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    • 专利摘要:
    The invention relates to a cellular radio communication device (130) for wireless communication via a cellular radio network (110), the cellular radio network (110) having a network identification (111) with the following features: a cellular radio communication interface (140) for communication with the cellular radio network ( 110), a data memory (180) and a monitoring device (170). The communication interface (140) comprises a first integrated subscriber identity module and a second integrated subscriber identity module designed as a redundancy module, which is provided to replace the first integrated subscriber identity module in the event of a fault in the first integrated subscriber identity module. The invention also relates to a method for wireless communication of a mobile radio communication device (130) via a mobile radio network (110).
    公开号:CH716450B1
    申请号:CH00750/20
    申请日:2020-06-22
    公开日:2021-05-31
    发明作者:Sun Huiyun
    申请人:Shanghai Inhub Tech Co Ltd；
    IPC主号:
    专利说明:

    The present invention relates to a cellular communication device with two integrated subscriber identity modules for redundant cellular communication and a method for redundant cellular communication by means of two integrated subscriber identity modules.
    Cellular communication devices with one or more SIM cards are increasingly being used in the loT (Internet of Things) area to network machines. Such devices make it possible to network not only machines, but also physical and virtual objects in general, and to let them work together through communication. Functions implemented with technologies of the “Internet of Things” allow interaction between humans and any electronic systems networked via this, as well as between the systems themselves. The aim of the Internet of Things is to automatically capture relevant information from the real world, link it with one another and make it available in the network. For this purpose, communication networks based on the 5G system architecture are increasingly being used, as outlined, for example, in the 3GPP TS 23.501 specification.
    In the field of industrial automation and loT communication, failure safety is increasingly becoming a basic requirement. In the case of critical controls, the power supply is designed redundantly so that operation is guaranteed even if one power supply unit fails. With loT communication, in addition to the power supply, data transmission via the communication interface can also fail. Particularly in the field of factory automation and self-controlling systems, such as self-driving vehicles, there is a need for secure communication in order to prevent possible damage.
    It is the object of the present invention to create a concept for a fail-safe mobile radio communication, which in the communication of human-to-human, human-to-machine and / or machine-to-machine communication with less Failure rate guaranteed.
    In particular, it is the object of the present invention to provide a mobile radio communication device that ensures fail-safe mobile radio communication via mobile radio networks.
    This object is achieved by the features of the independent claims. Advantageous forms of further training are the subject of the dependent claims.
    The mobile radio communication devices and communication systems presented below can be of various types. The individual elements described can be implemented using software or hardware components and can be produced using various technologies. The individual components can include, for example, microprocessors, semiconductor chips, ASICs, signal processors, electro-optical circuits, integrated electrical circuits and / or passive components.
    The mobile radio communication devices and mobile radio networks presented below can comprise various technologies and network standards, for example in accordance with the 5G system architecture. The 5G system architecture includes the concept of network slicing, i.e. the division of the communication network into individual pieces or slices or sub-networks. Network slicing is a form of virtual network architecture in which network architectures are partitioned into virtual elements that can be linked to one another (also via software). The concept of network slicing allows multiple virtual networks to be created on a common physical infrastructure. The virtual networks can then be adapted to the specific requirements of applications, services, devices, customers or operators. Each virtual network (network slice) comprises an independent set of logical network functions that support the requirements of the respective application.
    Each of these virtual networks or network slices provides resources and network topology for a specific service and traffic that uses the corresponding segment. Functions such as speed, capacity, connectivity and coverage can be assigned to meet the specific requirements of each application, but functional components can also be shared across different network slices. In addition, each network slice can be given management capabilities that can be controlled by the network operator or user depending on the application. The network slices can be managed and orchestrated independently.
    The cellular networks described below can be based on 5G networks in accordance with the 5G system architecture. The service-oriented 5G network supports very different services with very different performance requirements. For example, 5G supports the three different service categories Enhanced Mobile Broadband (eMBB), massive machine type communication (mMTC, also known as loT, i.e. Internet of Things) and ultra-reliable communication with low latency (UR-LLC).
    The mobile radio communication devices described below comprise a mobile radio communication interface or simply referred to as a communication interface, which performs a variety of tasks. Such a communication interface can include, for example, a processor that is responsible for carrying out the tasks described. The term “processor” refers to any device that can be used to process certain tasks (or blocks or steps). A processor may be a single processor or a multi-core processor, or may include a set of processors, or may include means for processing. A processor can handle software or firmware or applications and so on.
    The invention relates to a cellular communication device for wireless communication via a cellular network, the cellular network having a network identification, with the following features: a cellular communication interface for communication with the cellular network, the communication interface being a first integrated subscriber identity module, iSIM ( Integrated Subscriber Identity) and a second integrated subscriber identity module, wherein the first integrated subscriber identity module is implemented as an embedded integrated circuit and permanently stores a cellular subscriber identifier together with the network identification and a network address of the cellular network, the second integrated subscriber. Identity module is implemented as an embedded integrated circuit and the mobile radio subscriber identifier together with the network identification and the network address of the mobile radio network rks permanently stores, the mobile subscriber identifier identifying the first integrated subscriber identity module and the second integrated subscriber identity module in the mobile network, the second integrated subscriber identity module being designed and provided as a redundancy module, the first integrated subscriber identity module in the case of a To replace failure of the first integrated subscriber identity module; a monitoring device which is designed to monitor an operating voltage applied to the first integrated subscriber identity module, to detect a fault in the first integrated subscriber identity module when the operating voltage changes by a predetermined threshold value and to output an interference signal, and wherein the monitoring device is designed to output an operating signal if a change in the operating voltage is less than the predetermined threshold value; and a data memory which is set up to store data; The communication interface is designed, when the operating signal is present, to read out the mobile radio subscriber identification, the network identification and the network address of the mobile radio network from the first integrated subscriber identity module, and the mobile radio subscriber identification together with the network identification, the network address of the mobile radio network and the data to the Send out the network address of the cellular network; and wherein the communication interface is designed in the presence of the interference signal to permanently deactivate the first integrated subscriber identity module, to activate the second integrated subscriber identity module; read out the mobile radio subscriber identifier, the network identification and the network address of the mobile radio network from the second integrated subscriber identity module and send the mobile radio subscriber identifier together with the network identification, the network address of the mobile radio network and the data to the network address of the mobile radio network.
    Such a mobile radio communication device ensures particularly secure communication due to the redundant design of the two iSIM modules. The cellular communication device enables fail-safe cellular communication and guarantees a low failure rate due to the redundancy of the two iSIM modules when communicating from person-to-person, person-to-machine and / or machine-to-machine. In particular, the mobile radio communication device ensures fail-safe mobile radio communication via mobile radio networks and network technologies, in particular via network slices of the 5G system architecture.In an exemplary embodiment of the mobile radio communication device, the mobile radio communication interface has a voltage supply connection to which the operating voltage is applied, the first integrated subscriber identity module being connected to the voltage supply connection via a destructible fuse, and the communication interface being designed as the destructible fuse to destroy in order to permanently deactivate the first integrated subscriber identity module by disconnecting it from the operating voltage.
    These security measures ensure that when a fault is detected, the disturbed subscriber identity module can no longer be used, but that communication can continue via the undisturbed subscriber identity module. This allows the error rate to be reliably limited.
    According to an expedient development, the destructible fuse is a thermal fuse, the mobile radio communication interface being designed to send an electric current through the destructible fuse in order to thermally destroy the destructible fuse.
    This has the technical advantage that the mobile radio communication device can fix the malfunction by itself when a malfunction is detected by thermally destroying the thermal fuse with an electric current. The reaction to the malfunction can thus take place much more quickly, so that the error status can be rectified within a very short time.
    The mobile radio communication interface is expediently designed to connect the second integrated subscriber identity module to the power supply connection in order to activate the second integrated subscriber identity module.
    This has the technical advantage that the mobile radio communication device can be brought into redundancy mode by simply switching over when a fault is detected. Switching to redundancy mode takes place via the mobile radio communication interface and can thus be carried out automatically by the mobile radio communication device or depending on the initiation of network-based security measures which are received via the mobile radio communication interface.
    According to an expedient development, the mobile radio communication interface has an operating voltage source, in particular a battery, for providing the operating voltage at the voltage supply connection.
    This has the technical advantage that the mobile radio communication device does not require an external power supply in order to initiate the switchover to redundancy mode. The mobile radio communication device can thus automatically initiate redundancy operation.
    The mobile radio communication interface expediently has a switch which is designed to connect either the first integrated subscriber identity module or the second integrated subscriber identity module to the power supply connection, the second integrated subscriber identity module when the operating signal is present from the power supply connection is separated.
    This achieves the technical advantage that the switch ensures that only one subscriber identity module can be active at a time. This increases the security of communication and there can be no mistaken operation of two iSIMs at the same time.
    According to an expedient development, the mobile radio communication device comprises a sensor which is designed to detect a value of a physical variable and to store the value as the data in the data memory.
    This offers the technical advantage that the mobile radio communication device can store sensor data and transmit it to the mobile radio network. The mobile radio communication device can thus be implemented as a loT device, for example, which records sensor data and makes it available to the network.In an exemplary embodiment of the mobile radio communication device, the communication interface is designed to delete the data in the data memory after the data have been read out.
    This offers the technical advantage that the recording time for the sensor data increases if the memory is deleted again after each transmission, so that no unnecessary data that has already been transmitted is stored in the data memory.
    According to an expedient development, the cellular network is a subnetwork of a 5G cellular network, the cellular communication device being a loT communication device, the cellular subscriber identifier being stored in cryptographically encrypted form in the first integrated subscriber identity module using a first public cryptographic key is, and wherein the mobile subscriber identification is stored in the second integrated subscriber identity module cryptographically encrypted using a second public cryptographic key, wherein the first public cryptographic key and the second public cryptographic key are assigned to the cellular network.
    This offers the technical advantage that the two integrated subscriber identity modules or iSIM modules can be used in 5G communication networks, in particular network slices, in order to transmit data with low susceptibility to errors due to the redundancy measures. The advantages of the 5G system architecture can thus be exploited, i.e. the virtual network architecture on a common physical infrastructure, the specific adaptation to the requirements of applications, services, devices, customers or operators, the support of logical network functions, the application-specific assignment of functions such as speed , Capacity, connectivity and network coverage to meet the special requirements of each application, the shared use of functional components across different network slices, etc. Due to the redundant implementation of the two iSIM modules, the reliability in the 5G communication network can be significantly increased .
    Furthermore, the invention relates to a method for wireless communication of a mobile radio communication device via a mobile radio network, wherein the mobile radio network has a network identification, and wherein the mobile radio communication device comprises a communication interface and a data memory which is set up to store data, wherein the communication interface has a first integrated subscriber identity module, iSIM (Integrated Subscriber Identity) and a second integrated subscriber identity module, wherein the first integrated subscriber identity module is implemented as an embedded integrated circuit and a mobile radio subscriber identification together with the network identification and a The network address of the cellular network is permanently stored, the second integrated subscriber identity module being implemented as an embedded integrated circuit and the cellular subscriber identifier together m it permanently stores the network identification and the network address of the cellular network, the cellular subscriber identifier identifying the first integrated subscriber identity module and the second integrated subscriber identity module in the cellular network, the second integrated subscriber identity module being designed and provided as a redundancy module, the first to replace the integrated subscriber identity module in the event of a fault in the first integrated subscriber identity module, the method comprising the following steps: monitoring an operating voltage applied to the first integrated subscriber identity module; Detecting a fault in the first integrated subscriber identity module when the operating voltage changes by a predetermined threshold value; Outputting an interference signal when the interference is detected; Outputting an operating signal if a change in the operating voltage is less than the predetermined threshold value; If the operating signal is present: reading out the mobile radio subscriber identification, the network identification and the network address of the mobile radio network from the first integrated subscriber identity module and sending the mobile radio subscriber identification together with the network identification, the network address of the mobile radio network and the data to the network address of the mobile radio network; and if the interference signal is present: permanent deactivation of the first integrated subscriber identity module; Activating the second integrated subscriber identity module; Reading out the mobile radio subscriber identification, the network identification and the network address of the mobile radio network from the second integrated subscriber identity module; and sending the mobile radio subscriber identifier together with the network identification, the network address of the mobile radio network and the data to the network address of the mobile radio network.
    Such a method for wireless cellular communication ensures particularly secure communication due to the redundant design of the two iSIM modules in the communication device. The method enables fail-safe cellular communication and, thanks to the redundancy of the two iSIM modules, guarantees a low failure rate for human-to-human, human-to-machine and / or machine-to-machine communication. In particular, the method ensures fail-safe cellular communication via cellular networks and network technologies, in particular via network slices of the 5G system architecture.
    Exemplary embodiments are explained with reference to the accompanying drawings. 1 shows a schematic illustration of a mobile radio communication system 100 according to an exemplary embodiment with a mobile radio communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure; 2 shows a block diagram of a communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure; 3 shows a block diagram of a cellular radio communication interface 140 of a communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure; 4 shows a schematic illustration of a mobile radio communication device 130 for redundant communication according to the disclosure in a 5G communication system 300 according to an exemplary embodiment according to the specification 3GPP TS 23.501; 5 shows a schematic illustration of a method 500 for redundant mobile radio communication by means of two integrated subscriber identity modules 150, 160 according to the disclosure.
    In the following description of the embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which specific embodiments are shown by way of illustration. It goes without saying that other embodiments can also be used and structural or logical changes can be made without deviating from the concept of the present invention. The following detailed description is therefore not to be taken in a limiting sense. Furthermore, it goes without saying that the features of the various exemplary embodiments described herein can be combined with one another, unless specifically stated otherwise.
    Network access entities, mobile radio communication devices and functions of such network access entities and mobile radio communication devices are described below. The network access entity ensures access and mobility management in the cellular network. Mobile radio communication devices can use the network access entity to register with their mobile radio subscriber identification, for example UE ID or IMSI, in the mobile radio network and receive permission to set up a communication connection. For example, the network access entity in the 5G network can be an AMF (Access and Mobility Management Function) in order to provide access and mobility management functions. The AMF manages access and mobility control and can also include network slice selection functionality. In the 4G network, the network access entity can also be an MME (mobility management entity). This provides the functions of paging for setting up calls and general communication connections as well as signaling for control purposes. The network access entity connects the core network with the access network and manages the whereabouts of all mobile radio communication devices in the radio cells connected to it.
    The network access entity also builds a security relationship with a mobile radio communication device in order to then be able to install security elements, for example keys, in the mobile radio communication device and in the network application function (NAF) of the network access function, for example via the network protocols Diameter and Hypertext Transfer Protocol (http).
    1 shows a schematic illustration of a mobile radio communication system 100 according to an exemplary embodiment with a mobile radio communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure.
    The cellular communication system 100 comprises a cellular network 110 and a cellular communication device 130 with two integrated subscriber identity modules (iSIM: Integrated Subscriber Identity) 150, 160, a cellular communication interface 140, a monitoring device 170, also referred to as a monitor, and a Data storage 180.
    The cellular radio communication device 130 can be used for wireless communication via the cellular radio network 110. For this purpose, the mobile radio network 110 has a network identification 111.
    The cellular communication interface 140 is used for communication with the cellular network 110. For this purpose, the cellular communication interface 140 has a first integrated subscriber identity module, iSIM: Integrated Subscriber Identity, 150 and a second integrated subscriber identity module 160. The first integrated subscriber identity module 150 is implemented as an embedded integrated circuit and stores a mobile radio subscriber identifier 113 permanently together with the network identification 111 and a network address 112 of the cellular network 110. The second integrated subscriber identity module 160 is implemented as an embedded integrated circuit and saves the mobile radio subscriber identifier 113 permanently together with the network identification 111 and the network address 112 of the mobile radio network 110.
    The mobile subscriber identifier 113 identifies the first integrated subscriber identity module 150 and the second integrated subscriber identity module 160 in the mobile network 110. The second integrated subscriber identity module 160 is designed as a redundancy module and is provided, the first integrated subscriber identity module To replace 150 in the event of a malfunction of the first integrated subscriber identity module 150;
    The monitoring device 170 is designed to monitor an operating voltage 190 applied to the first integrated subscriber identity module 150 and to detect a fault in the first integrated subscriber identity module 150 when the operating voltage 190 changes by a predetermined threshold value and to output an interference signal 171 . The monitoring device 170 is designed to output an operating signal 172 if a change in the operating voltage 190 is less than the predetermined threshold value.
    The data memory 180 is set up to store data 114.
    The mobile radio communication interface 140 is designed to take the following measures when the operating signal 172 is present:read out the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the first integrated subscriber identity module 150, andto send the mobile radio subscriber identifier 113 together with the network identification 111, the network address 112 of the mobile radio network 110 and the data 114 to the network address 112 of the mobile radio network 110.
    The mobile radio communication interface 140 is also designed to take the following measures when the interference signal 171 is present:permanently deactivate the first integrated subscriber identity module 150,activate the second integrated subscriber identity module 160;read out the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the second integrated subscriber identity module 160 andto send the mobile radio subscriber identifier 113 together with the network identification 111, the network address 112 of the mobile radio network 110 and the data 114 to the network address 112 of the mobile radio network 110.
    The cellular network 110 is identified by its network identification (ID1) 111 and can be addressed via its network address 112. For example, there is a network access entity in the cellular network 110 which regulates the access to the cellular network 110. The mobile radio network 110 can then be addressed or reached via the network address of this network access entity. This network access entity knows the network identification 111 of the cellular network 110 and can manage access to the cellular network 110.
    The network access entity for the cellular network 110 can for example be a RAN (Radio Access Network) entity, such as a base station or a radio access entity or an AMF (Access and Mobility Management Function) entity in the 5G network.
    The communication system 100 is shown here only as an example. It can also include further cellular networks, which can be constructed similarly to the network 110 shown here. Furthermore, networks with other radio access technologies can also be implemented in addition to or instead of the mobile radio network 110, for example WLAN or WiFi networks. Further mobile radio communication devices 130 can also reside in the communication system 100 and communicate.
    In addition to the two integrated subscriber identity modules 150, 160 shown in FIG. 1, the mobile radio communication device 130 can also comprise further such subscriber identity modules, be it that they are further redundancy modules or that they are modules for access to other mobile radio networks , for example using other network access technologies.
    The fixed storage means that the mobile radio subscriber identifier 113 together with the network identification 111 and the network address 112 of the mobile radio network 110 are stored in the first integrated subscriber identity module 150 even when the power supply is switched off. The same applies to the fixed storage of this data in the second integrated subscriber identity module 160.
    The cellular subscriber identifier 113 is, for example, an identifier of the subscriber in the cellular network 110, for example an IMSI (International Mobile Subscriber Identity, that is, a number for the unique identification of network subscribers in the cellular network 110. The cellular subscriber identifier 113 can parameters comprise to identify and authenticate the subscriber in the cellular network 110.
    The data 114 can be assigned to the first subscriber identity module 150 and the second subscriber identity module 160 provided as a redundancy module. For example, the data 114 can be data that can no longer be stored in the first subscriber identity module 150 and are therefore swapped out to the data memory 180. This can be, for example, measured values that were measured by the first subscriber identity module 150, for example recorded images or voice data, or temperature values, pressure values, level values, currents, voltage values, etc. By storing the data 114 in the data memory 180 this is not affected in the event of a fault in the first subscriber identity module 150. After switching to the second subscriber identity module 160, the data 114 can be read out from the data memory 180 as before and transmitted to the network 110.
    The mobile radio communication device 130 can furthermore comprise an actuator or an interface to an actuator, which is designed to derive a control command for controlling the actuator from the data 114 in the data memory 180 or to read it and to the actuator or the Forward interface to the actuator to move the actuator accordingly.
    The actuator can be, for example, a machine component that can be controlled by the data 114. The actuator can be, for example, a household appliance that can be controlled in the automated house or home via the data 114. Alternatively, the actuator can be, for example, a loudspeaker or a vibration device of the mobile radio communication device 130, which can be controlled and activated via the data 114.
    The cellular network 110 can be, for example, a subnetwork or slice of a 5G cellular network, as described in more detail for FIG. 4, for example.
    The mobile radio communication device 130 can comprise a sensor which is designed to detect a value of a physical variable and to store the value as the data 114 in the data memory 180. The physical variable can be, for example, a temperature value, a pressure value, a level value, a current strength, a voltage value, etc.
    The mobile radio communication interface 140 can delete the data 114 after reading out the data 114 in the data memory 180. This allows the memory 180 to be used more efficiently. Once forwarded, data can be deleted to make room for new data.
    For example, the cellular network 110 can be a subnetwork of a 5G cellular network, as described in more detail below with regard to FIG. The mobile radio communication device 130 can be a loT communication device. The mobile radio subscriber identifier 113 can, for example, be stored in cryptographically encrypted form in the first integrated subscriber identity module 150 using a first public cryptographic key. Likewise, the mobile radio subscriber identifier 113 can be stored in the second integrated subscriber identity module 160 in a cryptographically encrypted manner using a second public cryptographic key. The first public cryptographic key and the second public cryptographic key can be assigned to the mobile radio network 110.
    2 shows a block diagram of a communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure. In this illustration, the monitoring device 170 is not shown in more detail. The main focus in FIG. 2 is the functionality of the mobile radio communication interface 140. The operating signal 172 and the interference signal 171, which are generated by the monitoring device 170, are fed to the mobile radio communication interface 140 as external signals.
    If the cellular radio communication interface 140 receives the operating signal 172, the communication device 130 is in normal mode or operating mode in which no error has occurred. The mobile radio communication interface 140 is caused by the operating signal 172 to read out the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the first integrated subscriber identity module 150, and the read out values 113, 111, 112 together with the to send out data 114 read out from data memory 180 as first send data 151 to network address 112 of cellular network 110. The period with which the data is read out and sent out can be controlled by the operating signal 172.
    The monitoring device 170 can thus set a cycle with which the reading out and transmission of the data 114 is to take place. This can be, for example, a multiple of a clock or a variable controlled by a processor.
    If the mobile radio communication interface 140 receives the interference signal 171, the communication device 130 changes from the normal mode or operating mode to the redundancy mode. The first integrated subscriber identity module 150 is permanently deactivated and the second integrated subscriber identity module 160 is activated. Furthermore, the mobile radio communication interface 140 is caused by the interference signal 171 to read the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the second integrated subscriber identity module 160 and to read the values 113, 111, 112 together with the to send out data 114 read out from the data memory 180 as second transmission data 161 to the network address 112 of the mobile radio network 110.
    The first transmission data 151 and the second transmission data 161 can designate a temporary memory in the cellular communication interface 140 in order to temporarily store the cellular subscriber identification 113, the network identification 111 and the network address 112 of the cellular network 110 until the data 114 from the Data memories have been read out in order to transmit the mobile radio subscriber identification 113, the network identification 111 and the network address 112 of the mobile radio network 110 together with the data 114 read out from the memory 180 to the network 110.
    3 shows a block diagram of a mobile radio communication interface 140 of a communication device 130 with two integrated subscriber identity modules 150, 160 for redundant communication according to the disclosure. The communication device 130 can correspond to the mobile radio communication device 130 described in FIGS. 1 and 2.
    The mobile radio communication interface 140 comprises a voltage supply connection 191 to which the operating voltage 190 is applied. The first integrated subscriber identity module 150 is connected to the voltage supply connection 191 via a destructible fuse 192. The mobile radio communication interface 140 is designed to destroy the destructible fuse 192 in order to permanently deactivate the first integrated subscriber identity module 150 by disconnecting it from the operating voltage 190.
    For example, the destructible fuse 192 can be a thermal fuse. The cellular radio communication interface 140 can be designed to send an electrical current through the destructible fuse 192 in order to thermally destroy the destructible fuse 192. The cellular radio communication interface 140 can include, for example, a processor that executes the functionalities of the cellular radio communication interface 140. This processor can, for example, cause the fuse 192 to transmit a current which is high enough to destroy the fuse when the interference signal 171 is received or is present at the cellular radio communication interface 140.
    When the interference signal 171 is present, the mobile radio communication interface 140 can also connect the second integrated subscriber identity module 160 to the power supply connection 191 in order to activate the second integrated subscriber identity module 160.
    The mobile radio communication interface 140 can comprise an operating voltage source 193, for example a battery, which is designed to provide the operating voltage 190 to the voltage supply connection 191.
    The mobile radio communication interface 140 can have a switch 194, which is designed to connect either the first integrated subscriber identity module 150 or the second integrated subscriber identity module 160 to the voltage supply connection 191, depending on the presence of the operating signal 172 or of the interference signal 171. The changeover switch 194 can be designed as a transistor, for example as an FET or a bipolar transistor.
    When the operating signal 172 is present, the second integrated subscriber identity module 160 can be separated from the voltage supply connection 191 and the first integrated subscriber identity module 150 can be connected to the voltage supply connection 191.
    If the interference signal 171 is present, the first integrated subscriber identity module 150 can be separated from the voltage supply connection 191 and also be permanently deactivated by destroying the fuse 192, while the second integrated subscriber identity module 160 can be connected to the voltage supply connection 191.
    4 shows a schematic illustration of a mobile radio communication device 130 for redundant communication according to the disclosure in a 5G communication system 300 according to an exemplary embodiment according to the specification 3GPP TS 23.501. The various blocks which such a 5G communication system 300 comprises are shown schematically in FIG.
    The mobile radio communication device 130 corresponds to the user equipment (UE) or client terminal, which can be operated by the subscriber to initiate communication in the 5G network, i.e. to start communication (mobile originating, MO) or to be accepted (mobile terminating, MT). The mobile radio communication device 130 can also initiate a communication without user interaction, for example it can be a machine terminal, for example for a car, a machine, a robot or some other device.
    The (R) AN ((Radio) Access Network) entity 331 represents the (radio) access network with which the mobile radio communication device 130 receives access to the 5G communication network. The interface between mobile radio communication device 130 and (R) AN can be an air interface if the access network 331 is a radio network or can be wired if the access network 331 is a wired network.
    The AMF (Access and Mobility Management Function) entity 340 represents the access and mobility management function. This is used to manage the access and mobility control. The AMF 340 may also include network slice selection functionality. With wireless access, mobility management is usually not required.
    The SMF (Session Management Function) entity 341 represents the session management function. The SMF entity 341 sets up sessions and manages them in accordance with the network policy or network planning.
    The UPF (User Plane Function) entity 332 represents the User Plane Function. Such User Plane Functions can be applied in various configurations and locations, according to the type of service.
    The PCF (Policy Control Function) entity 342 represents the policy (or planning) control function. The PCF entity 342 thus provides a policy framework which includes network slicing, roaming and mobility management. This corresponds to the functionality of a PCRF in 4G systems.
    The UDM (Unified Data Management) entity 352 provides a common data management. With this data management, participant data and profiles are saved. This corresponds to the functionality of an HSS in 4G systems, but can be used for both mobile and wired access in the NG Core network.
    The mobile radio communication interface 140 can, for example, transmit the data 114 together with the network parameters 111, 112, 113, as described above for FIGS. 1 to 3, to the UDM 352 block. For example, measured values or measurement parameters that were recorded by the mobile radio communication device 130 can be stored in the network 300.
    The DN (Data Network) 333 provides the data network via which data is transmitted, for example from a cellular communication device 130 to another cellular communication device 130 or UE. For example, two machine terminals 130, as described above for FIGS. 1 to 3, can communicate with one another via the data network 333.
    The data 114 can thus be transmitted from the mobile radio communication device 130 to another mobile radio communication device or other UE via the DN 333.
    The AUSF (Authentication Server Function) entity 351 provides authentication functionality with which the subscriber or the mobile radio communication device 130 can register in the network. The first integrated subscriber identity module 150 or, in redundancy mode, the second integrated subscriber identity module 160 can authenticate themselves in the 5G network 300, for example, via the AUSF 351 block.
    The AF (Application Function) entity 351 provides application functions with which certain services can be carried out, for example services that are set up or used by the first integrated subscriber identity module 150 or the second integrated subscriber identity module 160.
    The NSSF (Network Slice Selection Function) entity 350 provides functions to select certain network slices. For example, the first integrated subscriber identity module 150 or, in redundancy mode, the second integrated subscriber identity module 160 can select a first slice or a second slice in the 5G communication system 300 and communicate via it or transfer their data 114 there.
    The 5G communication system 300 shown in Figure 3 corresponds to the 5G system architecture according to the specification 3GPP TS 23.501 and represents the structure of the NG (Next Generation) network, which consists of network functions (NFs) and reference points that connect the NFs. In the specification 3GPP TS 23.501, however, the terminal is only generally referred to as UE (User Equipment) without the special embodiment shown here in FIG. 3 with two integrated subscriber identity modules iSIM1 and iSIM2. The mobile radio communication device 130 or UE is connected either to a radio access network (RAN) 331 or an access network (AN) 331. In addition, the mobile radio communication device 130 or UE is connected to the access and mobility function (AMF) 340. The RAN 331 is a base station that uses the new RAT (Radio Access Technology) and advanced LTE technologies, while the AN 331 is a general base station with non-3GPP access, such as WiFi. The next generation core network or the 5G communication system 300 shown in FIG. 4 consists of various network functions (NFs). In Figure 4 there are seven Next Generation Core NFs, namely (1) AMF 340, (2) Session Management Function (SMF) 341, (3) Policy Control Function (PCF) 342, (4) Application Function (AF) 343, (5) Authentication Server Function ( EX) 351, (6) User Level Function (UPF) 332 and (7) User Data Management (UDM) 352. The integrated subscriber identity modules 150, 160 can select one or more network functions from them to initiate the communication.
    The network function (NF) represents the processing function taken over by 3GPP in NextGen or NG. It has both functional behavior and at the same time serves as an interface. A NF can either be implemented on dedicated hardware as a network element or run as a software instance on dedicated hardware or as a virtualized function instantiated on a suitable platform, e.g. B. be implemented in a cloud infrastructure.
    The AMF 340 or AMF entity 340 offers UE-based authentication, authorization, mobility management, etc. A mobile radio communication device 130 is connected, for example, to a single AMF 340, since the AMF 340 is independent of the access technology. That is to say, even a mobile radio communication device 130 with multiple access technologies only needs to be connected to a single AMF 340.
    This AMF 340 forms, for example, a network entity with network identification 111 and network address 112, as described above for Figures 1 to 3, and is responsible for the messages or communication requests of the first or second integrated subscriber identity module 150, 160 of the mobile radio -Communication interface 140 to terminate or answer in order to initiate communication of the first or second integrated subscriber identity module 150, 160 in the cellular network 110.
    The AMF 340 can also process the messages or communication requests of the first or second integrated subscriber identity module 150, 160 of the cellular communication interface 140 and forward them to a second cellular network, for example a second network slice of the communication system 300, for example initiate a communication of the first or second integrated subscriber identity module 150, 160 in a second network slice.
    The SMF 341 or SMF entity 341 is responsible for session management and assigns one or more IP addresses to the mobile radio communication device 130. In addition, the SMF 341 selects the UPF 332 and controls the UPF 332 with regard to the data transfer, for example for the transfer of the data 114. If a mobile radio communication device 130 has several sessions, different SMFs 341 can be assigned to each session in order to handle them individually to control and possibly to provide several functionalities per session.
    The AF 343 or AF entity 343 provides information about the packet flow and makes it available to the PCF 342, which is responsible for policy control, so as to ensure the Quality of Service (QoS). Based on this information, the PCF 342 determines the mobility and session management policies for the AMF 340 and SMF 341 to function properly.
    The AUSF 351 or AUSF entity 351 stores data for the authentication of the mobile radio communication device 130, while the UDM 352 stores subscription data or subscriber data of the mobile radio communication device 130. The data network DN 333, which is not part of the NG Core network 300, provides Internet access and operator services.
    The reference point representation of the architecture can be used to represent detailed message flows in the next generation (NG) standardization. The reference point N1 301 is defined as transmission signaling between the mobile radio communication device 130 and the AMF 340. The reference points for the connection between the AN 331 and the AMF 340 and between the AN 331 and the UPF 332 are defined as N2 302 and N3 303, respectively . There is no reference point between the AN 331 and the SMF 341, but there is a reference point, N11 311, between the AMF 340 and the SMF 341. This means that the SMF 341 is controlled by the AMF 340. N4 304 is used by the SMF 341 and the UPF 332 so that the UPF 332 can be set with the generated control signal from the SMF 341, and the UPF 332 can report its status to the SMF 341. N9 309 is the reference point for the connection between different UPFs 332 and N14 314 is the reference point between different AMFs 340. N15 315 and N7 307 are defined so that the PCF 342 can apply its guidelines to the AMF 340 or the SMF 341. N12 312 is required so that the AMF 340 can carry out the authentication of the mobile radio communication device 130. N8, 308 and N10, 310 are defined because the subscription data of the mobile radio communication device 130 are required by the AMF 340 and the SMF 341.
    The next generation network 300 aims to achieve a separation of the user and control level. The user plane carries the user traffic while the control plane carries the signaling in the network. In Figure 4, the UPF 332 is in the user level and all other network functions, that is, AMF 340, SMF 341, PCF 342, AF 343, AUSF 351 and UDM 352 are in the control level. The separation of the user and control level guarantees the independent scaling of the resources of each network level. The separation also allows UPFs 332 to be provided in a distributed manner separate from the control plane functions.
    The NG architecture 300 consists of modularized functions. For example, the AMF 340 and the SMF 341 are independent functions in the control plane. Separate AMF 340 and SMF 341 allow independent development and scaling. Other control level functions such as the PCF 342 and the AUSF 351 can also be separated. The modularized functional design shown in FIG. 4 also enables the next generation network 300 to flexibly support a wide variety of services.
    Each network function interacts directly with a different NF. In the control plane, a number of interactions between two NFs are defined as a service so that they can be reused. This service enables the support of modularity. The user plane supports interactions such as forwarding operations between different UPFs 332.
    The next generation network 300 supports roaming, that is, the ability of a cellular network subscriber to automatically receive or make calls in a cellular network other than his home network, to send and receive data or to have access to other cellular network services. There are two types of application scenarios, on the one hand Home Routed (HR), on the other hand local breakout (LBO, “local breakout”). The communication device 130 can thus also send its data 114 to its home network via a visited cellular network using the functionalities described above.
    5 shows a schematic illustration of a method 500 for redundant mobile radio communication by means of two integrated subscriber identity modules 150, 160 according to the disclosure.
    The method 500 is used for wireless communication of a mobile radio communication device 130, as described, for example, in relation to FIGS. 1 to 4, via a mobile radio network 110, the mobile radio network 110 having a network identification 111, and the mobile radio communication device 130 being a mobile radio Communication interface 140 and a data memory 180 which is set up to store data 114.
    The mobile radio communication interface 140 has a first integrated subscriber identity module, iSIM: Integrated Subscriber Identity, 150 and a second integrated subscriber identity module 160. The first integrated subscriber identity module 150 is implemented as an embedded integrated circuit and permanently stores a mobile radio subscriber identifier 113 together with the network identification 111 and a network address 112 of the mobile radio network 110, as described above for FIGS. 1 to 4. The second integrated subscriber identity module 160 is implemented as an embedded integrated circuit and permanently stores the mobile radio subscriber identifier 113 together with the network identification 111 and the network address 112 of the mobile radio network 110, as described above for FIGS.
    The mobile subscriber identifier 113 identifies the first integrated subscriber identity module 150 and the second integrated subscriber identity module 160 in the mobile network 110. The second integrated subscriber identity module 160 is designed as a redundancy module and is provided, the first integrated subscriber identity module 150 to be replaced in the event of a fault in the first integrated subscriber identity module 150, as described above with regard to FIGS. 1 to 4.
    The method comprises the following steps: monitoring 501 an operating voltage 190 applied to the first integrated subscriber identity module 150; Detection 502 of a fault in the first integrated subscriber identity module 150 when the operating voltage 190 changes by a predetermined threshold value; Outputting 503 an interference signal 171 upon detection of the interference; Output 504 of an operating signal 172 if a change in operating voltage 190 is less than the predetermined threshold value.
    Alternatively, the following two step sequences are carried out: when the operating signal 172 is present: reading 505 the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the first integrated subscriber identity module 150 and sending 506 the mobile radio subscriber identifier 113 together with the network identification 111, the network address 112 of the cellular network 110 and the data 114 to the network address 112 of the cellular network 110.
    If the interference signal 171 is present: permanent deactivation 507 of the first integrated subscriber identity module 150; Activating 508 the second integrated subscriber identity module 160; Reading 509 the mobile radio subscriber identifier 113, the network identification 111 and the network address 112 of the mobile radio network 110 from the second integrated subscriber identity module 160; and sending 510 the mobile radio subscriber identifier 113 together with the network identification 111, the network address 112 of the mobile radio network 110 and the data 114 to the network address 112 of the mobile radio network 110.
    These steps correspond, for example, to the functionalities as described above for FIGS. 1 to 4.
    One embodiment of the invention relates to a computer program product which can be loaded directly into the internal memory of a digital computer and comprises software code sections with which the method 500 described in relation to FIG. 5 or the processes described in relation to FIGS. 1 to 4 are carried out when the product is running on a computer. The computer program product can be stored on a computer-compatible, non-transitory medium and comprise computer-readable program means which cause a computer to carry out the method 500 or to implement or control the network components of the communication networks described in FIGS.
    The computer can be a PC, for example a PC on a computer network. The computer can be implemented as a chip, an ASIC, a microprocessor or a signal processor and can be arranged in a computer network, for example in a communication network as described in FIGS.
    It goes without saying that the features of the various exemplary embodiments described herein can be combined with one another, unless specifically stated otherwise. As shown in the description and the drawings, individual elements that have been shown in connection need not be directly connected to one another; Intermediate elements can be provided between the connected elements. Furthermore, it goes without saying that embodiments of the invention can be implemented in individual circuits, partially integrated circuits or completely integrated circuits or programming means. The term "for example" is meant as an example only and not as the best or optimal. Certain embodiments have been illustrated and described herein, but it will be apparent to those skilled in the art that a variety of alternative and / or similar implementations can be made in lieu of the embodiments shown and described without departing from the concept of the present invention.
    权利要求:
    Claims (10)
    [1]
    1. Mobile radio communication device (130) for wireless communication via a mobile radio network (110), the mobile radio network (110) having a network identification (111) with the following features:a cellular radio communication interface (140) for communication with the cellular radio network (110), the cellular radio communication interface (140) having a first integrated subscriber identity module (150) and a second integrated subscriber identity module (160), the first integrated subscriber -Identity module (150) is implemented as an embedded integrated circuit and permanently stores a mobile radio subscriber identifier (113) together with the network identification (111) and a network address (112) of the mobile radio network (110), the second integrated subscriber identity module (160 ) is implemented as an embedded integrated circuit and permanently stores the mobile radio subscriber identifier (113) together with the network identification (111) and the network address (112) of the mobile radio network (110), the mobile radio subscriber identifier (113) being the first integrated subscriber. Identity module (150) and the second integrated participant Identity module (160) in the mobile radio network (110), the second integrated subscriber identity module (160) being designed and provided as a redundancy module, the first integrated subscriber identity module (150) in the event of a fault in the first integrated subscriber identity module (150) to replace;a monitoring device (170) which is designed to monitor an operating voltage (190) applied to the first integrated subscriber identity module (150); if the operating voltage (190) changes by a predetermined threshold, the first integrated subscriber identity module ( 150) and to output an interference signal (171), and wherein the monitoring device (170) is designed to output an operating signal (172) if the change in the operating voltage (190) is less than the predetermined threshold value; anda data memory (180) which is configured to store data (114);wherein the mobile radio communication interface (140) is formed when the operating signal (172) is present,- read out the mobile radio subscriber identifier (113), the network identification (111) and the network address (112) of the mobile radio network (110) from the first integrated subscriber identity module (150), and- to send the mobile radio subscriber identifier (113) together with the network identification (111), the network address (112) of the mobile radio network (110) and the data (114) to the network address (112) of the mobile radio network (110); andwherein the mobile radio communication interface (140) is formed when the interference signal (171) is present,- permanently deactivate the first integrated subscriber identity module (150),- activate the second integrated subscriber identity module (160);- Read out the mobile radio subscriber identifier (113), the network identification (111) and the network address (112) of the mobile radio network (110) from the second integrated subscriber identity module (160) and- to send out the mobile radio subscriber identifier (113) together with the network identification (111), the network address (112) of the mobile radio network (110) and the data (114) to the network address (112) of the mobile radio network (110).
    [2]
    2. Mobile radio communication device (130) according to claim 1, wherein the mobile radio communication interface (140) has a voltage supply connection (191) to which the operating voltage (190) is applied, wherein the first integrated subscriber identity module (150) with the voltage supply connection ( 191) is connected via a destructible fuse (192), and wherein the mobile radio communication interface (140) is designed to destroy the destructible fuse (192) in order to isolate the first integrated subscriber identity module (150) from the operating voltage (190 ) permanently deactivate.
    [3]
    3. Mobile radio communication device (130) according to claim 2, wherein the destructible fuse (192) is a thermal fuse, and wherein the mobile radio communication interface (140) is designed to send an electrical current through the destructible fuse (192) to to thermally destroy the destructible fuse (192).
    [4]
    4. Mobile radio communication device (130) according to claim 2, wherein the mobile radio communication interface (140) is designed to connect the second integrated subscriber identity module (160) to the power supply connection (191) in order to connect the second integrated subscriber identity module (160) to activate.
    [5]
    5. Mobile radio communication device (130) according to one of claims 2 to 4, wherein the mobile radio communication interface (140) has an operating voltage source (193), in particular a battery, for providing the operating voltage (190) at the voltage supply connection (191).
    [6]
    6. Mobile radio communication device (130) according to one of claims 2 to 5, wherein the mobile radio communication interface (140) has a switch (194) which is designed to be either the first integrated subscriber identity module (150) or the second integrated subscriber - to connect the identity module (160) to the voltage supply connection (191), the second integrated subscriber identity module (160) being separated from the voltage supply connection (191) when the operating signal (172) is present.
    [7]
    7. Mobile radio communication device (130) according to one of the preceding claims, with a sensor which is designed to detect a value of a physical variable and to store the value as the data (114) in the data memory (180).
    [8]
    8. Mobile radio communication device (130) according to one of the preceding claims, wherein the mobile radio communication interface (140) is designed to delete the data (114) after reading out the data (114) in the data memory (180).
    [9]
    9. Mobile radio communication device (130) according to one of the preceding claims, wherein the mobile radio network (110) is a subnetwork of a 5G mobile radio network, wherein the mobile radio communication device (130) is a loT communication device, wherein the mobile radio subscriber identifier (113) is stored cryptographically encrypted in the first integrated subscriber identity module (150) using a first public cryptographic key, and wherein the mobile radio subscriber identifier (113) is cryptographically encrypted in the second integrated subscriber identity module (160) using a second public cryptographic key is stored, wherein the first public cryptographic key and the second public cryptographic key are assigned to the cellular network (110).
    [10]
    10. The method (500) for wireless communication of a cellular radio communication device (130) via a cellular radio network (110), the cellular radio network (110) having a network identification (111), and the cellular radio communication device (130) having a cellular radio communication interface ( 140) and a data memory which is set up to store data (114),wherein the mobile radio communication interface (140) has a first integrated subscriber identity module (150) and a second integrated subscriber identity module (160), wherein the first integrated subscriber identity module (150) is implemented as an embedded integrated circuit and a mobile radio Subscriber identification (113) permanently stored together with the network identification (111) and a network address (112) of the mobile radio network (110), the second integrated subscriber identity module (160) being implemented as an embedded integrated circuit and the mobile radio subscriber identification (113) together with the network identification (111) and the network address (112) of the cellular network (110), the cellular subscriber identifier (113) the first integrated subscriber identity module (150) and the second integrated subscriber identity module (160) in the Cellular network (110) identified, the second integrated T Subscriber identity module (160) is designed as a redundancy module and is provided to replace the first integrated subscriber identity module (150) in the event of a fault in the first integrated subscriber identity module (150), the method comprising the following steps:Monitoring (501) an operating voltage (190) applied to the first integrated subscriber identity module (150);Recognizing (502) a fault in the first integrated subscriber identity module (150) when the operating voltage (190) changes by a predetermined threshold value;Outputting (503) an interference signal (171) upon detection of the interference; theOutputting (504) an operating signal (172) if the change in the operating voltage (190) is less than the predetermined threshold value;when the operating signal is present (172):Reading (505) the mobile radio subscriber identification (113), the network identification (111) and the network address (112) of the mobile radio network (110) from the first integrated subscriber identity module (150) andSending (506) the mobile radio subscriber identifier (113) together with the network identification (111), the network address (112) of the mobile radio network (110) and the data (114) to the network address (112) of the mobile radio network (110); andif the interference signal is present (171):permanently deactivating (507) the first integrated subscriber identity module (150);Activating (508) the second integrated subscriber identity module (160);Reading (509) the mobile radio subscriber identification (113), the network identification (111) and the network address (112) of the mobile radio network (110) from the second integrated subscriber identity module (160); andSending (510) the mobile radio subscriber identifier (113) together with the network identification (111), the network address (112) of the mobile radio network (110) and the data (114) to the network address (112) of the mobile radio network (110).
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN202010473430.0A|CN111556484A|2020-05-29|2020-05-29|Mobile radio communication device for redundant communication with two iSIMs|
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