WO2000060794A2 - Diversitätsverfahren zum übertragen von daten - Google Patents
Diversitätsverfahren zum übertragen von daten Download PDFInfo
- Publication number
- WO2000060794A2 WO2000060794A2 PCT/DE2000/000981 DE0000981W WO0060794A2 WO 2000060794 A2 WO2000060794 A2 WO 2000060794A2 DE 0000981 W DE0000981 W DE 0000981W WO 0060794 A2 WO0060794 A2 WO 0060794A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- transmitted
- transmission
- transmission channel
- transmitted via
- Prior art date
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
Definitions
- the present invention relates to a method according to the preamble of claim 1, i.e. a method for transmitting data, the data to be transmitted and / or data corresponding to them being transmitted via a first transmission channel and additionally via a second transmission channel.
- the data to be transmitted are simply transmitted via a transmission channel of whatever type.
- data transmissions are increasingly exposed to interference. Electromagnetic influences in particular often lead to data transmissions being disturbed. Such interference can result in the data sent and the data received not matching.
- data (data blocks) to be transmitted are transmitted repeatedly (for example twice in succession). This is illustrated by way of example in FIG. 3.
- FIG. 3 By comparing the corresponding data after the data transmission, it can be determined whether errors have occurred during the transmission; if the corresponding data are still identical after they have been transferred, it can be assumed that the data transfer has been carried out without errors.
- this type of transmission error control however, if a Written data transfer rate should or must be maintained to work with twice the data transfer rate.
- Another possibility to make data transmission more secure is that the data to be transmitted and the data inverted in this regard are transmitted simultaneously on two transmission channels.
- This is practiced, for example, in the case of data transmissions carried out according to the CAN standard or according to the TTP / C standard and is illustrated in FIG. 4.
- it can be determined by comparing the corresponding data after the data transmission whether errors have occurred during the transmission of the same.
- the data (to be compared) transmitted over the several transmission channels cannot be sampled exactly at the same time if the effort is to be kept within reasonable limits. In the case of high-frequency interference in particular, this can lead to the sample values being disturbed differently. Under certain circumstances, this can result in uncritical disturbances being regarded as serious disturbances and / or serious disturbances not being recognized.
- the present invention is therefore based on the object of finding a method for transmitting data by means of which it is possible in a simple manner to identify serious malfunctions in the data transmission, and only serious malfunctions as such.
- T ASK is achieved by the claimed that part of the patent claim 1 in the feature ⁇ feature.
- the data transmitted via the first transmission channel and the data transmitted via the second transmission channel are transmitted at different times from one another.
- the time delay of the transmission of the corresponding data can be freely selected.
- the free choice of the time offset makes it possible to set it optimally. It can be selected so that on the one hand only one of the corresponding data is affected by one and the same fault, and on the other hand that existing faults can be detected very shortly after the transmission of the data transmitted first.
- FIG. 1 shows a time diagram to illustrate the type of data transmission described in more detail below
- FIG. 2 shows the basic structure of devices for generating and checking data transmitted during data transmissions of the type illustrated in FIG. 1
- FIG. 3 shows a time diagram to illustrate a data transmission in which data are transmitted repeatedly via the same transmission channel
- FIG. 4 shows a time diagram to illustrate a data transmission in which data and, in contrast, inverted data are transmitted simultaneously over two transmission channels.
- the method for transmitting data which is considered in more detail here, is intended in particular for applications in which particularly secure data transmission is important. Such applications are, for example, but of course by no means exclusively, the control of the anti-lock braking system or the airbag of a motor vehicle.
- the method is not subject to any restrictions with regard to the length and type of the transmission channels.
- the Ü be bertragungskanale, electrical or optical conductors, radio channels or other transmission channels.
- the data transmission takes place via two transmission channels. These two transmission channels are designated CHA and CHB in FIGS. 1 and 2.
- the data to be transmitted are transmitted twice, once inverted via the first transmission channel CHA, and once not inverted and delayed via the second transmission channel CHB. This is shown by way of example in FIG. 1.
- time-shifted means that the data transmitted via the second transmission channel CHB are transmitted later than the data transmitted via the first transmission channel.
- this can also be the other way round: the non-inverted data can also be transmitted before the inverted data.
- the data transmitted via the second transmission channel CHB are transmitted one clock period TP after the data transmitted via the first transmission channel CHA.
- This time difference can be determined differently, both in terms of size and sign.
- the probability that the Corresponding data are influenced by different faults is extremely low, since faults generally only occur very rarely (otherwise the system would be unusable). If both of the data corresponding to one another are disturbed (by the same or different faults), this can lead to the faults being canceled when the data corresponding to one another are compared for error detection and not being recognized.
- the probability that existing faults in the corresponding data stream sections cancels out when the corresponding data are compared for error detection can be eliminated reduce a relatively short time delay in the transmission of the corresponding data to a minimum.
- FIG. 2 A possible construction of devices for generating and checking the data to be transmitted or transmitted via the transmission channels is illustrated in FIG. 2.
- the device (provided on the transmission side) for generating the data to be transmitted via the transmission channels CHA and CHB is designated m in FIG. 2 by the reference symbol S.
- the device (on the receiving side, i.e. provided at the other end of the transmission channels CHA and CHB) for checking the data transmitted via the transmission channels CHA and CHB is designated by the reference symbol E in FIG.
- the (data generation) device S contains an inverter I and a delay element V, which can be formed, for example, by a FIFO memory. It receives the data D to be transmitted as an input signal and uses it to generate a first data stream output on the first transmission channel CHA and a second data stream output on the second transmission channel CHB. To generate the first data stream (which is output to the first transmission channel CHA), the input data D are inverted by the inverter I. The data transmitted via the first transmission channel CHA are therefore the inverse of the data D actually to be transmitted.
- the input data D is delayed by the delay element V.
- the delay is chosen such that the data output on the second transmission channel CHB is output on the first transmission channel CHA a predetermined time later than the data corresponding to these. It must be taken into account here that the generation of the data to be output on the first transmission channel CHA (the inversion of the data D by the inverter I) also takes a certain time.
- the data transmitted via the second transmission channel CHB are the data D that are actually to be transmitted but are transmitted with a delay.
- the delay element V could possibly be dispensed with; Even without this delay element, corresponding data would be sent to the transmission channels CHA and CHB at different times.
- the delay element V can also be used to delay the data to be output on the first transmission channel CHA. Then the data D actually to be transmitted would be transmitted via the second transmission channel CHB, and the data inverted and delayed in contrast would be transmitted via the first transmission channel CHA.
- the (data verification) device E is complementary to the (data generation) device S; she processed ü over the first transmission channel CHA data received as processed data to be transmitted D for output to the second transmission channel CHB, and processes through the second transmission channel CHB received data as the processed data to be transmitted D for output to the first transmission channel CHA were. Accordingly, it also contains an inverter I and a delay element V, the delay element V delaying the data received via the first transmission channel CHA, and inverting the data obtained via the second transmission channel CHB.
- the data generated and output by the delay element V and the data generated and output by the inverter I had to be the same if the data transmission over both transmission channels was error-free; If the transmission of the data transmitted via the first transmission channel CHA or the transmission of the data transmitted via the second transmission channel CHB was disrupted, the data from the delay element V and the data output by the inverter I differ.
- a comparator C checks whether the data output by the delay element V and the data output by the inverter I are the same.
- the comparator C determines that the data to be compared are not the same, this means that the first transmission channel CHA and / or the second transmission channel CHB were disturbed during the transmission of this data, and consequently the data to be compared was not can be regarded as error-free. These data are preferably not used any further.
- the data to be transmitted itself are transmitted via one of the transmission channels, and inverted data are transmitted via the other transmission channel.
- this variant currently appears to be the simplest and most effective, there is no restriction to this. In principle, any number of differently coded data can be transmitted via the various transmission channels. It is not necessary for the data to be transmitted to be transmitted via one of the transmission channels.
- the same data can also be transmitted via the various transmission channels, the number of which can also be arbitrarily larger than two, whereby this data can be the data to be transmitted itself or data corresponding to them.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00929271A EP1163754A2 (de) | 1999-03-31 | 2000-03-31 | Diversitätsverfahren zum übertragen von daten |
US09/968,451 US7245667B2 (en) | 1999-03-31 | 2001-10-01 | Method of transmitting data |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914742A DE19914742A1 (de) | 1999-03-31 | 1999-03-31 | Verfahren zum Übertragen von Daten |
DE19914742.6 | 1999-03-31 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/968,451 Continuation US7245667B2 (en) | 1999-03-31 | 2001-10-01 | Method of transmitting data |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000060794A2 true WO2000060794A2 (de) | 2000-10-12 |
WO2000060794A3 WO2000060794A3 (de) | 2000-12-28 |
Family
ID=7903168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/000981 WO2000060794A2 (de) | 1999-03-31 | 2000-03-31 | Diversitätsverfahren zum übertragen von daten |
Country Status (4)
Country | Link |
---|---|
US (1) | US7245667B2 (de) |
EP (1) | EP1163754A2 (de) |
DE (1) | DE19914742A1 (de) |
WO (1) | WO2000060794A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7887838B2 (en) | 2002-01-18 | 2011-02-15 | Banner Pharmacaps, Inc. | Non-gelatin film and method and apparatus for producing same |
US7408913B2 (en) * | 2003-05-12 | 2008-08-05 | Lucent Technologies Inc. | Method of real time hybrid ARQ |
DE102007003187A1 (de) * | 2007-01-22 | 2008-10-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines zu sendenden Signals oder eines decodierten Signals |
US20100032167A1 (en) * | 2008-08-08 | 2010-02-11 | Adam Mark K | Method for Making Wellbore that Maintains a Minimum Drift |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3836206A1 (de) * | 1988-10-24 | 1990-04-26 | Siemens Ag | Verfahren zum codieren und pruefen von informationen fuer sicherungstechnische uebertragungen und einrichtung zum durchfuehren des verfahrens |
GB2237706A (en) * | 1989-11-03 | 1991-05-08 | Racal Res Ltd | Radio communications link with diversity |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH474923A (de) * | 1967-06-29 | 1969-06-30 | Siemens Ag | Verfahren zur einseitig gerichteten Datenübertragung über störanfällige Nachrichten-verbindungen und Rekonstruktion der gestörten Bits |
NL166591C (nl) * | 1971-05-18 | 1981-08-17 | Philips Nv | Foutencorrigerend datatransmissiestelsel. |
US4011542A (en) * | 1973-05-29 | 1977-03-08 | Trw Inc. | Redundant data transmission system |
FR2427747A1 (fr) * | 1978-05-31 | 1979-12-28 | Materiel Telephonique | Recepteur de signaux d'horloge et de signaux auxiliaires transmis simultanement |
US4245344A (en) * | 1979-04-02 | 1981-01-13 | Rockwell International Corporation | Processing system with dual buses |
US4298982A (en) * | 1980-06-03 | 1981-11-03 | Rca Corporation | Fault-tolerant interface circuit for parallel digital bus |
US4447903A (en) * | 1981-05-22 | 1984-05-08 | Ael Microtel, Ltd. | Forward error correction using coding and redundant transmission |
US5051991A (en) * | 1984-10-17 | 1991-09-24 | Ericsson Ge Mobile Communications Inc. | Method and apparatus for efficient digital time delay compensation in compressed bandwidth signal processing |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
JPS6370632A (ja) * | 1986-09-11 | 1988-03-30 | Nec Corp | 回線切替方式 |
DE69229518T2 (de) * | 1991-02-26 | 2000-04-13 | Denso Corp | Kommunikationseinrichtung mit Fehlertoleranz |
FR2675971B1 (fr) * | 1991-04-23 | 1993-08-06 | France Telecom | Procede de codage correcteur d'erreurs a au moins deux codages convolutifs systematiques en parallele, procede de decodage iteratif, module de decodage et decodeur correspondants. |
EP0823818B1 (de) * | 1991-08-13 | 2002-01-09 | Canon Kabushiki Kaisha | Bildübertragungsvorrichtung |
US5422929A (en) * | 1991-11-13 | 1995-06-06 | Txport, Inc. | Telephone line repeater and method of testing same |
EP0580938B1 (de) * | 1992-06-26 | 2001-09-26 | Yokogawa Electric Corporation | Steuerungsgerät für Duplex-Kommunikation |
JPH06232826A (ja) * | 1993-02-08 | 1994-08-19 | Hitachi Ltd | 音声差分pcmデータ伸長方法 |
US5386424A (en) * | 1993-03-31 | 1995-01-31 | Honeywell, Inc. | Apparatus and method for transmitting information between dual redundant components utilizing four signal paths |
FI109737B (fi) * | 1993-08-25 | 2002-09-30 | Nokia Corp | Menetelmä ja järjestelmä digitaalisen siirtolaitteen kantataajuisten vastaanottimien pääkanavien varmennusohjauksen suorittamiseksi |
JP3294737B2 (ja) * | 1994-10-13 | 2002-06-24 | ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 位置測定装置 |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
KR100235842B1 (ko) * | 1997-08-28 | 1999-12-15 | 윤종용 | 데이터 송/수신 회로 및 그 방법 |
US6178317B1 (en) * | 1997-10-09 | 2001-01-23 | Ibiquity Digital Corporation | System and method for mitigating intermittent interruptions in an audio radio broadcast system |
DE19850672C2 (de) * | 1998-11-03 | 2003-07-31 | St Microelectronics Gmbh | Leitungsfehlerprüfschaltung für ein elektrisches Datenübertragungssystem |
EP1441559A3 (de) * | 2000-12-08 | 2004-09-22 | Motorola, Inc. | Kanalzuweisung in einem Kommunikationssystem |
US7020821B2 (en) * | 2001-02-22 | 2006-03-28 | Lucent Technologies Inc. | Redundant packet telecommunication network system using minimum hamming distances to construct a final estimate of a original codeword |
US6526031B1 (en) * | 2001-06-21 | 2003-02-25 | Motorola, Inc. | Forward power control determination in spread spectrum communications systems |
US6862434B2 (en) * | 2002-07-26 | 2005-03-01 | Qualcomm Inc. | Transmission diversity systems |
KR100944175B1 (ko) * | 2002-11-22 | 2010-02-26 | 인터디지탈 테크날러지 코포레이션 | 복소 가중치 생성(cwg) 알고리즘을 이용한 레이크 수신기에서의 채널 이득 추정 |
-
1999
- 1999-03-31 DE DE19914742A patent/DE19914742A1/de not_active Withdrawn
-
2000
- 2000-03-31 WO PCT/DE2000/000981 patent/WO2000060794A2/de not_active Application Discontinuation
- 2000-03-31 EP EP00929271A patent/EP1163754A2/de not_active Ceased
-
2001
- 2001-10-01 US US09/968,451 patent/US7245667B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3836206A1 (de) * | 1988-10-24 | 1990-04-26 | Siemens Ag | Verfahren zum codieren und pruefen von informationen fuer sicherungstechnische uebertragungen und einrichtung zum durchfuehren des verfahrens |
GB2237706A (en) * | 1989-11-03 | 1991-05-08 | Racal Res Ltd | Radio communications link with diversity |
Non-Patent Citations (2)
Title |
---|
BENELLI G: "TWO NEW CODING TECHNIQUES FOR DIVERSITY COMMUNICATION SYSTEMS" IEEE TRANSACTIONS ON COMMUNICATIONS,US,IEEE INC. NEW YORK, Bd. 38, Nr. 9, 1. September 1990 (1990-09-01), Seiten 1530-1538, XP000173221 ISSN: 0090-6778 * |
See also references of EP1163754A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE19914742A1 (de) | 2000-10-12 |
WO2000060794A3 (de) | 2000-12-28 |
EP1163754A2 (de) | 2001-12-19 |
US20020085487A1 (en) | 2002-07-04 |
US7245667B2 (en) | 2007-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2160857B1 (de) | Prüfverfahren und elektronische schaltung zur sicheren seriellen übertragung von daten | |
EP1878166B1 (de) | Verfahren und vorrichtung zum dekodieren eines signals | |
DE19733748A1 (de) | Datenübertragungsvorrichtung | |
DE2342009A1 (de) | Pruefsystem und -verfahren | |
DE19736434A1 (de) | Verfahren und Vorrichtungen zur Erkennung der Position von in einem seriellen Datenempfangsstrom liegenden Datenpaketen | |
EP1994700A1 (de) | Verfahren und system zur kompensation asymmetrischer verzögerungen | |
EP3189630A1 (de) | Verfahren zur seriellen übertragung eines rahmens über ein bussystem von einem sender zu mindestens einem empfänger und teilnehmerstation für ein bussystem | |
DE102007016917A1 (de) | Verfahren sowie System zur sicheren Übertragung von zyklischen zu übertragenden Prozessdaten | |
EP1164751B1 (de) | Verfahren zum schnellen und fehlerfreien Übertragen von Daten auf einem Bus | |
DE19525761C2 (de) | Synchronisations-Erfassungsschaltung | |
WO2000060794A2 (de) | Diversitätsverfahren zum übertragen von daten | |
DE3103574C2 (de) | Schaltungsanordnung zum Herstellen und Aufrechterhalten des Gleichlaufs zwischen von örtlich erzeugten Bittaktimpulsen abgeleiteten Envelopetaktimpulsen und in Envelopes eines binärcodierten Signals enthaltenen Synchronisierbits | |
DE10141040B4 (de) | Serielle Schnittstelleneinheit | |
EP2338248B1 (de) | Verfahren zum betreiben eines kommunikationssystems mit mehreren knoten und kommunikationssystem dafür | |
EP1069690A2 (de) | Verfahren zur Abtastung biphase codierter digitaler Signale | |
DE1186098B (de) | Verfahren und Schaltungsanordnung zur Fehlererkennung fuer in Seriendarstellung uebertragene Impulse | |
WO2019121779A1 (de) | Teilnehmerstation für ein serielles kommunikationsnetzwerk und verfahren zur korrektur von einzelfehlern in einer nachricht eines seriellen kommunikationsnetzwerks | |
EP0849122A2 (de) | Verfahren zur Übertragung digitaler Daten | |
DE19948598B4 (de) | Mikrocomputer mit Abtastfunktion eines Wiederholungs-Anforderungssignals in Synchronisation mit einem Abtastsignal | |
DE102017223774A1 (de) | Teilnehmerstation für ein serielles Bussystem und Verfahren zur Fehlersignalisierung für eine in einem seriellen Bussystem empfangene Nachricht | |
DE102008049662A1 (de) | Verfahren und Vorrichtung zum Prüfen einer asynchronen Übertragung von Steuersignalen | |
DE10161631B4 (de) | Verfahren zur Korrektur des Beginns der Abtastung einer seriellen Bitfolge eines Ausgangssignals eines Filters | |
DE2609244C2 (de) | Schaltungsanordnung zum Vermeiden des Verlustes von Datenworten beim Einphasen einer Datenübertragungseinrichtung | |
EP0944962A1 (de) | Verfahren und schaltungsanordnung zur decodierung eines zyklisch codierten signals | |
DE19923327C2 (de) | Verfahren zur seriellen Übertragung digitaler Daten |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): CN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): CN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000929271 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09968451 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000929271 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWR | Wipo information: refused in national office |
Ref document number: 2000929271 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000929271 Country of ref document: EP |