、特に断りのない限り、それらの数値は単なる一例に過ぎず適切な如何なる値が使用されてもよい。上記の説明における項目の区分けは本発明に本質的ではなく、2以上の項目に記載された事項が必要に応じて組み合わせて使用されてよいし、ある項目に記載された事項が、別の項目に記載された事項に(矛盾しない限り)適用されてよい。機能ブロック図における機能部又は処理部の境界は必ずしも物理的な部品の境界に対応するとは限らない。複数の機能部の動作が物理的には1つの部品で行われてもよいし、あるいは1つの機能部の動作が物理的には複数の部品により行われてもよい。実施の形態で述べた処理手順については、矛盾の無い限り処理の順序を入れ替えてもよい。処理説明の便宜上、ネットワークノード30及び端末20は機能的なブロック図を用いて説明されたが、そのような装置はハードウェアで、ソフトウェアで又はそれらの組み合わせで実現されてもよい。本発明の実施の形態に従ってネットワークノード30が有するプロセッサにより動作するソフトウェア及び本発明の実施の形態に従って端末20が有するプロセッサにより動作するソフトウェアはそれぞれ、ランダムアクセスメモリ(RAM)、フラッシュメモリ、読み取り専用メモリ(ROM)、EPROM、EEPROM、レジスタ、ハードディスク(HDD)、リムーバブルディスク、CD-ROM、データベース、サーバその他の適切な如何なる記憶媒体に保存されてもよい。
110 送信部
120 受信部
130 設定部
140 制御部
20 端末
210 送信部
220 受信部
230 設定部
240 制御部
30 ネットワークノード
1001 プロセッサ
1002 記憶装置
1003 補助記憶装置
1004 通信装置
1005 入力装置
1006 出力装置
Claims (4)
- 端末をUDR(User Data Repository)に登録する送信部と、
前記端末の登録の応答として、前記UDRを識別する情報を前記UDRから受信する受信部と、
前記端末と、前記UDRを識別する情報と、前記端末を前記UDRに登録した第1の時刻とを、関連付けて保持する制御部とを有し、
前記受信部が前記UDRの障害通知を受信した場合、前記制御部は、前記障害通知に含まれる時刻及び前記第1の時刻に基づいて、前記端末の再登録動作が必要であるか否かを決定するネットワークノード。 - 前記受信部は、前記UDRがバックアップとのミラーリングを実行した第2の時刻と、前記UDRが障害発生後前記バックアップに基づいてミラーリングを実行した時点の状態に復帰した第3の時刻とを含む前記障害通知を受信する請求項1記載のネットワークノード。
- 前記制御部は、前記第1の時刻が、前記第2の時刻以後かつ前記第3の時刻以前である場合、前記端末の再登録動作が必要であると決定する請求項2記載のネットワークノード。
- 端末をUDR(User Data Repository)に登録する送信手順と、
前記端末の登録の応答として、前記UDRを識別する情報を前記UDRから受信する受信手順と、
前記端末と、前記UDRを識別する情報と、前記端末を前記UDRに登録した第1の時刻とを、関連付けて保持する制御手順と、
前記UDRの障害通知を受信した場合、前記障害通知に含まれる時刻及び前記第1の時刻に基づいて、前記端末の再登録動作が必要であるか否かを決定する手順をネットワークノードが実行する通信方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022581147A JPWO2022172443A1 (ja) | 2021-02-15 | 2021-02-15 | |
PCT/JP2021/005504 WO2022172443A1 (ja) | 2021-02-15 | 2021-02-15 | ネットワークノード及び通信方法 |
CN202180090553.9A CN116762376A (zh) | 2021-02-15 | 2021-02-15 | 网络节点和通信方法 |
US18/269,677 US20240057010A1 (en) | 2021-02-15 | 2021-02-15 | Network node and communication method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2021/005504 WO2022172443A1 (ja) | 2021-02-15 | 2021-02-15 | ネットワークノード及び通信方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022172443A1 true WO2022172443A1 (ja) | 2022-08-18 |
Family
ID=82837512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/005504 WO2022172443A1 (ja) | 2021-02-15 | 2021-02-15 | ネットワークノード及び通信方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240057010A1 (ja) |
JP (1) | JPWO2022172443A1 (ja) |
CN (1) | CN116762376A (ja) |
WO (1) | WO2022172443A1 (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013168749A (ja) * | 2012-02-14 | 2013-08-29 | Ntt Docomo Inc | 加入者パケット交換機、移動通信システム |
-
2021
- 2021-02-15 US US18/269,677 patent/US20240057010A1/en active Pending
- 2021-02-15 JP JP2022581147A patent/JPWO2022172443A1/ja active Pending
- 2021-02-15 WO PCT/JP2021/005504 patent/WO2022172443A1/ja active Application Filing
- 2021-02-15 CN CN202180090553.9A patent/CN116762376A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013168749A (ja) * | 2012-02-14 | 2013-08-29 | Ntt Docomo Inc | 加入者パケット交換機、移動通信システム |
Non-Patent Citations (1)
Title |
---|
3GGP: "3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Study on Restoration of Profiles related to UDR (Release 17)", 3GPP TR 29.821 V0.1.0, 8 February 2021 (2021-02-08), pages 1 - 21, XP055963159, [retrieved on 20220921] * |
Also Published As
Publication number | Publication date |
---|---|
CN116762376A (zh) | 2023-09-15 |
US20240057010A1 (en) | 2024-02-15 |
JPWO2022172443A1 (ja) | 2022-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7520723B2 (ja) | 端末及び通信方法 | |
JP7412419B2 (ja) | ネットワークノード | |
WO2020145299A1 (ja) | ネットワークノード及び通知方法 | |
EP3751899B1 (en) | Method and device for determining ssc mode | |
EP3911022B1 (en) | Network node, and user device | |
WO2020104925A1 (en) | First core network to second core network interworking while reducing usage of default second core network resources | |
WO2022195878A1 (ja) | ネットワークノード及び通信方法 | |
JP7018884B2 (ja) | 通信方法 | |
WO2022091188A1 (ja) | ネットワークノード及び通信方法 | |
WO2022113370A1 (ja) | ネットワークノード及び通信方法 | |
JP2020036188A (ja) | 通信制御装置 | |
WO2022172443A1 (ja) | ネットワークノード及び通信方法 | |
WO2022097290A1 (ja) | 端末及び通信システム | |
WO2022239160A1 (ja) | 端末及び通信方法 | |
JP6967018B2 (ja) | Ran接続制御方法および基地局 | |
WO2023275996A1 (ja) | ネットワークノード及び通信方法 | |
WO2023084635A1 (ja) | ネットワークノード及び通信方法 | |
WO2023275997A1 (ja) | ネットワークノード及び通信方法 | |
EP4195780A1 (en) | Terminal, network node, and communication method | |
WO2022157899A1 (ja) | ネットワークノード、無線通信システム及び通信方法 | |
WO2022162921A1 (ja) | ネットワークノード、通信方法及びトランスポート | |
WO2022162920A1 (ja) | ネットワークノード及び通信方法 | |
EP3681246A1 (en) | Network node | |
CN112449404A (zh) | 一种改变用户终端网络接入类型的方法及设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21925693 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022581147 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18269677 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180090553.9 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21925693 Country of ref document: EP Kind code of ref document: A1 |