WO2023181385A1

WO2023181385A1 - Terminal, network device, wireless communication system, and wireless communication method

Info

Publication number: WO2023181385A1
Application number: PCT/JP2022/014570
Authority: WO
Inventors: 哲広笹川; 俊介大原; 敬太北川; 洋介飯塚; 研司橋本
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2023-09-28

Abstract

This terminal comprises: a storage unit configured such that first subscriber information used in connecting to a first mobile object communication network can be written to the storage unit; a transmission unit that transmits, to a network device, an open request for requesting opening to the first mobile object communication network; and a reception unit that, in response to the open request, receives from the network device an open response indicating the completion of opening to the first mobile object communication network. The open request is accepted, conditional upon the execution of a specific operation of a terminal that stores second subscriber information used in connecting to a second mobile object communication network which is different from the first mobile object communication network.

Description

Terminals, network devices, wireless communication systems, and wireless communication methods

The present disclosure relates to a terminal equipped with an eSIM, a network device that communicates with the terminal equipped with the eSIM, a wireless communication system including the terminal and the network device, and a wireless communication method between the terminal equipped with the eSIM and the network device. .

Conventionally, SIMs (Subscriber Identity Modules) that can rewrite subscriber information such as IMSI (International Mobile Subscriber Identity) necessary for communicating with mobile communication networks using software have been known (for example, Patent Document 1). ). Such a SIM includes a UICC (Universal Integrated Circuit Card) as a hardware configuration and an eSIM (Embedded SIM) as a software configuration.

By the way, when changing the model of a device equipped with an eSIM, it is often the case that the user requests a change of model after performing authentication using a carrier account.

However, if account information related to a carrier account is illegally obtained by an attacker through illicit means such as phishing or malware, there is a possibility that the line will be hijacked during the procedure for establishing a mobile communication network for a terminal equipped with an eSIM. be.

Therefore, the present disclosure has been made in view of such circumstances, and provides a terminal, a network device, a wireless communication system, and a wireless communication method that can appropriately execute the procedure for establishing a mobile communication network for a terminal equipped with an eSIM. The purpose is to provide

One aspect of the disclosure includes a storage unit configured to be able to write first subscriber information used for connection to a first mobile communication network, and a storage unit configured to write first subscriber information used for connection to a first mobile communication network; a transmitting unit that transmits to the device; and a receiving unit that receives, from the network device, an opening response indicating completion of opening to the first mobile communication network in response to the opening request, and the opening request includes: The terminal is a terminal that can be accepted on the condition that the terminal performs a specific operation that stores second subscriber information used for connection to a second mobile communication network different from the first mobile communication network.

In one aspect of the disclosure, a first terminal having a storage section configured to be able to write first subscriber information used for connection to a first mobile communication network requests opening to the first mobile communication network. a receiving unit that receives an opening request to connect to the first mobile communication network; a transmitting unit that transmits an opening response indicating completion of opening to the first mobile communication network to the first terminal in response to the opening request; A network device comprising: a control unit that accepts the opening request on the condition that a specific operation of a second terminal storing second subscriber information used for connection to a second mobile communication network different from the communication network is performed; It is.

One aspect of the disclosure includes a first terminal and a network device, wherein the first terminal includes a storage section configured to be able to write first subscriber information used for connection to a first mobile communication network; a transmission unit that transmits an opening request to the network device to request opening to the first mobile communication network; and a transmission unit that sends the opening response indicating completion of opening to the first mobile communication network in response to the opening request a receiving unit that receives information from a network device, the network device including a second terminal that stores second subscriber information used for connection to a second mobile communication network different from the first mobile communication network. The wireless communication system includes a control unit that accepts the opening request on condition that a specific operation is executed.

In one aspect of the disclosure, a first terminal having a storage unit configured to be able to write first subscriber information used for connection to a first mobile communication network requests opening to the first mobile communication network. a step A of transmitting an opening request to a network device; and a step of the first terminal receiving an opening response from the network device indicating completion of opening to the first mobile communication network in response to the opening request. B, the opening request is accepted on the condition that a specific operation is performed on a terminal storing second subscriber information used for connection to a second mobile communication network different from the first mobile communication network. This is a wireless communication method.

FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10. FIG. 2 is a functional block diagram of the UE 200. FIG. 3 is a functional block configuration diagram of the providing server 30. FIG. 4 is a diagram showing operation example 1. FIG. 5 is a diagram showing operation example 2. FIG. 6 is a diagram showing an example of the hardware configuration of the providing server 30 and the UE 200. FIG. 7 is a diagram showing an example of the configuration of the vehicle 2001.

Hereinafter, embodiments will be described based on the drawings. Note that the same functions and configurations are given the same or similar symbols, and the description thereof will be omitted as appropriate.

[Embodiment]
(1) Overall schematic configuration of wireless communication system The overall schematic configuration of the wireless communication system 10 will be described below. FIG. 1 is an overall schematic configuration diagram of a wireless communication system 10 according to an embodiment. The wireless communication system 10 includes a network 20, a provision server 30, a management server 40, and a terminal 200 (hereinafter referred to as UE (User Equipment) 200). The provision server 30, the management server 40, and the UE 200 are configured to be able to communicate via the network 20.

In the embodiment, a case in which the model is changed from UE 200A to UE 200B will be mainly described. The UE 200A is an example of a terminal (second terminal) that stores second subscriber information used for connection to the second mobile communication network. The UE 200B is an example of a terminal (first terminal) having a storage section configured to be able to write first subscriber information used for connection to the first mobile communication network. UE 200A may be referred to as an old terminal, and UE 200B may be referred to as a new terminal.

The first mobile communication network and the second mobile communication network may include a RAN (Radio Access Network). The RAN may be a RAN that supports a communication method called 4G, 5G, Beyond 5G, 5G Evolution, or 6G. For example, the RAN may be NG-RAN (Next Generation-Radio Access Network) or eUTRAN (evolved Universal Terrestrial Radio Network).

Here, the first mobile communication network is a mobile communication network different from the second mobile communication network. For example, the communication carrier of the first mobile communication network may be different from the communication carrier of the second mobile communication network. The communication method of the first mobile communication network (for example, 4G) may be different from the communication method of the second mobile communication network (for example, 5G).

The network 20 includes the Internet. The network 20 may include a VPN (Virtual Private Network). Although not particularly limited, the network 20 may include a first mobile communication network and may include a second mobile communication network.

The providing server 30 is a server that manages first subscriber information used for connection to the first mobile communication network and provides the first subscriber information. The provision server 30 may be referred to as an SM-DP (Subscription Manager Data Preparation) server. The provision server 30 may include a server (for example, an SM-SRSubscription Manager Data Routing) server that establishes a secure route in the first mobile communication network. In the embodiment, the provision server 30 is an example of a network device.

The management server 40 manages customer information regarding users who use the first mobile communication network. The customer information may include a carrier account managed by a communication carrier of the first mobile communication network. For example, the management server 40 accepts an application to use the first subscriber information in the UE 200B.

(2) Functional block configuration of wireless communication system The functional block configuration of the wireless communication system 10 will be described below.

First, the functional block configuration of the UE 200 will be explained.

As shown in FIG. 2, the UE 200 includes a communication unit 210, a SIM (Subscriber Identity Module) 220, an interface 230, and a control unit 240.

The communication unit 210 communicates with the provision server 30 and the management server 40 via the network 20.

When the UE 200 is the UE 200B, the communication unit 210 may have the configuration shown below. Specifically, the communication unit 210 constitutes a transmitting unit that transmits to the providing server 30 an opening request requesting opening to the first mobile communication network. The communication unit 210 constitutes a receiving unit that receives an opening response indicating completion of opening to the first mobile communication network from the management server 40 in response to the opening request. Note that the communication unit 210 may have a function of communicating with the first mobile communication network after the first subscriber information is stored.

Here, as described later, the opening response is accepted on the condition that the UE 200A performs a specific operation that stores the second subscriber information used for connection to a second mobile communication network different from the first mobile communication network. It will be done. The specific operation may include an operation of inputting knowledge information to be notified to the providing server 30. The specific operation may include an operation to delete the second subscriber information.

If the UE 200 is the UE 200A, the communication unit 210 may have the configuration shown below. Specifically, the communication unit 210 may notify the management server 40 of knowledge information when an operation of inputting knowledge information is performed as a specific operation. The communication unit 210 may notify the management server 40 that the second subscriber information has been deleted when the specific operation is to delete the second subscriber information. Note that the communication unit 210 may have a function of communicating with the second mobile communication network when the second subscriber information is stored.

The SIM 220 is a module configured to store subscriber information. The subscriber information may include IMSI (International Mobile Subscriber Identity) necessary for communicating with a mobile communication network.

If the UE 200 is the UE 200B, the SIM 220 may have the configuration shown below. The SIM 220 constitutes a storage unit configured to be able to write first subscriber information used for connection to the first mobile communication network. The SIM220 is configured by a SIM card, and may include a UICC (Universal Integrated Circuit Card) as a hardware configuration, and an eSIM (Embedded SIM) as a software configuration. The first subscriber information is provided by the providing server 30 and stored in the SIM 220.

If the UE 200 is the UE 200A, the SIM 220 may have the configuration shown below. SIM 220 stores second subscriber information used for connection to a second mobile communication network. The SIM 220 may be a SIM card that includes an eSIM in which the second subscriber information can be rewritten, or may be a SIM card that stores the second subscriber information in a manner that cannot be rewritten.

The interface 230 includes an input interface such as a touch panel.

If the UE 200 is the UE 200A, the interface 230 may have the configuration shown below. Interface 230 may be used for specific operations. For example, when an operation of inputting knowledge information is performed as a specific operation, the interface 230 may be used to input the knowledge information. When the specific operation is to delete the second subscriber information, the interface 230 may be used to delete the second subscriber information.

The control unit 240 controls the UE 200. Although not particularly limited, the control unit 240 may execute transmission control of various types of information based on operations using the interface 230, and may control transmission of various types of information based on information received from the providing server 30 or the management server 40. Display control may be performed.

Second, the functional block configuration of the providing server 30 will be explained.

As shown in FIG. 3, the provision server 30 includes a communication section 31, a management section 32, and a control section 33.

The communication unit 31 communicates with the management server 40 and the UE 200 via the network 20. In the embodiment, the communication unit 31 constitutes a receiving unit that receives from the UE 200B an opening request for requesting opening to the first mobile communication network. The communication unit 31 constitutes a transmitting unit that transmits an opening response indicating completion of opening to the first mobile communication network to the UE 200B in response to the opening request.

The management unit 32 manages first subscriber information used for connection to the first mobile communication network. For example, the first subscriber information includes an IMSI used for connection to the first mobile communication network.

The control unit 33 controls the provision server 30. In the embodiment, the control unit 33 issues an opening request on the condition that the UE 200A performs a specific operation that stores second subscriber information used for connection to a second mobile communication network different from the first mobile communication network. Configure the control unit that accepts the data.

As described above, the specific operation may include an operation of inputting knowledge information to be notified to the providing server 30. The specific operation may include an operation to delete the second subscriber information.

(3) Wireless communication method The wireless communication method will be explained below. Two operation examples will be described below depending on the type of specific operation.

(3.1) Operation example 1
Operation example 1 is an operation example regarding a case where the specific operation is an operation of inputting knowledge information to be notified to the providing server 30. Here, an application terminal 300 is illustrated as a terminal that executes an application regarding the use of first subscriber information. Application terminal 300 may be a terminal different from UE 200, or may be UE 200.

As shown in FIG. 4, in step S11, the application terminal 300 transmits an application regarding the use of the first subscriber information to the management server 40. The application may be performed using a carrier account managed by the communications carrier of the first mobile communications network. For example, in the application, knowledge authentication (for example, password authentication) using a carrier account may be performed. The application may include first identification information that identifies UE 200B. The first identification information may be an EID (Embedded Identity Document) that identifies the eSIM. The application may include second identification information that identifies UE 200A. When UE 200A has an eSIM, the second identification information may be an EID that identifies the eSIM. Note that if the second identification information is managed by the management server 40, the application does not need to include the second identification information.

In step S12, the management server 40 transmits to the provision server 30 a request for opening the first mobile communication network regarding the UE 200B. The opening request may include second identification information in order to stop the connection of UE 200A to the second mobile communication network. The opening request may include knowledge information used for authentication of UE 200A. The knowledge information may be any information generated by the management server 40, and may be expressed by a combination of numbers, letters, symbols, etc. As described later, the knowledge information is used for authentication of UE 200B.

In step S21, the provision server 30 prepares to open the first mobile communication network for the UE 200B. That is, the provision server 30 stops the connection of the UE 200A to the second mobile communication network. The provision server 30 transmits a preparation completion message to the management server 40 indicating that the preparation has been completed.

In step S22, the management server 40 transmits an access request to the provision server 30 to the UE 200A. The access request may include a link for accessing the management server 40. The access request may include knowledge information. The knowledge information is the knowledge information notified to the providing server 30 in step S12.

It should be noted that the second mobile communication network cannot be used to access the provision server. The access request may be notified by SMS (Short Message Service) or by a push notification to an application installed in the UE 200A.

In step S23, the UE 200A accesses the provision server 30 based on the access request. Access may be performed via network 20 (eg, the Internet).

In step S24, the provision server 30 transmits a knowledge information input request to the UE 200A.

In step S25, the UE 200A transmits the knowledge information to the provision server 30 as an input response to the input request. The knowledge information is the knowledge information notified to the UE 200A in step S22. That is, step S25 corresponds to a specific operation of the UE 200A to input knowledge information to be notified to the providing server 30.

In step S26, the provision server 30 authenticates the UE 200A. Specifically, the providing server 30 determines whether the knowledge information notified in step S25 matches the knowledge information notified in step S12. Here, the explanation will be continued after the knowledge information matches.

In step S27, the provision server 30 transmits a procedure start notification to the UE 200A instructing the start of the procedure for opening the first mobile communication network for the UE 200B. The procedure start notification may be considered to be a message requesting operation of the UE 200A.

In step S31, the UE 200B transmits an opening request to the provision server 30 requesting opening to the first mobile communication network. The opening request may include first identification information (for example, EID) that identifies UE 200B.

In step S32, the provision server 30 transmits a knowledge information input request to the UE 200B.

In step S33, the UE 200B transmits the knowledge information to the provision server 30 as an input response to the input request. The knowledge information is the knowledge information notified to the UE 200A in step S22.

In step S34, the provision server 30 authenticates the UE 200B. Specifically, the providing server 30 determines whether the knowledge information notified in step S33 matches the knowledge information notified in step S12. Here, the explanation will be continued after the knowledge information matches.

In step S35, the provision server 30 transmits to the UE 200B, as an opening response to the opening request, a notification that the opening to the first mobile communication network has been completed.

Although not particularly limited, if a certain period of time has passed since step S22 (access request) was executed, acceptance of step S23 (access) may be refused. Furthermore, if a certain period of time has elapsed since step S27 (procedure start notification) was executed, acceptance of step S31 (opening request) may be refused.

(3.2) Operation example 2
Operation example 2 is an operation example related to a case where the specific operation is an operation to delete the second subscriber information. Here, an application terminal 300 is illustrated as a terminal that executes an application regarding the use of first subscriber information. Application terminal 300 may be a terminal different from UE 200, or may be UE 200.

As shown in FIG. 5, in step S41, the application terminal 300 transmits an application regarding the use of the first subscriber information to the management server 40. The application may be performed using a carrier account managed by the communications carrier of the first mobile communications network. For example, in the application, knowledge authentication (for example, password authentication) using a carrier account may be performed. The application may include first identification information that identifies UE 200B. The first identification information may be an EID that identifies the eSIM. The application may include second identification information that identifies UE 200A. When UE 200A has an eSIM, the second identification information may be an EID that identifies the eSIM. Note that if the second identification information is managed by the management server 40, the application does not need to include the second identification information.

In step S42, the management server 40 transmits to the provision server 30 a request for opening the first mobile communication network regarding the UE 200B. The opening request may include second identification information in order to stop the connection of UE 200A to the second mobile communication network.

In step S43, the provision server 30 reserves access to the first mobile communication network for the UE 200B. The reservation may be considered to be in a state where it awaits deletion of the second subscriber information.

In step S51, the provision server 30 transmits to the management server 40 that the reservation for opening the first mobile communication network regarding the UE 200B has been completed, as a reservation completion.

In step S52, the management server 40 transmits a deletion request to the UE 200A requesting deletion of the second subscriber information.

In step S53, the UE 200A deletes the second subscriber information. That is, step S25 corresponds to a specific operation of the UE 200A to delete the second subscriber information.

In step S54, the UE 200A transmits to the management server 40 that the second subscriber information has been deleted as a deletion response to the deletion request.

In step S55, the management server 40 sends a notification that the second subscriber information has been deleted to the provision server 30 as a completion response to the reservation completion.

In step S56, the provision server 30 prepares to open the first mobile communication network for the UE 200B. That is, the provision server 30 stops the connection of the UE 200A to the second mobile communication network.

In step S57, the provision server 30 transmits a preparation completion message to the management server 40 indicating that preparations for opening the first mobile communication network regarding the UE 200B are completed.

In step S58, the management server 40 transmits a procedure start notification to the UE 200A instructing the start of the procedure for opening the first mobile communication network for the UE 200B. The procedure start notification may be considered to be a message requesting operation of the UE 200A.

In step S61, the UE 200B transmits an opening request to the provision server 30 requesting opening to the first mobile communication network. The opening request may include first identification information (for example, EID) that identifies UE 200B.

In step S62, the provision server 30 transmits to the UE 200B, as an opening response to the opening request, a notification that the opening to the first mobile communication network has been completed.

Although not particularly limited, if a certain period of time has elapsed since step S51 (reservation completion) was executed, acceptance of step S55 (completion response) may be refused. Furthermore, if a certain period of time has elapsed since step S57 (preparation completed) was executed, acceptance of step S61 (opening request) may be refused.

(4) Actions and Effects In the embodiment, the access request by the UE 200B for requesting access to the first mobile communication network is transmitted to the second mobile communication network used for connection to the second mobile communication network different from the first mobile communication network. It is accepted on condition that the UE 200A that stores subscriber information performs a specific operation. With this configuration, specific operations on the UE200A (old terminal) are required, so consider the possibility that account information related to carrier accounts may be illegally obtained by an attacker through illicit means such as phishing or malware. Even if this happens, it is possible to appropriately prevent the line from being hijacked by an attacker who does not own the UE200A (old terminal). That is, it is possible to appropriately execute the procedure for opening a mobile communication network regarding the UE 200B (new terminal) equipped with an eSIM.

(5) Other Embodiments Although the content of the present invention has been explained above in accordance with the embodiments, it is understood that the present invention is not limited to these descriptions and that various modifications and improvements are possible. It is self-evident to business operators.

In the above disclosure, the case where UE 200A (old terminal) and UE 200B (new terminal) are different terminals is illustrated. However, the above disclosure is not limited thereto. The old terminal and the new terminal may be distinguished by subscriber information (IMSI), and may be physically the same terminal.

In the above disclosure, a SIM card including an eSIM is exemplified as the SIM 220 in which subscriber information can be rewritten. However, the above disclosure is not limited thereto. The SIM 220 is made of a semiconductor or the like, and may be built into the UE 200. Such a SIM 220 may be referred to as an iSIM (integrated SIM).

The block diagrams (FIGS. 2 and 3) used to explain the embodiments described above show blocks in functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices. The functional block may be realized by combining software with the one device or the plurality of devices.

Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, These include, but are not limited to, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning. I can't do it. For example, a functional block (configuration unit) that performs transmission is called a transmitting unit or a transmitter. In either case, as described above, the implementation method is not particularly limited.

Further, the provision server 30 and the UE 200 (the device) described above may function as a computer that processes the wireless communication method of the present disclosure. FIG. 6 is a diagram showing an example of the hardware configuration of the device. As shown in FIG. 6, the device may be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

Note that in the following description, the word "apparatus" can be read as a circuit, a device, a unit, etc. The hardware configuration of the device may include one or more of the devices shown in the figure, or may not include some of the devices.

Each functional block of the device (see FIG. 2 or 3) is realized by any hardware element of the computer device or a combination of the hardware elements.

In addition, each function in the device is performed by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, so that the processor 1001 performs calculations, controls communication by the communication device 1004, and controls the memory This is realized by controlling at least one of data reading and writing in the storage 1002 and the storage 1003.

The processor 1001, for example, operates an operating system to control the entire computer. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, and the like.

Furthermore, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. Furthermore, the various processes described above may be executed by one processor 1001, or may be executed by two or more processors 1001 simultaneously or sequentially. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunications line.

The memory 1002 is a computer-readable recording medium, and includes at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. may be done. Memory 1002 may be called a register, cache, main memory, or the like. The memory 1002 can store programs (program codes), software modules, etc. that can execute a method according to an embodiment of the present disclosure.

The storage 1003 is a computer-readable recording medium, such as an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (such as a compact disk, a digital versatile disk, or a Blu-ray disk). (registered trademark disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, etc. Storage 1003 may also be called auxiliary storage. The above-mentioned recording medium may be, for example, a database including at least one of memory 1002 and storage 1003, a server, or other suitable medium.

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, network controller, network card, communication module, etc.

The communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be composed of.

The input device 1005 is an input device (eg, 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 performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

Further, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses for each device.

Furthermore, the device includes hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). A part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.

Furthermore, the notification of information is not limited to the aspects/embodiments described in this disclosure, and may be performed using other methods. For example, information notification can be performed using physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or a combination thereof. RRC signaling may also be referred to as RRC messages, such as RRC Connection Setup ) message, RRC Connection Reconfiguration message, etc.

Each aspect/embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system ( 5G), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)) , IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), and other appropriate systems and next-generation systems enhanced based on these. may be applied to. Furthermore, a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G) may be applied.

The order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.

In some cases, the specific operations performed by the base station in this disclosure may be performed by its upper node. In a network consisting of one or more network nodes including a base station, various operations performed for communication with a terminal are performed by the base station and other network nodes other than the base station (e.g., MME or It is clear that this could be done by at least one of the following: S-GW, etc.). In the above example, there is one network node other than the base station, but it may be a combination of multiple other network nodes (for example, MME and S-GW).

Information, signals (information, etc.) can be output from an upper layer (or lower layer) to a lower layer (or upper layer). It may be input/output via multiple network nodes.

The input/output information may be stored in a specific location (for example, memory) or may be managed using a management table. Information that is input and output can be overwritten, updated, or added. The output information may be deleted. The input information may be sent to other devices.

Judgment may be made using a value expressed by 1 bit (0 or 1), a truth value (Boolean: true or false), or a comparison of numerical values (for example, a predetermined value). (comparison with a value).

Each aspect/embodiment described in this disclosure may be used alone, in combination, or may be switched and used in accordance with execution. In addition, notification of prescribed information (for example, notification of "X") is not limited to being done explicitly, but may also be done implicitly (for example, not notifying the prescribed information). Good too.

Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.

Additionally, software, instructions, information, etc. may be sent and received via a transmission medium. For example, if the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) to When transmitted from a server or other remote source, these wired and/or wireless technologies are included within the definition of transmission medium.

The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of

Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and the symbol may be a signal. Also, the signal may be a message. Further, a component carrier (CC) may also be called a carrier frequency, cell, frequency carrier, etc.

As used in this disclosure, the terms "system" and "network" are used interchangeably.

In addition, the information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values from a predetermined value, or using other corresponding information. may be expressed. For example, radio resources may be indicated by an index.

The names used for the parameters mentioned above are not restrictive in any respect. Furthermore, the mathematical formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. Since the various channels (e.g. PUCCH, PDCCH, etc.) and information elements can be identified by any suitable designation, the various names assigned to these various channels and information elements are in no way exclusive designations. isn't it.

In this disclosure, "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", " "access point", "transmission point", "reception point", "transmission/reception point", "cell", "sector", "cell group", " The terms "carrier", "component carrier", etc. may be used interchangeably. A base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (eg, three) cells (also called sectors). If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is divided into multiple subsystems (e.g., small indoor base stations (Remote Radio Communication services can also be provided by Head: RRH).

The term "cell" or "sector" refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.

In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably. .

A mobile station is defined by a person 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 referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

At least one of a base station and a mobile station may be called a transmitting device, a receiving device, a communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, or the like. The moving object may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving object (for example, a drone, a self-driving car, etc.), or a robot (manned or unmanned). ). Note that at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

Additionally, the base station in the present disclosure may be read as a mobile station (user terminal, hereinafter the same). For example, communication between a base station and a mobile station is replaced with communication between multiple mobile stations (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). Regarding the configuration, each aspect/embodiment of the present disclosure may be applied. In this case, the mobile station may have the functions that the base station has. Further, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be replaced with side channels.

Similarly, the mobile station in the present disclosure may be read as a base station. In this case, the base station may have the functions that the mobile station has.

A radio frame may be composed of one or more frames in the time domain. Each frame or frames in the time domain may be called a subframe.

A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.

The numerology may be a communication parameter applied to the transmission and/or reception of a certain 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, radio frame configuration, transmission and reception. It may also indicate at least one of a specific filtering process performed by the device in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.

A slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. A slot may be a unit of time based on numerology.

A slot may include multiple mini-slots. Each minislot may be composed of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot. PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.

Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol.

For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, and one slot or minislot may be called a TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be. Note that the unit representing TTI may be called a slot, minislot, etc. instead of a subframe.

Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis. Note that the definition of TTI is not limited to this.

The TTI may be a unit of transmission time such as a channel-coded data packet (transport block), a code block, or a codeword, or may be a unit of processing such as scheduling or link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.

Note that when one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum time unit for scheduling. Further, the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.

A TTI with a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc. A TTI that is shorter than the normal TTI may be referred to as a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

Note that long TTI (e.g., normal TTI, subframe, etc.) may be read as TTI with a time length exceeding 1ms, and short TTI (e.g., shortened TTI, etc.) may be interpreted as TTI with a time length of less than the long TTI and 1ms. It may also be read as a TTI having a TTI length of the above length.

A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more continuous subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of the new merology, and may be 12, for example. The number of subcarriers included in an RB may be determined based on newerology.

Additionally, the time domain of an RB may include one or more symbols and may be one slot, one minislot, one subframe, or one TTI in length. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

Note that one or more RBs can be classified into physical resource blocks (Physical RBs: PRBs), sub-carrier groups (SCGs), resource element groups (Resource Element Groups: REGs), PRB pairs, RB pairs, etc. May be called.

Additionally, a resource block may be composed of one or more resource elements (RE). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

Bandwidth Part (BWP) (also called partial bandwidth, etc.) refers to a subset of contiguous common resource blocks for a certain numerology in a certain carrier. good. Here, the common RB may be specified by an RB index based on a 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). One or more BWPs may be configured within one carrier for the UE.

At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be replaced with "BWP".

The structures of radio frames, subframes, slots, minislots, symbols, etc. described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of symbols included in an RB, The number of subcarriers, the number of symbols within a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.

The terms "connected", "coupled", or any variations thereof, refer to any connection or coupling, direct or indirect, between two or more elements and to each other. It can include the presence of one or more intermediate elements between two elements that are "connected" or "coupled." The bonds or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be replaced with "access." As used in this disclosure, two elements may include one or more wires, cables, and/or printed electrical connections, as well as in the radio frequency domain, as some non-limiting and non-inclusive examples. , electromagnetic energy having wavelengths in the microwave and optical (both visible and non-visible) ranges.

The reference signal can also be abbreviated as Reference Signal (RS), and may be called a pilot depending on the applied standard.

As used in this disclosure, the phrase "based on" does not mean "based solely on" unless explicitly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

"Means" in the configurations of each of the above devices may be replaced with "unit", "circuit", "device", etc.

As used in this disclosure, any reference to elements using the designations "first," "second," etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed therein or that the first element must precede the second element in any way.

Where "include", "including" and variations thereof are used in this disclosure, these terms, like the term "comprising," are inclusive. It is intended that Furthermore, the term "or" as used in this disclosure is not intended to be exclusive or.

In the present disclosure, when articles are added by translation, such as a, an, and the in English, the present disclosure may include that the nouns following these articles are plural.

As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of operations. "Judgment" and "decision" include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, search, and inquiry. (e.g., searching in a table, database, or other data structure), and regarding an ascertaining as a "judgment" or "decision." In addition, "judgment" and "decision" refer to receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and access. (accessing) (e.g., accessing data in memory) may include considering something as a "judgment" or "decision." In addition, "judgment" and "decision" refer to resolving, selecting, choosing, establishing, comparing, etc. as "judgment" and "decision". may be included. In other words, "judgment" and "decision" may include regarding some action as having been "judged" or "determined." Further, "judgment (decision)" may be read as "assuming", "expecting", "considering", etc.

In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean that "A and B are each different from C". Terms such as "separate" and "coupled" may also be interpreted similarly to "different."

FIG. 7 shows an example of the configuration of the vehicle 2001. As shown in FIG. 7, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, an axle 2009, an electronic control unit 2010, Equipped with various sensors 2021 to 2029, an information service section 2012, and a communication module 2013.

The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor.

The steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

The electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

Signals from various sensors 2021 to 2028 include current signals from current sensor 2021 that senses motor current, front and rear wheel rotation speed signals obtained by rotation speed sensor 2022, and front wheel rotation speed signals obtained by air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal acquired by vehicle speed sensor 2024, acceleration signal acquired by acceleration sensor 2025, accelerator pedal depression amount signal acquired by accelerator pedal sensor 2029, and brake pedal sensor 2026. These include a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028.

The Information Services Department 2012 provides various devices such as car navigation systems, audio systems, speakers, televisions, and radios that provide various information such as driving information, traffic information, and entertainment information, as well as one or more devices that control these devices. It consists of an ECU. The information service unit 2012 provides various multimedia information and multimedia services to the occupants of the vehicle 1 using information acquired from an external device via the communication module 2013 and the like.

The driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g. GNSS, etc.), map information (e.g. high definition (HD) maps, autonomous vehicle (AV) maps, etc.) ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors that prevent accidents and reduce the driver's driving burden. It consists of various devices that provide functions for the purpose and one or more ECUs that control these devices. Further, the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.

The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 1 via the communication port. For example, the communication module 2013 communicates with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, which are included in the vehicle 2001, through the communication port 2033. Data is transmitted and received between the axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and the sensors 2021 to 2028.

The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, various information is transmitted and received with an external device via wireless communication. Communication module 2013 may be located either inside or outside electronic control unit 2010. The external device may be, for example, a base station, a mobile station, or the like.

The communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to an external device via wireless communication. In addition, the communication module 2013 also receives the front wheel and rear wheel rotational speed signals acquired by the rotational speed sensor 2022, the front wheel and rear wheel air pressure signals acquired by the air pressure sensor 2023, and the vehicle speed sensor, which are input to the electronic control unit 2010. A vehicle speed signal obtained by the acceleration sensor 2024, an acceleration signal obtained by the acceleration sensor 2025, an accelerator pedal depression amount signal obtained by the accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by the brake pedal sensor 2026, and a shift lever. The shift lever operation signal acquired by the sensor 2027, the detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028 are also transmitted to the external device via wireless communication.

The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices, and displays it on the information service section 2012 provided in the vehicle. Communication module 2013 also stores various information received from external devices into memory 2032 that can be used by microprocessor 2031. Based on the information stored in the memory 2032, the microprocessor 2031 controls the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, and left and right rear wheels provided in the vehicle 2001. 2008, axle 2009, sensors 2021 to 2028, etc. may be controlled.

Although the present disclosure has been described in detail above, it is clear for those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as determined by the claims. Therefore, the description of the present disclosure is for the purpose of illustrative explanation and is not intended to have any limiting meaning on the present disclosure.

10 Wireless communication system 20 Network 30 Providing server 31 Communication section 32 Management section 33 Control section 40 Management server 200 UE
210 Communication Department 220 SIM
230 Interface 240 Control unit 300 Application terminal 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Left and right front wheels 2008 Left and right rear wheels Wheels 2009 Axles 2010 Electronic control section 2012 Information service section 2013 Communication module 2021 Current sensor 2022 Rotational speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 driving assistance system Part 2031 Microprocessor 2032 Memory (ROM, RAM)
2033 communication port

Claims

a storage unit configured to be able to write first subscriber information used for connection to a first mobile communication network;
a transmitting unit that transmits an opening request to a network device requesting opening to the first mobile communication network;
a receiving unit that receives, from the network device, an opening response indicating completion of opening to the first mobile communication network in response to the opening request;
The terminal wherein the opening request is accepted on the condition that the terminal performs a specific operation that stores second subscriber information used for connection to a second mobile communication network different from the first mobile communication network.
The terminal according to claim 1, wherein the specific operation includes an operation of inputting knowledge information to be notified to the network device.
The terminal according to claim 1, wherein the specific operation includes an operation to delete the second subscriber information.
Receive a connection opening request for requesting connection to the first mobile communication network from a first terminal having a storage unit configured to be able to write first subscriber information used for connection to the first mobile communication network. a receiving section;
a transmission unit that transmits an opening response indicating completion of opening to the first mobile communication network to the first terminal in response to the opening request;
a control unit that accepts the opening request on the condition that a specific operation of a second terminal storing second subscriber information used for connection to a second mobile communication network different from the first mobile communication network is performed; A network device comprising:
comprising a first terminal and a network device;
The first terminal is
a storage unit configured to be able to write first subscriber information used for connection to a first mobile communication network;
a transmitting unit that transmits an opening request to the network device requesting opening to the first mobile communication network;
a receiving unit that receives, from the network device, an opening response indicating completion of opening to the first mobile communication network in response to the opening request;
The network device includes:
comprising a control unit that accepts the opening request on condition that a specific operation of a second terminal storing second subscriber information used for connection to a second mobile communication network different from the first mobile communication network is performed; , wireless communication systems.
A first terminal having a storage section configured to be able to write first subscriber information used for connection to a first mobile communication network sends an opening request to the first mobile communication network to a network device. Step A to send to
a step B in which the first terminal receives an opening response from the network device indicating completion of opening to the first mobile communication network in response to the opening request;
The wireless communication method is characterized in that the opening request is accepted on the condition that a specific operation is performed on a terminal storing second subscriber information used for connection to a second mobile communication network different from the first mobile communication network.