EP4464124A1 - Übertragung von dateien mittels nebenläufig aktiven vermittlungsvorrichtungen - Google Patents
Übertragung von dateien mittels nebenläufig aktiven vermittlungsvorrichtungenInfo
- Publication number
- EP4464124A1 EP4464124A1 EP23710228.0A EP23710228A EP4464124A1 EP 4464124 A1 EP4464124 A1 EP 4464124A1 EP 23710228 A EP23710228 A EP 23710228A EP 4464124 A1 EP4464124 A1 EP 4464124A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- type
- switching devices
- communication participant
- file
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/308—Route determination based on user's profile, e.g. premium users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
Definitions
- the invention relates to a method for transmitting data, a system for carrying out the method, a computer program and a computer-readable medium.
- Switching devices are usually used for the purpose of transmitting data between different sections of a network. These switching devices serve on the one hand as contacts for a communication participant in this network and on the other hand as a kind of translator between differently configured network sections of the network. The latter switching of the data can take place on all layers of the OS I standard model and is not restricted to a particular layer, in particular not to the network layer. Such a switching device is referred to as a "gateway" in the English-speaking world. So far, it has been known to equip a communication participant with several switching devices. However, of these several switching devices, only one is set up to actively transmit data between the different network sections. The rest of the several Switching devices meanwhile remain in a passive operating state.
- the object of the invention is to provide a reliable and efficient method for transmitting data.
- the invention is based on the object of specifying a system by means of which the method according to the invention can be carried out.
- the invention is based on the objects of specifying a computer program for carrying out the method and a computer-readable medium.
- a switching device is to be understood in the present context as a hardware-based gateway which has at least one processor and is set up to transmit data in a network from a first network section of the network to a further network section of the network.
- the gateway is one in the sense of computer science, as described above, which can mediate on all layers of the OS I standard model.
- the switching device is a so-called “mobile communication gateway” (MCG) or a so-called “ground communication gateway” (GCG).
- the feature "concurrent" is to be understood in the present context in the sense of computer science in such a way that data is transmitted or received simultaneously by means of various of the several switching devices of a communication participant.
- different data can be transmitted simultaneously by means of at least one of the several switching devices This can be realized, for example, virtually and/or by means of different communication channels. In this way previously unused resources of already existing switching devices can be used. Furthermore, a particularly fast and reliable data transmission can be implemented in this way.
- An advantageous development provides that a file is transmitted from the second type of communication participant to the first type of communication participant by dividing the file to be transferred into a number of data blocks. At least some of the multiple data blocks are transmitted concurrently to the first type of communication subscriber by means of different ones of the multiple switching devices of the second type of communication subscriber. This allows parts of a file to be transferred at the same time. This enables time-efficient data transmission to be implemented. Alternatively, it is conceivable that different files and/or data blocks of different files are transmitted concurrently using different ones of the multiple switching devices.
- the file is stored in a database that is jointly accessible by the switching devices.
- the database is to be understood as a database system which is set up for the purpose of electronic data management.
- this database system is designed as a distributed, replicated database system, as a distributed, replicated file system, as a virtual shared memory, which in information technology is also referred to as "Virtual Shared Memory” (VSM) or as a distributed shared memory , which is known in information technology as “Distributed Shared Memory” (DSM).
- VSM Virtual Shared Memory
- DSM distributed shared memory
- a simple access to a file or its file blocks is made possible for all switching devices.
- the data blocks are accessible to all of the switching devices, even in the event that a switching device transmitting a data block fails. A faulty data transmission ment in which data is incompletely transmitted due to a failure of a switching device can thus be easily reduced.
- an advantageous embodiment variant provides for the multiple data blocks of the file to be transmitted to be transmitted concurrently on the instructions of the communication subscriber of the first type.
- different files and/or data blocks of different files to be transmitted to the communication subscriber of the first type concurrently by means of different ones of the plurality of switching devices.
- the communication participant of the first type as the recipient, determines when which file is to be transmitted to it.
- the transmission can be continued efficiently since the first type of communication participant, as the recipient, knows the data that has already been securely transmitted and thus knows a byte-precise location of the interruption. At this point of the interruption, the transmission of the data can then be continued.
- the instruction mentioned is preferably a so-called “get” instruction, which is provided by the HTTP protocol, for example, or a so-called “retrieve” instruction, which is provided by the FTP protocol or the SFTP protocol, for example .
- This enables simple concurrent transfer of files and/or data blocks of a file.
- a further advantageous development provides that different ones of the several switching devices of the communication subscriber of the second type are selected for the purpose of transmitting data blocks of a file according to at least one selection criterion.
- the selection criterion mentioned is a criterion relating to the utilization of hardware in the switching devices.
- Such a criterion is, for example, a CPU load, a ment of a memory, such as the main memory or an external memory, a number of free communication channels or another criterion relating to the hardware and/or the network as such, such as an available total memory, a maximum transmission speed or a maximum transmission capacity.
- the selection criterion is made up of a freely selectable combination of the aforementioned criteria. This makes it possible to realize a flexible and individually configurable distribution of a workload to different switching devices.
- an advantageous further development provides that the communication participant of the first type sends relevant information to the communication participant of the second type for the purpose of confirming that the file to be transmitted has been completely transmitted. This tells the sender that the file has been completely transmitted. As a result, there is the possibility that the file to be transmitted will be deleted by means of the second type of communication participant. Resource-saving use of memory can be provided in this way.
- information regarding a complete transfer of the file to be transferred can be forwarded to a participant in a local network of the communication participant of the second type, by means of which, for example, the transfer of said file was commissioned.
- a file is provided for transmission from the first type of communication participant to the second type of communication participant.
- This transmission is realized by using the first type of communication participant to send a transfer order to one of the several switching devices of the second type of communication participant.
- all switching devices are set up as equal contact persons for the second-type communication subscriber. therefore can said transfer order can be sent to any one of the several switching devices.
- the said transfer order is stored in a database.
- the database mentioned is in particular one of the type already described above. Transfer orders can be stored either in the previously designated database or in a separate, separate database.
- At least one of the several switching devices is then selected on the basis of the selection criterion for the purpose of accepting the transfer order.
- the transfer order is then executed by the switching device selected to accept the transfer order.
- the file to be transferred is read by means of the selected switching device.
- the file to be transmitted is divided into a number of data blocks.
- the transfer order is divided according to the multiple data blocks.
- different ones of the multiple switching devices of the communication subscriber of the second type are selected for the purpose of reading at least one data block of the multiple data blocks.
- the data blocks of the file to be transferred are read at least in part concurrently by means of the selected different switching devices on their instructions.
- the instruction mentioned is in particular one of the type already described above. In this way, only the communication participant determines the second Type as recipient, when which file should be transferred to this.
- the transmission can be continued efficiently since the first type of communication participant, as the recipient, knows the data that has already been securely transmitted and thus knows a byte-precise location of the interruption. At this point of the interruption, the transmission of the data can then be continued.
- a further selection criterion is used to determine which switching device of the plurality of switching devices is used to take over which portion of the transfer order. This enables a resource-saving and even load distribution.
- a further advantageous embodiment variant provides for a file or data blocks of this file to be stored in a common database that can be accessed by the multiple switching devices.
- the database is in particular one of the type already described above.
- the reliability of the method for data transmission is increased by means of a jointly accessible database.
- errors can be prevented in a cost-effective manner.
- an advantageous embodiment variant provides that information is sent to the communication participant of the first type by means of the communication participant of the second type for the purpose of confirming that the file to be transmitted has been completely transmitted. This tells the sender that the file has been completely transmitted. As a result, there is the possibility that the file to be transmitted will be deleted by means of the communication subscriber of the first type. This enables a resource-saving use of memory.
- information regarding a complete transfer of the file to be transferred can be sent a subsystem of the communication participant of the second type are forwarded.
- the data blocks be assembled by means of the communication subscriber of the second type after the file has been received in full.
- an advantageous embodiment in which the information relating to a complete transmission of the file to be transmitted is forwarded to a target recipient of a subsystem of the second-type communication subscriber. The latter can then retrieve the present file.
- a further advantageous development provides that each switching device of the multiple switching devices of the communication subscriber of the second type is monitored by at least one other of the multiple switching devices for a defective operating state. This makes it possible to provide a high level of operational reliability and fail-safety for the data transmission method.
- An advantageous embodiment variant provides that information regarding the operating state is output at regular time intervals by means of each of the multiple switching devices of the communication subscriber of the second type. At least one of the other switching devices of the plurality of switching devices is used to check whether the said information has been output. In this way, the switching devices can be monitored efficiently and reliably for a faulty operating state.
- At least one of the other switching devices of the plurality of switching devices is used to evaluate the said information, if it was output.
- a faulty operating state of a switching device can also be detected if the switching device does not fail completely, but only works incorrectly.
- such a malfunction of a switching device can be detected by means of a self-test of a switching device known to those skilled in the art.
- an advantageous embodiment provides that the transfer order taken over by the failed switching device or a part thereof is taken over by at least one of the remaining of the several switching devices. In this way it can be prevented in a simple manner that switching devices in a passive operating state have to be available in the event of failure of an active switching device. Resources from existing switching devices can thus be used for the purpose of preventing bottlenecks.
- an advantageous embodiment provides that the transfer order taken over by the failed switching device or a part thereof is taken over and executed by at least one switching device selected from the other switching devices based on the selection criterion.
- a workload can thus be distributed evenly to the remaining of the multiple switching devices.
- an advantageous embodiment variant provides that progress information relating to the progress of reading a data block and/or a file is stored by each switching device of the plurality of switching devices involved in the transmission of a file.
- the reading of the data block to be read by the failed switching device and/or the file is continued on the basis of the stored progress information by means of another switching device of the plurality of switching devices.
- a byte-exact continuation of the reception of a data block can be made possible. In this way, the efficiency and reliability of the data transmission process can be optimized.
- An advantageous embodiment provides for the progress information to be stored in the previously described database that can be accessed jointly by the multiple switching devices. This enables central monitoring of the multiple switching devices involved in the transmission of a file.
- a further advantageous embodiment provides that, based on the progress information, a faulty operating state of at least one part of the several switching devices is monitored at the same time. In this way, further monitoring indicators, such as the aforementioned regular information output, can be dispensed with. In addition, an efficient method for the transmission of data can be provided in this way.
- a further advantageous embodiment variant provides that at least one of the several switching devices is selected according to the selection criterion in order to continue reading the data block or file received from the failed switching device.
- the selection criterion is in particular one of the aforementioned type. Using the switching device selected in this way, the reading of the data block or file to be read by the failed switching device is continued on the basis of the stored progress information. This makes it possible, in the event of a failure of one of the switching devices, to distribute a workload evenly to the remaining ones of the plurality of switching devices.
- the method according to the invention is carried out by means of the system according to the invention.
- the system for carrying out the method has a first-type communication participant and a second-type communication participant.
- the communication subscriber of the second type has a number of switching devices.
- the several switching devices mentioned are set up to carry out the method according to the invention.
- the switching devices mentioned are in particular the switching devices already described in connection with the method according to the invention.
- Such a system makes it possible to use available resources efficiently and evenly.
- availability and failsafety of the system can be improved in this way.
- the first type of communication participant is in the form of a stationary communication participant.
- the stationary communication subscriber is preferably a land-based system with a fixed location.
- the communication participant of the second type is in the form of a mobile communication participant.
- the mobile communication participant is a vehicle.
- the vehicle is particularly preferably a rail-bound vehicle.
- the IEC 61375-2-6 standard defines the transmission of files from rail vehicles to stationary communication participants and vice versa. In view of the ever-increasing amounts of data that are to be sent from or received by mobile communication users, this enables data to be transmitted efficiently and reliably in a simple manner.
- an advantageous development of the system provides that the multiple switching devices of the communication subscriber of the second type are set up to transmit data between a local network and a mobile radio network.
- the effects of poor reception from a switching device on a transmission of data can be compensated for by good reception from other switching devices.
- Such a difference between the reception of a switching device and other switching devices can arise, for example, through the use of different network providers.
- the invention provides a computer-readable medium, which has instructions by means of which the system according to the invention is prompted to carry out the method according to the invention.
- the computer-readable medium can be, for example, a CD-ROM, a DVD, a USB or flash memory or an intangible medium such as a data stream and/or a data carrier signal.
- FIG. 1 shows an exemplary embodiment of the system according to the invention for carrying out an example of the method according to the invention in a schematic representation and an illustration of the example of the method according to the invention
- FIG. 2 shows a schematic illustration of the example of the method according to the invention, in which a file is transmitted from a communication participant of the second type to a communication participant of the first type;
- FIG. 3 shows a schematic illustration of the example of the method according to the invention, in which a file is transmitted from a first-type communication participant to a second-type communication participant.
- FIG. 1 shows an exemplary embodiment of a system 10 according to the invention in a schematic representation. Furthermore, FIG. 1 illustrates an example of the method 100 according to the invention.
- the system 10 has, by way of example, a land-based system as the stationary communication subscriber 12 .
- the system 10 has, for example, a rail-bound vehicle 14 as a mobile communication participant.
- the rail-bound vehicle 14 itself has three switching devices 16 , 18 , 20 which are set up to transmit 101 data D between the stationary communication subscriber 12 and the rail-bound vehicle 14 in parallel.
- the three switching devices 16 , 18 , 20 are each set up to transmit data D between a local area network L of the rail-bound vehicle 14 and a mobile radio network M.
- the rail-bound vehicle 14 has a central database 22 .
- the three switching devices 16 , 18 , 20 have joint access to this database 22 .
- FIG. 2 shows a further schematic illustration of the aforementioned example of the method 100, in which a file is transmitted 102 from the rail-bound vehicle 12 to the stationary communication subscriber 14.
- FIG. The concurrent transmission 101 of the file to be transmitted is implemented by dividing 104 this file to be transmitted into a number of data blocks. It is also conceivable here that instead of several data blocks of a file, several files are concurrently transferred 101 in the manner described below.
- the selection criterion mentioned is a criterion relating to the utilization of hardware in the switching devices 16 , 18 , 20 .
- Such a criterion is, for example, a CPU load, a memory utilization, such as the main memory or an external memory, a number of free communication channels or another criterion relating to the hardware as such, such as an available total memory, a maximum transmission speed or a maximum transmission capacity.
- the selection criterion is weighted in such a way that only predetermined switching devices 16, 18, 20 can be selected for the purpose of transmitting data blocks 106. After a selection of at least two of the three switching devices 16, 18, 20, each selected switching device 16 , 18, 20 assigned at least one data block to be transmitted to the plurality of data blocks.
- the data blocks assigned to them are transmitted 101 in parallel to an instruction from the stationary communication participant 12.
- the instruction is preferably carried out using the HTTP protocol command "get". In this way, the stationary Communication participants 12 as recipients from the file in blocks and stores the received data blocks in turn.
- FIG. 2 also illustrates that the three switching devices 16, 18, 20 mutually monitor 122 for a faulty operating state.
- information about the operating state of each of the three switching devices 16, 18, 20 is output at regular time intervals 124.
- At least one of the other switching devices 16, 18, 20 is then used to check 128 whether the said information has been output.
- said output information is stored in the database 22 126. In this way, all switching devices 16, 18, 20 have access to the information relating to the operating states of the other switching devices 16, 18, 20 of the three switching devices 16, 18, 20 at least one other of the three switching devices 16, 18, 20 are monitored 122.
- one of the other switching devices switching devices 16, 18, 20 are selected 106 according to the selection criterion for the purpose of continuing a transmission of the data block to be transmitted by the failed switching device.
- the data block or blocks of data to be transmitted from the failed switching device 16 , 18 , 20 are then assigned to the switching device 16 , 18 , 20 selected in this way. In this way, a transmission of this data block is reliably continued 132 by means of the selected switching device 16 , 18 , 20 .
- the stationary communication participant 12 sends relevant information to the rail-bound vehicle 14 for the purpose of confirming that the file to be transmitted has been completely transmitted. As a result of receiving said information, the file to be transferred can be deleted.
- FIG. 3 illustrates a transmission of a file from the stationary communication participant 12 to the rail-bound vehicle 14 .
- the stationary communication subscriber 12 sends 112 a transfer order to any one of the three switching devices 16 , 18 , 20 .
- all three switching devices 16 , 18 , 20 are set up as equal contact persons of the rail-bound vehicle 14 . It is therefore irrelevant to which of the three switching devices 16, 18, 20 the transfer order is directed.
- Said transfer order is stored 114 in the database 22 .
- the file to be received according to the transfer order is divided 104 into a number of data blocks. The transfer order is then divided 118 according to the previously mentioned data blocks.
- At least two of the three switching processes are devices 16, 18, 20 are selected 106 for the purpose of reading at least one data block of the plurality of data blocks.
- the transfer order is then executed 120, in which the multiple data blocks of the file to be transferred are transferred 101 at least in part by means of the selected different switching devices 16, 18, 20 on their instruction.
- the instruction is preferably the “get” command according to the HTTP protocol.
- FIG. 3 also illustrates that the three switching devices 16, 18, 20 mutually monitor 122 for a defective operating state.
- a file is transmitted 110 from the stationary communication participant 12 to the rail-bound vehicle 14
- progress information regarding a progress of the reading a block of data 124 is stored 126 in the database 22 that can be accessed jointly by the switching devices 16 , 18 , 20 .
- the other three switching devices 16 , 18 , 20 are used to check 128 whether the progress information mentioned has been output 124 .
- this progress information enables the progress of a read process to be tracked down to the last byte.
- the read data blocks are stored 134 in the database 22 by means of the respective switching device 16 , 18 , 20 .
- the read data blocks are stored 134 in the database 22 by means of the respective switching device 16 , 18 , 20 .
- relevant information is sent 108 to the stationary communication subscriber 12 for the purpose of confirming that the file has been completely transmitted.
- the stationary communication subscriber 12 can then delete the file to be transmitted. It is also conceivable that further information regarding the existence of the file is sent to a subsystem of the rail-bound vehicle 14 which has requested the named file.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022201968 | 2022-02-25 | ||
| PCT/EP2023/054601 WO2023161368A1 (de) | 2022-02-25 | 2023-02-23 | Übertragung von dateien mittels nebenläufig aktiven vermittlungsvorrichtungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4464124A1 true EP4464124A1 (de) | 2024-11-20 |
Family
ID=85569885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23710228.0A Pending EP4464124A1 (de) | 2022-02-25 | 2023-02-23 | Übertragung von dateien mittels nebenläufig aktiven vermittlungsvorrichtungen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4464124A1 (de) |
| WO (1) | WO2023161368A1 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900463A (zh) * | 2019-05-13 | 2022-08-12 | 华为技术有限公司 | 车内通信系统、车内通信的方法及设备 |
-
2023
- 2023-02-23 EP EP23710228.0A patent/EP4464124A1/de active Pending
- 2023-02-23 WO PCT/EP2023/054601 patent/WO2023161368A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023161368A1 (de) | 2023-08-31 |
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Owner name: SIEMENS MOBILITY GMBH |