WO2014187893A1 - Wireless redbox comprising a timing splitter - Google Patents

Wireless redbox comprising a timing splitter Download PDF

Info

Publication number
WO2014187893A1
WO2014187893A1 PCT/EP2014/060531 EP2014060531W WO2014187893A1 WO 2014187893 A1 WO2014187893 A1 WO 2014187893A1 EP 2014060531 W EP2014060531 W EP 2014060531W WO 2014187893 A1 WO2014187893 A1 WO 2014187893A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
transmission
wireless
channels
parallel
Prior art date
Application number
PCT/EP2014/060531
Other languages
German (de)
French (fr)
Inventor
Markus Rentschler
Original Assignee
Hirschmann Automation And Control Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hirschmann Automation And Control Gmbh filed Critical Hirschmann Automation And Control Gmbh
Publication of WO2014187893A1 publication Critical patent/WO2014187893A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity

Definitions

  • Fig. 1 An important element in such a diverse transmission system (Fig. 1) is the so-called “splitter” on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • splitter an important element in such a diverse transmission system (Fig. 1) is the so-called “splitter” on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • splitter on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing.
  • D.G. Brennan "Linear diversity combining techniques," Proc. IRE, vol.47, no.1, pp.1075-1102, June 1959, distinguished between phase, space, frequency and time diversity.
  • the signal transmitted is a longer bit or byte sequence over a specific period of time, which can be defined as a signal unit to be considered.
  • this signal unit can be an Ethernet packet or an 802.11 packet in terms of content.
  • the so-called “timing combiner” can be defined as the derivative of the "Selection Combiner” according to [BRENNAN] as follows: When transmitting such longer signal units (eg Ethernet packets), the time of arrival of a copy of the complete and integral signal unit may take place at distinctly different times on the receiver side at differently disturbed parallel transmission channels, eg due to retransmissions on a single one of the radio channels.
  • the "Timing Combiner” as the derivative of the “Selection Combiner” makes the forwarding decision on the first completely and integerly received copy of the signal unit.
  • the main advantage of this method is a statistical improvement of the timing with respect to the latency variability (jitter), since always the earlier arriving signal unit (eg Ethernet packet) "wins".
  • timing combiner is defined for the type of a “selection combiner”, which mainly deals with signal units consisting of longer byte sequences, e.g. Data packets that are transmitted via parallel redundant transmission links with significantly different timing, such as wireless radio transmission links.
  • Patent WO / 06053459 "Reception of redundant and non-redundant frames" by ABB Switzerland Ltd., Corporate Research, Segelhofstr 1 K, CH-5405 Baden, a mechanism is described, with which an uninterruptible redundancy can be achieved, in which the data traffic Duplicated between terminals over two parallel redundant wired networks is transmitted.
  • the object of this invention is high availability in case of failure of one of the parallel networks which can take place with this method without any disturbance of the data traffic.
  • a wireless variant of a "Redundancy Box" (RedBox) is now defined as having, in each case, a wireless communication interface instead of Ethernet interfaces for the two parallel redundant networks ( Figure 3) .
  • These wireless interfaces can be implemented, for example, by WLAN in accordance with IEEE 802.1 1 be realized, but also other wireless standards are used.
  • This invention should make it possible, for example, to technically implement the method described in DE 10 2009 053 868 A1 for secure wireless data transmission.
  • the property is used that occur with high probability no simultaneous transmission interference in diverse parallel redundant wireless connections and therefore - in contrast to singular wireless effetsungskanälen- the packet loss probability is minimized by such a transfer system such that one can speak of a secure wireless transmission
  • the "timing combiner" feature also achieves a statistical improvement in transmission timing since the faster packet always wins on the redundant channels
  • Figure 4 shows an exemplary PRP WLAN system while referring to Figure 5. illustrates the benefits achieved in receive timing with packet loss on one of the redundant channels.
  • this method can be further improved by allowing the use of time diversity in addition to the frequency and space diversity possible through parallel redundancy.
  • Time diversity is achieved by sending one of the parallel redundant signals with a time delay. This can be achieved by a delay element, such as a queue in one of the parallel redundant transmission paths ( Figure 3).
  • the resulting advantage lies in the mastery of broadband, simultaneous disruptions at all parallel redundant transmission channels.
  • the skew increases the likelihood that one of the parallel redundant packets will still be transmitted.
  • the splitter behavior can be adapted to the radio interference behavior.
  • This setting of the delay time can be done either manually or by means of a self-regulating method in that the receiving side evaluates the packet loss rate on the parallel redundant channels and adjusts the optimal delay time on the transmitting side by means of a feedback protocol.
  • the term “tinning splitter” is defined as the type of diversity splitter which transmits signal units over parallel redundant transmission links, such as wireless radio links can be delayed. This time offset can also be adjustable and be adjusted during operation with a control algorithm (“delay control”) present in the receiving system (FIG. 7).
  • a delay element may be provided in one or more of the parallel redundant channels on the transmission side.

Abstract

The invention relates to a method for wireless transmission from a data source to a data sink and/or vice versa via two radio links (channels) that are independent of one another, characterised in that the transmission between the parallel redundant channels is time-staggered.

Description

B E S C H R E I B U N G  DESCRIPTION
Wireless - RedBox mit Timing Splitter Wireless - RedBox with timing splitter
Der schon lange als Stand der Technik bekannte Ansatz von Diversität in der drahtlosen Nachrichtentechnik ist die redundante Übertragung von Daten über stochastisch unabhängige Kanäle, die nur zu einer geringen Wahrscheinlichkeit zur selben Zeit fehleranfällig sind (Fig. 1). The approach of diversity in wireless communication technology, which has long been known as the state of the art, is the redundant transmission of data over stochastically independent channels, which are only susceptible to errors at the same time with a low probability (FIG. 1).
Wichtige Element in solch einem diversitären Übertrag ungssystem (Fig. 1) ist sendeseitig der sogenannte „Splitter", welcher das Signal dupliziert und den redundanten Übertragungskanälen zuführt. Empfangsseitig führt der sogenannte „Combiner" die redundanten Signale wieder zusammen, beziehungsweise wählt das bessere der empfangenen Signale zur weiteren Verarbeitung aus. Typischerweise wird nach [BRENNAN] D.G. Brennan, "Linear diversity combining techniques," Proc. IRE, vol.47, no.1 , pp.1075-1102, June 1959, zwischen Phasen-, Raum-, Frequenz und Zeitdiversität unterschieden. An important element in such a diverse transmission system (Fig. 1) is the so-called "splitter" on the transmitting side, which duplicates the signal and feeds it to the redundant transmission channels Signals for further processing. Typically, according to [BRENNAN] D.G. Brennan, "Linear diversity combining techniques," Proc. IRE, vol.47, no.1, pp.1075-1102, June 1959, distinguished between phase, space, frequency and time diversity.
Im Falle einer paketorientierten Datenübertragung wird als Signal eine längere Bitoder Bytefolge über einen bestimmten Zeitraum übertragen, die als eine zu betrachtende Signaleinheit definiert werden kann. Diese Signaleinheit kann z.B. inhaltlich ein Ethernetpaket oder ein 802.11-Paket sein. Für diesen Spezialfall kann als Ableitung des „Selection Combiner" nach [BRENNAN] der sog. „Timing Combiner" wie folgt definiert werden: Bei Übertragung solcher längerer Signaleinheiten (z.B. Ethernetpaketen) kann der Ankunftszeitpunkt einer Kopie der vollständigen und integren Signaleinheit bei unterschiedlich gestörten parallelen Übertragungskanälen auf der Empfängerseite zu deutlich unterschiedlichen Zeitpunkten stattfinden, z.B. aufgrund von Übertragungswiederholungen auf einem einzelnen der Funkkanäle. Der „Timing Combiner" als Ableitung des „Selection Combiner" trifft in diesem Fall die Weiterleitungsentscheidung bei der ersten vollständig und integer empfangenen Kopie der Signaleinheit. Der wesentliche Vorteil dieses Verfahrens liegt in einer statistischen Verbesserung des Zeitverhaltens in Bezug auf die Latenzvariabilität (Jitter), da immer die früher ankommende Signaleinheit (z.B. Ethernetpaket) „gewinnt". In the case of packet-oriented data transmission, the signal transmitted is a longer bit or byte sequence over a specific period of time, which can be defined as a signal unit to be considered. For example, this signal unit can be an Ethernet packet or an 802.11 packet in terms of content. For this special case, the so-called "timing combiner" can be defined as the derivative of the "Selection Combiner" according to [BRENNAN] as follows: When transmitting such longer signal units (eg Ethernet packets), the time of arrival of a copy of the complete and integral signal unit may take place at distinctly different times on the receiver side at differently disturbed parallel transmission channels, eg due to retransmissions on a single one of the radio channels. In this case, the "Timing Combiner" as the derivative of the "Selection Combiner" makes the forwarding decision on the first completely and integerly received copy of the signal unit. The main advantage of this method is a statistical improvement of the timing with respect to the latency variability (jitter), since always the earlier arriving signal unit (eg Ethernet packet) "wins".
Erfindungsgemäß wird daher der Begriff „Timing Combiner" für die Art eines „Selection Combiners" definiert, der vorwiegend Signaleinheiten bestehend aus längeren Bytefolgen behandelt, also z.B. Datenpakete, die über parallel redundante Übertragungsstrecken mit deutlich unterschiedlichem Zeitverhalten übertragen werden, wie bspw. drahtlose Funkübertragungsstrecken. According to the invention, therefore, the term "timing combiner" is defined for the type of a "selection combiner", which mainly deals with signal units consisting of longer byte sequences, e.g. Data packets that are transmitted via parallel redundant transmission links with significantly different timing, such as wireless radio transmission links.
In Patent WO/06053459 "Reception of redundant and non-redundant frames" von ABB Switzerland Ltd, Corporate Research, Segelhofstr 1 K, CH-5405 Baden, wird ein Mechanismus beschrieben, mit dem eine unterbrechungsfreie Redundanz erreicht werden kann, in dem der Datenverkehr zwischen Endgeräten gedoppelt über zwei parallel redundante kabelgebundene Netzwerke übertragen wird. Die Zielsetzung dieser Erfindung ist eine Hochverfügbarkeit im Falle des Ausfalls eines der parallelen Netzwerke, die mit diesem Verfahren ohne jede Beeinträchtigung des Datenverkehrs stattfinden kann. In Patent WO / 06053459 "Reception of redundant and non-redundant frames" by ABB Switzerland Ltd., Corporate Research, Segelhofstr 1 K, CH-5405 Baden, a mechanism is described, with which an uninterruptible redundancy can be achieved, in which the data traffic Duplicated between terminals over two parallel redundant wired networks is transmitted. The object of this invention is high availability in case of failure of one of the parallel networks which can take place with this method without any disturbance of the data traffic.
Dieses Verfahren wurde in IEC 62439-3 als "Parallel Redundancy Protocol" (PRP) standardisiert. In diesem Zusammenhang ist auch eine sogenannte„Redundancy- Box" (RedBox) beschrieben (Fig. 2), die neben den drei drahtgebundenen Netzwerksschnittstellen („network adapter") nach IEEE 802.3 die sog "Link Redundancy Entity" (LRE), also die bidirektionale Splitter- und Combiner-Funktion von PRP beinhaltet („bridging logic" in Fig. 2). In IEC 62439-3 wird dieses Verfahren auf die Verwendung mit Ethernet eingeschränkt: "The IEC 62439 series is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology." This procedure has been standardized in IEC 62439-3 as a "Parallel Redundancy Protocol" (PRP). In this context, a so-called "Redundancy Box" (RedBox) is described (Figure 2), in addition to the three wired network interfaces ("network adapter") according to IEEE 802.3, the so-called "Link Redundancy Entity" (LRE), ie the bidirectional splitter and combiner function of PRP includes ("bridging logic" in Fig. 2). In IEC 62439-3, this method is restricted to use with Ethernet: "The IEC 62439 series is applicable to high-availability automation networks based on the ISO / IEC 8802-3 (IEEE 802.3) (Ethernet) technology."
Im Folgenden soll erfindungsgemäß eine technische Realisierung mit PRP in Verbindung mit drahtlosen parallel redundanten Netzwerken beschrieben werden. Erfindungsgemäß wird nun als Neuheit eine drahtlose Variante einer„Redundancy Box" (RedBox) definiert, die anstelle von Ethernet Interfaces für die beiden parallel redundanten Netze jeweils eine drahtlose Kommunikationsschnittstelle aufweist (Fig 3). Diese Drahtlosschnittstellen können bspw. durch WLAN nach IEEE 802.1 1 realisiert werden, aber auch andere Funkstandards sind einsetzbar. In the following, according to the invention, a technical realization with PRP in connection with wireless parallel redundant networks will be described. According to the invention, a wireless variant of a "Redundancy Box" (RedBox) is now defined as having, in each case, a wireless communication interface instead of Ethernet interfaces for the two parallel redundant networks (Figure 3) .These wireless interfaces can be implemented, for example, by WLAN in accordance with IEEE 802.1 1 be realized, but also other wireless standards are used.
Diese Erfindung soll es beispielsweise ermöglichen, das in DE 10 2009 053 868 A1 beschriebene Verfahren zur sicheren drahtlosen Datenübertragung technisch umzusetzen. Dabei wird die Eigenschaft genutzt, dass mit hoher Wahrscheinlichkeit keine gleichzeitig auftretenden Übertragungsstörungen bei diversitären parallel redundanten Drahtlosverbindungen vorkommen und deshalb - im Gegensatz zu singulären drahtlosen Übertragungskanälen- die Paketverlustwahrscheinlichkeit durch ein derartiges Übertrag ungssystem derart minimiert wird, dass man von einer sicheren drahtlosen Übertragung sprechen kann. Durch die Eigenschaft des "Timing Combiner'-Verfahrens wird ausserdem eine statistische Verbesserung des Übertragungszeitverhaltens erreicht, da auf den redundanten Kanälen immer das schnellere Paket gewinnt. Fig. 4. zeigt ein beispielhaftes PRP-WLAN-System, während darauf bezogen Fig. 5. die erzielten Vorteile im Empfangszeitverhalten bei Paketverlust auf einem der redundanten Kanäle illustriert. This invention should make it possible, for example, to technically implement the method described in DE 10 2009 053 868 A1 for secure wireless data transmission. In this case, the property is used that occur with high probability no simultaneous transmission interference in diverse parallel redundant wireless connections and therefore - in contrast to singular wireless Übertragungsungskanälen- the packet loss probability is minimized by such a transfer system such that one can speak of a secure wireless transmission , The "timing combiner" feature also achieves a statistical improvement in transmission timing since the faster packet always wins on the redundant channels Figure 4 shows an exemplary PRP WLAN system while referring to Figure 5. illustrates the benefits achieved in receive timing with packet loss on one of the redundant channels.
Dieses Verfahren kann erfindungsgemäß weiter verbessert werden, indem zusätzlich zu der durch die Parallelredundanz möglichen Frequenz- und Raumdiversität die Anwendung von Zeitdiversität ermöglicht werden soll. Zeitdiversität wird erreicht, indem eines der parallel redundanten Signale zeitversetzt versendet wird. Dies kann durch ein Verzögerungselement, wie bspw. eine Warteschlange in einem der parallel redundanten Sendepfade erreicht werden (Fig.3). Der sich dadurch ergebende Vorteil liegt in der Beherrschung von breitbandigen, zeitgleichen Störungen auf allen parallel redundanten Übertragungskanälen. Durch den Zeitversatz steigt die Wahrscheinlichkeit, dass eines der parallel redundanten Pakete immer noch übertragen wird. Durch eine variabel einstellbare Verzögerungszeit kann das Splitter- Verhalten an das Funkstörverhalten angepasst werden. Diese Einstellung der Verzögerungszeit kann entweder manuell oder auch mittels eines selbstregelnden Verfahrens erfolgen, indem die Empfangsseite die Paketverlustrate auf den parallel redundanten Kanälen auswertet und mittels eines Rückkopplungsprotokolls die optimale Verzögerungszeit auf der Sendeseite einstellt. According to the invention, this method can be further improved by allowing the use of time diversity in addition to the frequency and space diversity possible through parallel redundancy. Time diversity is achieved by sending one of the parallel redundant signals with a time delay. This can be achieved by a delay element, such as a queue in one of the parallel redundant transmission paths (Figure 3). The resulting advantage lies in the mastery of broadband, simultaneous disruptions at all parallel redundant transmission channels. The skew increases the likelihood that one of the parallel redundant packets will still be transmitted. Due to a variably adjustable delay time, the splitter behavior can be adapted to the radio interference behavior. This setting of the delay time can be done either manually or by means of a self-regulating method in that the receiving side evaluates the packet loss rate on the parallel redundant channels and adjusts the optimal delay time on the transmitting side by means of a feedback protocol.
Erfindungsgemäß wird daher der Begriff„Tinning Splitter" für die Art eines Diversitäts- Splitters definiert, der Signaleinheiten über parallel redundante Übertragungsstrecken, wie bspw. drahtlose Funkübertragungsstrecken, überträgt. Kennzeichnend für den„Timing Splitter" ist, dass die Übertragung zwischen den parallel redundanten Kanälen zeitversetzt erfolgen kann. Dieser Zeitversatz kann auch einstellbar sein und mit einem im Empfangssystem vorhandenen Regelalgorithmus („Delay Control") im laufenden Betrieb eingeregelt werden (Fig. 7). According to the invention, therefore, the term "tinning splitter" is defined as the type of diversity splitter which transmits signal units over parallel redundant transmission links, such as wireless radio links can be delayed. This time offset can also be adjustable and be adjusted during operation with a control algorithm ("delay control") present in the receiving system (FIG. 7).
Dies kann bspw. durch ein Netzwerkprotokoll erfolgen, welches Steuerbefehle vom PRP-Empfänger zum PRP-Sender zurücksendet, die dort das Verzögerungsverhalten entsprechend einstellen. So kann anfänglich bspw. ohne Zeitversatz gesendet werden und wenn die Empfangsseite erhöhten Paketverlust registriert, mittels besagter Steuerbefehle auf der Sendeseite ein Zeitversatz eingestellt werden. Anschließend kann empfangsseitig die Auswirkung dieses Eingriffs auf die Paketverlustrate gemessen werden und ggf. nachgeregelt werden, womit der Regelkreis geschlossen wird. Je nach Erfordernis kann in einem oder mehreren der parallel redundanten Kanäle auf der Sendeseite ein Verzögerungsglied vorgesehen werden. This can be done, for example, by a network protocol which sends back control commands from the PRP receiver to the PRP transmitter, which there adjust the delay behavior accordingly. Thus, initially, for example, can be sent without time offset and when the receiving side registers increased packet loss, a time offset can be set by means of said control commands on the transmitting side. Subsequently, on the receiving side, the effect of this intervention on the packet loss rate can be measured and readjusted if necessary, whereby the control loop is closed. Depending on requirements, a delay element may be provided in one or more of the parallel redundant channels on the transmission side.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Verfahren zur drahtiosen Übertragung über zwei voneinander unabhängige Funkstrecken (Kanäle) von einer Datenquelle zu einer Datensenke und/oder umgekehrt, dadurch gekennzeichnet, dass die Übertragung zwischen den parallel redundanten Kanälen zeitversetzt erfolgt. 1. A method for wireless transmission over two independent radio links (channels) from a data source to a data sink and / or vice versa, characterized in that the transmission takes place between the parallel redundant channels with a time delay.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Zeitversatz einstellbar ist. 2. The method according to claim 1, characterized in that the time offset is adjustable.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der3. The method according to claim 1 or 2, characterized in that the
Zeitversatz mit einem im Empfangssystem vorhandenen Regelalgorithmus im laufenden Betrieb eingeregelt wird. Time offset is adjusted with an existing control system in the receiving system during operation.
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zusätzlich zu der durch die Parallelredundanz möglichen Frequenz- und Raumdiversität die Anwendung von Zeitdiversität realisiert wird, wobei Zeitdiversität dadurch erreicht wird , indem eines der parallel redundanten Signale zeitversetzt versendet wird. 4. The method according to any one of the preceding claims, characterized in that in addition to the possible by the parallel redundancy frequency and space diversity, the application of time diversity is realized, wherein time diversity is achieved by one of the parallel redundant signals is sent with a time delay.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das zeitversetzte Senden durch ein Verzögerungselement, wie insbesondere eine Warteschlange in einem der parallel redundanten Sendepfade, erreicht wird. 5. The method according to claim 4, characterized in that the time-shifted transmission is achieved by a delay element, in particular a queue in one of the parallel redundant transmission paths.
PCT/EP2014/060531 2013-05-24 2014-05-22 Wireless redbox comprising a timing splitter WO2014187893A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013209732.8 2013-05-24
DE102013209732 2013-05-24

Publications (1)

Publication Number Publication Date
WO2014187893A1 true WO2014187893A1 (en) 2014-11-27

Family

ID=50979724

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/060531 WO2014187893A1 (en) 2013-05-24 2014-05-22 Wireless redbox comprising a timing splitter

Country Status (2)

Country Link
DE (1) DE102014209745A1 (en)
WO (1) WO2014187893A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3211838A1 (en) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Redundant industrial communication system, method of operating same and radio transceiver station
EP3211962A1 (en) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Radio communication system for an industrial automation system, method of operating same and radio transceiver station
EP3240356A1 (en) * 2016-04-29 2017-11-01 Siemens Aktiengesellschaft Redundant industrial communication system, method of operating the same and wireless device station
EP3301523A1 (en) * 2016-09-30 2018-04-04 Siemens Aktiengesellschaft Redundant operable communications system for an industrial automation system and method of operation
EP3518471A1 (en) * 2018-01-24 2019-07-31 Siemens Aktiengesellschaft Radio communication system for an industrial automation system and method for operating a radio communication system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665395A (en) * 1967-06-29 1972-05-23 Siemens Ag Method of data transmission
WO2000011806A1 (en) * 1998-08-25 2000-03-02 Ericsson Inc. Wireless communications system employing selective diversity transmission, method for selectively enabling diversity transmission, and a wireless telecommunications network employing the system or the method
EP1359684A1 (en) * 2002-04-30 2003-11-05 Motorola Energy Systems Inc. Wireless transmission using an adaptive transmit antenna array
US20030224729A1 (en) * 2002-05-28 2003-12-04 Arnold Kenneth David Interference resistant wireless sensor and control system
WO2006053459A1 (en) 2004-11-16 2006-05-26 Abb Research Ltd Reception of redundant and non-redundant frames
DE102009053868A1 (en) 2008-11-22 2010-06-17 Hirschmann Automation And Control Gmbh Network with control unit and sensor / actuator with two redundant transmission links

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665395A (en) * 1967-06-29 1972-05-23 Siemens Ag Method of data transmission
WO2000011806A1 (en) * 1998-08-25 2000-03-02 Ericsson Inc. Wireless communications system employing selective diversity transmission, method for selectively enabling diversity transmission, and a wireless telecommunications network employing the system or the method
EP1359684A1 (en) * 2002-04-30 2003-11-05 Motorola Energy Systems Inc. Wireless transmission using an adaptive transmit antenna array
US20030224729A1 (en) * 2002-05-28 2003-12-04 Arnold Kenneth David Interference resistant wireless sensor and control system
WO2006053459A1 (en) 2004-11-16 2006-05-26 Abb Research Ltd Reception of redundant and non-redundant frames
DE102009053868A1 (en) 2008-11-22 2010-06-17 Hirschmann Automation And Control Gmbh Network with control unit and sensor / actuator with two redundant transmission links

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
D.G. BRENNAN: "Linear diversity combining techniques", PROC. IRE, vol. 47, no. 1, June 1959 (1959-06-01), pages 1075 - 1102
MARKUS RENTSCHLER ET AL: "Towards a reliable parallel redundant WLAN black channel", FACTORY COMMUNICATION SYSTEMS (WFCS), 2012 9TH IEEE INTERNATIONAL WORKSHOP ON, IEEE, 21 May 2012 (2012-05-21), pages 255 - 264, XP032204362, ISBN: 978-1-4673-0693-5, DOI: 10.1109/WFCS.2012.6242573 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108702317B (en) * 2016-02-29 2019-10-08 西门子股份公司 Industrialized communication system, the method and wireless receiving station for its operation that can redundantly run
EP3211962A1 (en) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Radio communication system for an industrial automation system, method of operating same and radio transceiver station
WO2017148626A1 (en) * 2016-02-29 2017-09-08 Siemens Aktiengesellschaft Radio communication system for an industrial automation system, method for operating said communication system, and radio transceiver station
WO2017148627A1 (en) * 2016-02-29 2017-09-08 Siemens Aktiengesellschaft Industrial communication system which can be operated redundantly, method for operating same, and wireless transceiver station
CN108702804B (en) * 2016-02-29 2020-10-27 西门子股份公司 Wireless communication system for an industrial automation system, method for the operation thereof
EP3211838A1 (en) * 2016-02-29 2017-08-30 Siemens Aktiengesellschaft Redundant industrial communication system, method of operating same and radio transceiver station
US10484238B2 (en) 2016-02-29 2019-11-19 Siemens Aktiengesellschaft Radio communication system for an industrial automation system, method for operating said radio communication system, and radio transceiver station
US10484199B2 (en) 2016-02-29 2019-11-19 Siemens Aktiengesellschaft Redundantly operable industrial communication system, method for operating the communication system, and radio transceiver station
CN108702317A (en) * 2016-02-29 2018-10-23 西门子股份公司 Industrialized communication system, the method and wireless receiving station for its operation that can redundantly run
CN108702804A (en) * 2016-02-29 2018-10-23 西门子股份公司 Wireless communication system for industrial automation system, the method and radio transceiver station for its operation
WO2017186404A1 (en) * 2016-04-29 2017-11-02 Siemens Aktiengesellschaft Redundantly operable industrial communication system, method for operation thereof and radio subscriber station
US10405185B2 (en) 2016-04-29 2019-09-03 Siemens Aktiengesellschaft Redundantly operable industrial communication system, method for operation thereof and radio subscriber station
CN109076635A (en) * 2016-04-29 2018-12-21 西门子股份公司 Can redundancy running industrial communication systems, for its operation method and radio-subscriber station
CN109076635B (en) * 2016-04-29 2020-08-21 西门子股份公司 Industrial communication system, method and radio subscriber station capable of redundant operation
EP3240356A1 (en) * 2016-04-29 2017-11-01 Siemens Aktiengesellschaft Redundant industrial communication system, method of operating the same and wireless device station
US10298726B2 (en) 2016-09-30 2019-05-21 Siemens Aktiengesellschaft Redundantly operable communication system for an industrial automation system and method for operating the system
CN107888404A (en) * 2016-09-30 2018-04-06 西门子公司 The communication system and its operation method of the energy redundancy running of industrial automation system
EP3301523A1 (en) * 2016-09-30 2018-04-04 Siemens Aktiengesellschaft Redundant operable communications system for an industrial automation system and method of operation
EP3518471A1 (en) * 2018-01-24 2019-07-31 Siemens Aktiengesellschaft Radio communication system for an industrial automation system and method for operating a radio communication system
WO2019145094A1 (en) 2018-01-24 2019-08-01 Siemens Aktiengesellschaft Radio communication system for an industrial automation system and method for operating a radio communication system
CN111656737A (en) * 2018-01-24 2020-09-11 西门子股份公司 Radio communication system for an industrial automation system and method for operating a radio communication system
US11026119B2 (en) 2018-01-24 2021-06-01 Siemens Aktiengesellschaft Radio communication system for an industrial automation system and method for operating the radio communication system

Also Published As

Publication number Publication date
DE102014209745A1 (en) 2014-12-11

Similar Documents

Publication Publication Date Title
WO2014187893A1 (en) Wireless redbox comprising a timing splitter
DE102014114680B4 (en) Return channel communication for initializing high-speed networks
EP2683102B1 (en) Device and Method for transmitting samples of a digital baseband signal
EP3055977B1 (en) Subscriber station in a bus system and method for operating a subscriber station
EP2637362B1 (en) Bus participant device for connection to a line-redundant, serial data bus and method for controlling the communication of a bus participant with a line-redundant, serial data bus
EP2688249A1 (en) Method for message transmission in a redundant industrial communication network and communication device for a redundant industrial communication network
EP3211838B1 (en) Redundant industrial communication system, method of operating same and radio transceiver station
EP2936692A1 (en) Method for redundantly and securely transferring data from a data source to a data sink
WO2011123877A1 (en) Method and device for fault-tolerant, time-controlled real-time communication
EP2759162A1 (en) Completely redundant connection and handover in cellular industrial radio networks
EP3008842B1 (en) Methods of operating a user in a communication network
EP3211962B1 (en) Radio communication system for an industrial automation system, method of operating the same and radio transceiver station
DE2628753A1 (en) DIGITAL DATA TRANSMISSION NETWORK
EP2938085B1 (en) Method and device for transmission of encoded media data
DE102005055854A1 (en) Apparatus and method for generating packets and clock signals for a packet network
WO2015031926A1 (en) Method for transmitting messages in a computer network and computer network
EP3518471B1 (en) Radio communication system for an industrial automation system and method for operating a radio communication system
DE102012209509A1 (en) Apparatus for transmitting data between mobile station and stationary receiver at global system for mobile communication (GSM) network, has stationary receiver that is redundantly connected by wire to networks
EP0898818B1 (en) Process for transmitting data
WO2018109190A1 (en) Method for optimizing the failure detection of redundancy protocols by means of test data packets
Heine et al. Designing reliable high-performance IEC61850 substation communication networks based on PRP and HSR topologies
DE102013226984A1 (en) Method for transmitting data from e.g. Internet server computer to actuator and vice-versa, involves performing transmission of data between data source and data sink under application of parallel redundancy protocol
EP2761792B1 (en) Headend station having redundancy and associated method
EP2091183B2 (en) Concatenation of several ethernet frames into one ethernet message
EP3054661B1 (en) Method for transmitting data in an IP-based telephone network

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14731557

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14731557

Country of ref document: EP

Kind code of ref document: A1