WO2000023966A1 - Verfahren zum verbreiten einer nachricht - Google Patents
Verfahren zum verbreiten einer nachricht Download PDFInfo
- Publication number
- WO2000023966A1 WO2000023966A1 PCT/EP1999/006675 EP9906675W WO0023966A1 WO 2000023966 A1 WO2000023966 A1 WO 2000023966A1 EP 9906675 W EP9906675 W EP 9906675W WO 0023966 A1 WO0023966 A1 WO 0023966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- message
- participants
- target area
- waiting time
- subscriber
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1845—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast broadcast or multicast in a specific location, e.g. geocast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/14—Mobility data transfer between corresponding nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
-
- 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
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
Definitions
- the invention relates to a method for spreading a message in an incomplete subnet of a radio communication network.
- Methods of spreading messages are used, for example, in the field of mobile, wireless communication.
- the so-called ad hoc networks are considered in particular.
- the participants join together spontaneously and at short notice.
- the arrangement of the mobile participants in the network is arbitrary and can change in space and time.
- An ad hoc network is usually a mobile, decentrally controlled radio communication network that is not complete.
- a radio network is only considered complete if there is a direct radio connection between each pair of participants.
- Each participant is equipped with a radio so that he can communicate with other participants within range.
- the participants also have local clocks that are equipped with a uniform time resolution.
- Ad hoc networks occur, for example, when mobile computers (laptops, palmtops, etc.) come together in a conference. Also several communicating robots that are in difficult to access terrain, such as in space,
- Communication facilities are equipped and worn by people on the body. This includes, for example, a device with the name “Lovegety” from the company Firma Co., Japan, which is described in the UnLite from June 3, 1998 under the heading "People” and is intended to find a suitable partner. In the future, such devices can also form ad hoc networks to solve more complex tasks.
- radio-based direct vehicle-to-vehicle communication also falls into this area of application.
- the topology of a network is generally the form of the distribution of the subscribers or network nodes and their connection to one another.
- the invention is based on the object of specifying a method for distributing a message in an incomplete radio communication network with a changing number of subscribers for forwarding the message, the Message is transmitted as quickly as possible and the participants do not necessarily have radio contact with each other at all times.
- the object is achieved by a method for spreading a message in an incomplete radio communication network with a changing number of subscribers for forwarding the message, each subscriber having a transmitter and receiver for messages and a positioning system for determining its global position, wherein
- participants determine their own position and the distance d from the sender of the message, who is also a participant, and the message with its position after a predetermined waiting time t, the waiting time t decreasing monotonically with increasing distance d send more participants.
- the method ensures an optimal distribution of messages, in particular short messages, data packets and status messages, in a radio communication network if the subscribers have no information about the network topology.
- the message is quickly transmitted by a subscriber, who acts as the sender of the message to be transmitted, to at least one other subscriber of the subnetwork, with not all subscribers necessarily having to be within range of the sender of the message.
- the method takes into account the limited knowledge of individual subscribers in the mobile decentralized radio communication network.
- the complete topology of the network need not be known to the radio communication network.
- the process optimizes message distribution, with little knowledge of Participants in the network and the actual network are required.
- a typical example from traffic engineering should clarify this: An accident involving two motor vehicles occurred on a road.
- the message about the accident is sent to at least one of the motor vehicles involved in the accident as the initiator to the environment.
- the target area for the message includes, for example, a target area with a semicircular base and a radius of approximately 10 kilometers. All vehicles that are in this target area are the target group for the message about the accident.
- the position of the recipients and the number of recipients usually change over time. Therefore, a precise knowledge of the network topology within the target area at a certain point in time does not result in any necessary information content.
- the message sent by the first subscriber preferably contains a geometric description of the target area for his message.
- the limit of the target area By defining the limit of the target area, it can be clarified in advance for which group of recipients the message to be sent results in a message that can be meaningfully used.
- the participants can use a decision function to determine whether they belong to the target area and the message only if they belong to the target area hand off.
- the participants can use a decision function to determine whether they belong to the target area and the message only if they belong to the target area hand off.
- the subscribers only forward the message received after the subscriber has received the message for the first time.
- each participant determines whether he received the message for the first time. For this purpose, the subscriber looks up a list which contains a message key via a unique assignment of the messages received so far to the respective transmitter. If the subscriber has already received the message before, he does not take any further action, since he has already forwarded the message to other subscribers at an earlier point in time. An unnecessary occupancy of the radio grain communication network is thus avoided.
- the waiting time t between reception and transmission preferably decreases exponentially with increasing distance d between the communicating participants. This configuration of the predefined waiting time t has proven to be particularly favorable in testing.
- FIG. 1 to 3 show an incomplete radio communication network 2 in a schematic representation.
- a network is said to be incomplete if there is not a direct radio connection between every participant in the network.
- the radio communication network 2 generally has a changing number of participants 4 to 12. Possible direct radio connections between two subscribers 4 to 12 are described by dashed lines 14 and arrows 16.
- Each participant 4 to 12 has a transmitting and receiving device for messages and a positioning system for determining its global position.
- a subscriber 4 sends a message into the space surrounding it, whereby its global position is also transmitted together with the message.
- the message can be emitted, for example, using an omnidirectional radiator.
- the message sent by subscriber 4 with the information about its global position is received by subscriber 6.
- the radio connections possible at time ti with the participation of subscriber 4 are shown by arrows 16.
- the message sent by subscriber 4 contains a description of the target area for his message. The limitation of However, the target area does not have to be given for all applications.
- no target area is provided, i.e. that in this case the neighboring subscriber 12 can also receive a message from subscriber 4.
- the participants 6 shown in FIG. 1 are represented by open circles for the sake of clarity.
- the constellation shown here could arise, for example, in road traffic.
- the subscriber 4 would be, for example, a motor vehicle that has broken down due to an engine failure and which hinders the oncoming road traffic.
- Subsequent motor vehicles on the same side of the road could take place in order to inform them about the existing engine damage of the participant 4.
- a formation of jams can then be avoided.
- the corresponding message should be sent automatically without driver intervention. If the participant 4 had suffered a traffic accident, for example, the driver might not be able to give up messages with his own participation.
- the participants 6 determine their own position, for example using a method on which the Global Positioning System (GPS) is based, and their distance from the participant 4.
- GPS Global Positioning System
- the message from the participant 4 with its global position is after a predetermined waiting time t, which increases with the distance d between decreases the subscriber 4, 6, forwarded by the subscribers 6 at a time t 2 with t>t> to further subscribers 8 (see FIG. 2).
- the message is only forwarded by subscriber 6 if the subscriber has received the message for the first time.
- t 2 depends on the predetermined waiting time t and thus on the distance between the participants, the case may arise that participants 6 in the vicinity of participant 4 have not yet sent the message at time t 2 .
- the neighboring subscribers 6 only send the message to other subscribers 8 at a time t 3 with t 3 > t 2 (see FIG. 3).
- the participants 6 to 10 decide with a decision function about their affiliation with the target area 20.
- the sole geometric affiliation with the target area 20 may not be sufficient, so that at least one further decision function is used to determine the target area affiliation.
- the message is passed on and in the radio communication network from subscriber 6 to 12 to subscriber 6 to 12 until all subscribers 6 to 12 have received the message.
- the message is provided with a counter which shows the number of times the message has been sent, the message being forwarded until a predetermined value for the counter reading has been reached.
- the method according to the invention ensures optimal distribution of messages, in particular short messages, data packets and status messages, in the radio communication network 2.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002347089A CA2347089A1 (en) | 1998-10-16 | 1999-09-10 | Method for disseminating a message |
US09/807,622 US6721537B1 (en) | 1998-10-16 | 1999-09-10 | Method for disseminating a message |
JP2000577635A JP4361695B2 (ja) | 1998-10-16 | 1999-09-10 | メッセージを広める方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19849294A DE19849294C2 (de) | 1998-10-16 | 1998-10-16 | Verfahren zum Verbreiten einer Nachricht |
DE19849294.4 | 1998-10-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000023966A1 true WO2000023966A1 (de) | 2000-04-27 |
Family
ID=7885665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/006675 WO2000023966A1 (de) | 1998-10-16 | 1999-09-10 | Verfahren zum verbreiten einer nachricht |
Country Status (7)
Country | Link |
---|---|
US (1) | US6721537B1 (de) |
JP (1) | JP4361695B2 (de) |
CA (1) | CA2347089A1 (de) |
DE (1) | DE19849294C2 (de) |
FR (1) | FR2786649B1 (de) |
GB (1) | GB2344723B (de) |
WO (1) | WO2000023966A1 (de) |
Cited By (2)
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DE10228890A1 (de) * | 2002-06-27 | 2004-01-22 | Daimlerchrysler Ag | Verfahren zur Steuerung des Sendezugriffes auf einen bidirektionalen Informationskanal |
WO2004114607A1 (de) * | 2003-06-20 | 2004-12-29 | Matias Campiani | Kommunikationssystem und verfahren zur herstellung von kommunikationsverbindungen |
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JP2003521714A (ja) * | 2000-02-02 | 2003-07-15 | ノキア コーポレイション | 位置計算受信機 |
EP1133115A3 (de) | 2000-03-11 | 2003-07-23 | Hewlett-Packard Company | Feststellung von Positionen mittels Mobilgeräte mit geringer Reichweite |
EP1133114A3 (de) | 2000-03-11 | 2003-07-23 | Hewlett-Packard Company | Begrenzung von Verteilung der Meldungen zwischen mobilen Einheiten |
EP1133116A3 (de) | 2000-03-11 | 2003-07-23 | Hewlett-Packard Company | Verteilung der Meldungen zwischen mobilen Einheiten |
GB0017460D0 (en) | 2000-07-18 | 2000-08-30 | Hewlett Packard Co | Message passing to a known location |
EP1174728B1 (de) | 2000-07-18 | 2008-09-24 | Hewlett-Packard Company | Verbreitung der Positionsdaten und Positionsentdeckung |
US6614393B2 (en) | 2001-01-31 | 2003-09-02 | Hewlett-Packard Development Company, L.P. | Location data dissemination and reception for entities having short-range receivers |
US7027820B2 (en) | 2001-01-31 | 2006-04-11 | Hewlett-Packard Development Company, L.P. | Location data validation by static entities receiving location data items by short-range communication |
US7307978B2 (en) * | 2001-05-01 | 2007-12-11 | Avago Technologies Enterprise Ip (Singapore) Pte Ltd | Method and system for routing packets through a network by employing geographical position data |
DE10126618B4 (de) * | 2001-05-31 | 2007-03-08 | Siemens Ag | Verfahren zum Austausch von Statusinformationen über direkte Funkverbindungen zwischen Teilnehmer-Endgeräten |
DE10130768C2 (de) * | 2001-06-26 | 2003-10-02 | Daimler Chrysler Ag | Kanalzugriffsverfahren für Adhoc-Funknetze zur Interfahrzeug-Kommunikation |
DE10131839B4 (de) * | 2001-06-30 | 2004-02-05 | Daimlerchrysler Ag | Interfahrzeug-Kommunikationsverfahren |
EP1286507A1 (de) * | 2001-08-16 | 2003-02-26 | Siemens Aktiengesellschaft | Verzögerungsfreie Übermittlung lokaler Informationen über eine Ad-Hoc-Funkverbindung |
DE10230540B4 (de) * | 2002-07-05 | 2019-08-14 | Nec Corporation | Verfahren zum Weiterleiten von Daten |
TWI226593B (en) * | 2002-10-28 | 2005-01-11 | Sin Etke Technology Co Ltd | Message transmission method among vehicles and devices thereof |
JP3772838B2 (ja) * | 2003-02-12 | 2006-05-10 | トヨタ自動車株式会社 | 車両用運転支援装置及び車両用制御装置 |
DE102004017603B4 (de) * | 2004-04-07 | 2017-08-03 | Volkswagen Ag | Übertragen von Kommunikationssignalen in einem Kommunikationsnetz mit direkter Fahrzeug-Fahrzeug-Kommunikation |
US7945276B2 (en) * | 2004-07-07 | 2011-05-17 | Siemens Aktiengesellschaft | Methods and terminal devices |
WO2006051436A1 (en) * | 2004-11-11 | 2006-05-18 | Philips Intellectual Property & Standards Gmbh | Device and method for event-triggered communication between and among a plurality of nodes |
DE102005014695B4 (de) * | 2005-03-29 | 2009-05-07 | Nec Europe Ltd. | Verfahren zur Verbreitung von Informationen an Knoten eines mobilen Ad Hoc Netzwerks |
ES2376990T3 (es) * | 2005-07-29 | 2012-03-21 | Koninklijke Philips Electronics N.V. | Sistema y método de descubrimiento de servicio dependiente del contexto para dispositivos médicos móviles |
US7466664B2 (en) * | 2005-09-02 | 2008-12-16 | Palo Alto Research Center Incorporated | Methods, apparatus, and program products for applying a visibility function to networked information |
US8711698B2 (en) | 2005-10-17 | 2014-04-29 | The Invention Science Fund I, Llc | Signal routing dependent on a loading indicator of a mobile node |
US9148907B2 (en) | 2005-09-07 | 2015-09-29 | The Invention Science Fund I, Llc | Heading-dependent routing |
US8125896B2 (en) | 2005-10-17 | 2012-02-28 | The Invention Science Fund I, Llc | Individualizing a connectivity-indicative mapping |
US8495239B2 (en) | 2005-10-17 | 2013-07-23 | The Invention Science Fund I, Llc | Using a signal route dependent on a node speed change prediction |
US7672281B1 (en) * | 2005-12-13 | 2010-03-02 | Rockwell Collins, Inc. | Method and apparatus for obtaining situational awareness information from nodes in a communications network |
US7966419B2 (en) * | 2006-07-03 | 2011-06-21 | Palo Alto Research Center Incorporated | Congestion management in an ad-hoc network based upon a predicted information utility |
US7751390B2 (en) * | 2006-07-03 | 2010-07-06 | Palo Alto Research Center Incorporated | Selection of transmission media in an ad-hoc network based upon approximate predicted information utility |
US7835351B2 (en) * | 2006-07-03 | 2010-11-16 | Palo Alto Research Center Incorporated | Selection of information for transmission and storage in an ad-hoc network based upon local synopsis exchange |
US7720060B2 (en) * | 2006-07-03 | 2010-05-18 | Palo Alto Research Center Incorporated | Information dissemination system having an information layer |
US8325718B2 (en) * | 2006-07-03 | 2012-12-04 | Palo Alto Research Center Incorporated | Derivation of a propagation specification from a predicted utility of information in a network |
US8171105B2 (en) * | 2006-07-03 | 2012-05-01 | Palo Alto Research Center Incorporated | Modification of information utility based upon context |
US8769145B2 (en) * | 2006-07-03 | 2014-07-01 | Palo Alto Research Center Incorporated | Specifying predicted utility of information in a network |
US20080002722A1 (en) * | 2006-07-03 | 2008-01-03 | Palo Alto Research Center Incorporated | Providing a propagation specification for information in a network |
ES2485393T3 (es) * | 2007-02-01 | 2014-08-13 | Nec Deutschland Gmbh | Método para diseminación de información en una red de comunicación |
FR2923116A1 (fr) | 2007-10-26 | 2009-05-01 | France Telecom | Procede de diffusion de paquets de donnees dans un reseau de noeuds mobiles et terminal associe. |
EP2571328B1 (de) * | 2010-05-12 | 2016-10-05 | Renesas Electronics Corporation | Kommunikationsvorrichtung, verfahren zur steuerung einer kommunikation zwischen fahrzeugen und system zur kommunikation zwischen fahrzeugen |
EP2437440A1 (de) | 2010-10-01 | 2012-04-04 | Koninklijke Philips Electronics N.V. | Vorrichtung und Verfahren zur Verzögerungsoptimierung von End-to-End-Datenpaketübertragungen in drahtlosen Netzwerken |
KR20130068248A (ko) * | 2011-12-15 | 2013-06-26 | 한국전자통신연구원 | 군집 로봇의 네트워크 토폴로지 구성 방법과 라우팅 방법 |
JP5405632B2 (ja) * | 2012-09-10 | 2014-02-05 | エヌイーシー ドイチュラント ゲーエムベーハー | 通信ネットワークにおける情報配信方法、通信ノードおよびその通信方法ならびに通信ネットワーク |
KR102205331B1 (ko) * | 2013-08-26 | 2021-01-19 | 콘티넨탈 테베스 아게 운트 코. 오하게 | Car2x 네트워크에서 수신된 데이터 패킷들의 프로세싱-경로-의존 필터링 |
US9363230B2 (en) | 2013-11-12 | 2016-06-07 | At&T Intellectual Property I, L.P. | System and method for scalable geographic addressing framework |
CN105577739B (zh) * | 2014-11-06 | 2018-12-18 | 中国移动通信集团公司 | 一种切换路网信息生成方法和服务器 |
DE102016103638A1 (de) | 2016-03-01 | 2017-01-19 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Zustandsbestimmung von verunfallten Verkehrsteilnehmern und Warnung weiterer Verkehrsteilnehmer via C2X-Kommunikation |
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-
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- 1999-09-10 JP JP2000577635A patent/JP4361695B2/ja not_active Expired - Fee Related
- 1999-09-10 WO PCT/EP1999/006675 patent/WO2000023966A1/de active Application Filing
- 1999-09-10 US US09/807,622 patent/US6721537B1/en not_active Expired - Fee Related
- 1999-09-10 CA CA002347089A patent/CA2347089A1/en not_active Abandoned
- 1999-10-15 FR FR9912880A patent/FR2786649B1/fr not_active Expired - Fee Related
- 1999-10-15 GB GB9924504A patent/GB2344723B/en not_active Expired - Fee Related
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10228890A1 (de) * | 2002-06-27 | 2004-01-22 | Daimlerchrysler Ag | Verfahren zur Steuerung des Sendezugriffes auf einen bidirektionalen Informationskanal |
DE10228890B4 (de) * | 2002-06-27 | 2005-02-17 | Daimlerchrysler Ag | Verfahren zur Steuerung des Sendezugriffes auf einen bidirektionalen Informationskanal |
WO2004114607A1 (de) * | 2003-06-20 | 2004-12-29 | Matias Campiani | Kommunikationssystem und verfahren zur herstellung von kommunikationsverbindungen |
Also Published As
Publication number | Publication date |
---|---|
JP4361695B2 (ja) | 2009-11-11 |
JP2003524918A (ja) | 2003-08-19 |
US6721537B1 (en) | 2004-04-13 |
DE19849294C2 (de) | 2001-09-27 |
GB9924504D0 (en) | 1999-12-15 |
CA2347089A1 (en) | 2000-04-27 |
GB2344723A (en) | 2000-06-14 |
FR2786649A1 (fr) | 2000-06-02 |
GB2344723B (en) | 2000-11-08 |
DE19849294A1 (de) | 2000-04-27 |
FR2786649B1 (fr) | 2001-05-18 |
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