EP1683299A1 - Method for notifying the modification of the state of network resources for at least one application, a computer program and a system for notifying the state modification for carrying out said method - Google Patents
Method for notifying the modification of the state of network resources for at least one application, a computer program and a system for notifying the state modification for carrying out said methodInfo
- Publication number
- EP1683299A1 EP1683299A1 EP04805351A EP04805351A EP1683299A1 EP 1683299 A1 EP1683299 A1 EP 1683299A1 EP 04805351 A EP04805351 A EP 04805351A EP 04805351 A EP04805351 A EP 04805351A EP 1683299 A1 EP1683299 A1 EP 1683299A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- network
- application
- notification
- state
- changes
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
-
- 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
Definitions
- the present invention relates to a method for notifying changes in the state of resources of a network, intended for at least one application suitable for running on this network.
- the invention also relates to a computer program and a system for notifying state changes for implementing this method.
- This type of process is generally implemented for applications sensitive to changes in the state of the network on which they are running.
- These software applications generally perform vital network services, including the discovery of network resources (JINI ® , UpnP ® , Salutation ® , SLP applications), quality of service management, or group management (HORUS system). ® ).
- Changes in the state of the network which may be of interest to these applications include, for example, the disappearance, the reappearance of a network node, the movement of a node within the network, as well as quality of service information such as capacity changes of links or nodes crossed (bandwidth, computing capacity, batteries, etc.).
- a process of the aforementioned type is already known in the prior art.
- a service directory called “Loo up Server” maintains a list of available application servers on the network, using a refresh process (commonly called “leasing” mechanism ). According to this refresh process, the application servers must periodically renew their subscription to the directory of services by signaling that they are still operational, otherwise they are automatically deleted from the list.
- the lower this time interval the more bandwidth occupied to convey this information in the ad-hoc network, which is problematic for a network in which this resource is limited.
- information exchanges must be regularly conveyed through the ad-hoc network between the nodes of this network, in order to keep up to date the information concerning the group managed by the application. This information also generates an additional flow through the ad-hoc network whose bandwidth is limited.
- QoS-sensitive applications such as multimedia applications, information on the capabilities of links and nodes traversed must be exchanged between nodes to identify and monitor paths that meet the QoS conditions required by the applications. .
- State changes can occur during the mobility of a node, when using a node other than to transmit data from other nodes, or when a node goes into energy saving mode .
- changes can have an impact on the quality of service negotiated with the applications, it is preferable that these applications be notified before they detect it themselves so as not to degrade the quality of service or interrupt the service.
- the invention aims to remedy these drawbacks by providing a method of notification of changes of state capable of providing the applications adapted to run on a network with information on the changes of state of this network, by limiting as much as possible. possible the additional cost due to the transmission of this information in the network.
- the invention thus aims to provide a notification method particularly suitable for ad-hoc type networks.
- the subject of the invention is therefore a method of notification of changes in the state of the resources of a network, intended for at least one application suitable for running on this network, characterized in that it comprises the following steps : - extraction of routing information by means of notification of changes of state with which the application has been previously registered; - Transmission of this routing information extracted by the notification means, bound for the application.
- the routing protocols implemented in any network, and in particular in ad-hoc networks generate traffic making it possible to know the state of the network and to update the information concerning this state.
- This information can concern a change in bandwidth, due to radio interference between several co-located nodes, or a change in the routing capacities of a node crossed, due to the use of this node to carry out application processing or to a saving of use of this node to reduce its energy consumption when running on battery.
- the invention therefore makes it possible to use this routing information to transmit it to the applications suitable for running on the network, without these applications needing to verify for themselves the state of the nodes of the network with which they communicate when they are executed.
- conventional cooling mechanisms can be replaced by transmission of at least part of the routing information to interested applications.
- the routing information of the network can provide information on the state of the group and can therefore be transmitted, without additional cost in the network and with a simplification of the applications adapted to run on the network.
- the information on changes of network states transmitted to the application allows it to adapt, for example to redefine its quality of service contract.
- the invention therefore makes it possible to extract information generally exchanged at levels of the network responsible for routing the information conveyed, in order to transmit it to higher levels in which the executions of the applications themselves are managed.
- a method of notification of changes of state can also include one or more of the following characteristics: - during the prior recording step, part of the nodes and / or links of the network are selected so that the information extracted and transmitted to this application is routing information concerning this part of the selected nodes and / or links; the network is an ad-hoc network, and the routing information is extracted by interrogating a routing protocol implemented in the ad-hoc network; - the routing information is extracted from routing tables exchanged by a proactive routing protocol of the ad-hoc network, in particular the OLSR protocol; and the method further comprises a step of dynamic extension of the notification means during which, new routing information is deployed on the network, new corresponding extraction rules are introduced in the notification means.
- An advantage of the OLSR protocol is that it effectively allows such a dynamic extension of the means of notification.
- a packet exchanged between two routers can not only convey data but also programs. This process can, for example, be carried out using the JAVA ® code download technology called OSGi ® .
- the invention also relates to a computer program for the notification of changes of state of the resources of a network, intended for at least one application suitable for running on this network, characterized in that, the application having been previously registered with the computer program, it includes means for extracting routing information and means for transmitting this extracted information to the application.
- the invention also relates to a system for notification of changes in the state of resources of a network, comprising the network and at least one application adapted to run on this network, characterized in that it includes a program for computer as described above, installed on at least one of the network nodes.
- a system for notification of changes in the state of resources of a network comprising the network and at least one application adapted to run on this network, characterized in that it includes a program for computer as described above, installed on at least one of the network nodes.
- An ad-hoc network consists of mobile or fixed nodes having the property of automatically and dynamically constituting a network capable of forwarding packets from any point of the network to another as soon as a radio communication is established between each knot and its neighbors.
- Each node 12, 14 is an electronic device capable of communicating a priori with the other nodes of the network, if these are connected either directly or indirectly (for example by neighborly relations close to close) to this device.
- the nodes of the ad-hoc network are made up of devices such as a personal digital assistant, a mobile phone, a wireless microcomputer, etc.
- each device 12, 14 is provided with routing applications conforming to a common protocol 12b, network layer or transport in the OSI system, for the routing of data in the ad network. -hoc.
- This protocol is for example the proactive OLSR protocol, which is suitable for the periodic exchange of routing tables between the nodes of the network.
- each node of the ad-hoc network also fulfills a router function for the transmission of information from one point to another on the network.
- each of the nodes 12, 14 of the ad-hoc network 10 optionally includes applications that conform to a protocol 12a, 14a of application layer in the OSI system, using for example the JINI ® technology.
- the ad-hoc network 10 comprises a particular node 14, fulfilling a function of application management server.
- the server 14 comprises, in addition to routing applications conforming to the common protocol 14b of the network or transport layer and applications conforming to the protocol 14a of the application layer, notification means 14c intermediate between these applications.
- the notification means 14c serve to retrieve routing information exchanged by routing applications (eg routing tables OLSR) to transmit to JINI ® applications that were previously recorded. They thus notify the applications concerned of changes in the state of the resources of the ad-hoc network.
- routing applications eg routing tables OLSR
- the application management server 14 comprises applications conforming to a common physical layer protocol 14d for the exchange of data between this server and the other nodes of the ad-hoc network 10.
- the functions routing devices conforming to the protocol 14b of the application server 14 include means 16 for filtering events from layer 14d, to supply a portion of these events, in particular those relating to routing, to analysis means 18. These events are processed by the analysis means 18 so that they transmit them in the form of topology change information to means 20 for updating the topology of the ad-hoc network 10.
- the way in which the filtering means 16, analysis 18 and updating means 20 operate and interact is conventional. It will therefore not be detailed.
- the means 20 for updating the topology of the ad-hoc network 10 can also extract part of the events directly from the layer 14d.
- 14c notification means are implemented as an intermediary between the Routing applications of layer 14b and JINI ® applications of the layer 14a.
- These notification means 14c comprise first means 22 for extracting routing information from the means for updating the topology of the network 20.
- the routing information is extracted directly from the OLSR routing tables in the case of this exemplary embodiment.
- the OLSR protocol also allows a dynamic extension of the notification means 14c during which, new routing information being deployed on the network 10, new corresponding extraction rules are introduced into the notification means.
- the information extracted by the means 22 is then transmitted to means 24 for transmitting this information to different applications having previously registered with the notification means 14c.
- each of the JINI ® applications layer 14a interested in receiving notifications of events registers with the transmission means 24, for indicate the type of information which interests him, that is to say in particular the information concerning the nodes of the network likely to have an influence on the implementation of the application considered.
- This information extracted by the extraction means 22 is obtained either directly from the routing tables as indicated above, when proactive protocols such as the OLSR protocol are implemented, or using specific interfaces created for interrogate the routing protocols implemented by the ad-hoc network, in particular for example in the case of reactive routing protocols.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312869A FR2861864A1 (en) | 2003-11-03 | 2003-11-03 | METHOD FOR NOTIFYING CHANGES IN STATUS OF NETWORK RESOURCES FOR AT LEAST ONE APPLICATION, COMPUTER PROGRAM, AND STATE CHANGE NOTIFICATION SYSTEM FOR IMPLEMENTING SAID METHOD |
PCT/FR2004/002798 WO2005046121A1 (en) | 2003-11-03 | 2004-10-29 | Method for notifying the modification of the state of network resources for at least one application, a computer program and a system for notifying the state modification for carrying out said method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1683299A1 true EP1683299A1 (en) | 2006-07-26 |
Family
ID=34429842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04805351A Withdrawn EP1683299A1 (en) | 2003-11-03 | 2004-10-29 | Method for notifying the modification of the state of network resources for at least one application, a computer program and a system for notifying the state modification for carrying out said method |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070070912A1 (en) |
EP (1) | EP1683299A1 (en) |
CN (1) | CN1902854A (en) |
FR (1) | FR2861864A1 (en) |
WO (1) | WO2005046121A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9081633B2 (en) * | 2010-05-24 | 2015-07-14 | Microsoft Technology Licensing, Llc | Remote application connection sharing |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5109486A (en) * | 1989-01-06 | 1992-04-28 | Motorola, Inc. | Distributed computer system with network and resource status monitoring |
US5412654A (en) * | 1994-01-10 | 1995-05-02 | International Business Machines Corporation | Highly dynamic destination-sequenced destination vector routing for mobile computers |
US6185611B1 (en) * | 1998-03-20 | 2001-02-06 | Sun Microsystem, Inc. | Dynamic lookup service in a distributed system |
US6604127B2 (en) * | 1998-03-20 | 2003-08-05 | Brian T. Murphy | Dynamic lookup service in distributed system |
AU3297199A (en) * | 1998-02-26 | 1999-09-15 | Sun Microsystems, Inc. | Dynamic lookup service in a distributed system |
US6845393B1 (en) * | 1999-06-14 | 2005-01-18 | Sun Microsystems, Inc. | Lookup discovery service in a distributed system having a plurality of lookup services each with associated characteristics and services |
FI20002402A (en) * | 2000-11-01 | 2002-05-02 | Nokia Corp | Configuration control in a distributed environment |
US20030046394A1 (en) * | 2000-11-03 | 2003-03-06 | Steve Goddard | System and method for an application space server cluster |
US20030093471A1 (en) * | 2001-10-18 | 2003-05-15 | Mitch Upton | System and method using asynchronous messaging for application integration |
US6754192B2 (en) * | 2002-04-29 | 2004-06-22 | Harris Corporation | Temporal transition network protocol (TTNP) in a mobile ad hoc network |
US7283466B1 (en) * | 2002-10-25 | 2007-10-16 | Ciena Corporation | Tracking physical route changes in optical switching network |
US20040121792A1 (en) * | 2002-12-18 | 2004-06-24 | Allen Vernon A. | Multi-protocol network and method of switching protocols |
US20040125776A1 (en) * | 2002-12-26 | 2004-07-01 | Haugli Hans C. | Peer-to-peer wireless data communication system with progressive dynamic routing |
US20040186883A1 (en) * | 2003-03-19 | 2004-09-23 | Nyman Kai T. | Method and apparatus for interfacing web services with mobile terminal applications during a browser or SIP session |
-
2003
- 2003-11-03 FR FR0312869A patent/FR2861864A1/en active Pending
-
2004
- 2004-10-29 CN CNA200480039735XA patent/CN1902854A/en active Pending
- 2004-10-29 WO PCT/FR2004/002798 patent/WO2005046121A1/en active Application Filing
- 2004-10-29 US US10/578,101 patent/US20070070912A1/en not_active Abandoned
- 2004-10-29 EP EP04805351A patent/EP1683299A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2005046121A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2861864A1 (en) | 2005-05-06 |
US20070070912A1 (en) | 2007-03-29 |
CN1902854A (en) | 2007-01-24 |
WO2005046121A1 (en) | 2005-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3427449B1 (en) | Selection of a network slice instantiation for transmitting uplink packets | |
EP1817880A1 (en) | Method and system for the dynamic adaptation of service quality metrics in an ad hoc network | |
FR3015835A1 (en) | METHOD FOR DIAGNOSING SERVICE FUNCTIONS IN AN IP NETWORK | |
FR2832895A1 (en) | Internet communication network access point authorization having network processing mobile transmitter/receiver mobility/identifying access point conditions/selecting appropriate access point. | |
EP2502384B1 (en) | Method and system for distributing content with guarantees of delivery timescales in hybrid radio networks | |
WO2007125229A1 (en) | Radio resource management in a radio telecommunication network | |
CN102257792B (en) | Method for content delivery involving a policy database | |
Capra et al. | Q-CAD: QoS and context aware discovery framework for mobile systems | |
EP2070276B1 (en) | Method for evaluating the reliability of a route in a cooperative network | |
WO2008025925A1 (en) | Method of routing data in a network comprising nodes organized in groups | |
EP2341728B1 (en) | System and method for controlling communications in a mobile ad-hoc network | |
EP3657859B1 (en) | Optimizing data exchange between connected objected by type of message | |
EP1518429A1 (en) | Method for supplying service configuration data to a mobile telephone device, by a computerized terminal | |
EP1683299A1 (en) | Method for notifying the modification of the state of network resources for at least one application, a computer program and a system for notifying the state modification for carrying out said method | |
EP3675463B1 (en) | Method for identifying a connected object in a network infrastructure | |
EP2232816B1 (en) | Management of a communication in a heterogeneous network | |
EP3675435A1 (en) | Method for dynamic routing in a network of connected objects | |
EP2399406B1 (en) | Method for switching an access node | |
EP2206384B1 (en) | Access node switching method | |
EP1652346B1 (en) | Method of locating mobile communicating objects within a communications network | |
WO2007012732A2 (en) | Method for allocating a temporary address to a mobile node of a telecommunication system, equipment and programmes for implementing same | |
Chafi et al. | Dynamic management of bridge within internet of things system based on multi agent concept | |
FR3095913A1 (en) | Method for identifying a connected object in a network infrastructure | |
FR3095914A1 (en) | Method of dynamic routing in a network of connected objects | |
WO2024002868A1 (en) | Provision and collection methods, base station, data collection and analysis device, and system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060530 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MATHIEU, BERTRAND Inventor name: GOURHANT, YVON Inventor name: MEDDOUR, DJAMAL-EDDINE |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20080117 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120503 |