WO2005071896A1 - Gestion des etranglements de capacite dans des reseaux numeriques - Google Patents

Gestion des etranglements de capacite dans des reseaux numeriques Download PDF

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Publication number
WO2005071896A1
WO2005071896A1 PCT/IB2005/050168 IB2005050168W WO2005071896A1 WO 2005071896 A1 WO2005071896 A1 WO 2005071896A1 IB 2005050168 W IB2005050168 W IB 2005050168W WO 2005071896 A1 WO2005071896 A1 WO 2005071896A1
Authority
WO
WIPO (PCT)
Prior art keywords
priority
applications
stream
user
quality
Prior art date
Application number
PCT/IB2005/050168
Other languages
English (en)
Inventor
Markus Baumeister
Original Assignee
Philips Intellectual Property & Standards Gmbh
Koninklijke Philips Electronics N. V.
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 Philips Intellectual Property & Standards Gmbh, Koninklijke Philips Electronics N. V. filed Critical Philips Intellectual Property & Standards Gmbh
Priority to JP2006550389A priority Critical patent/JP2007523533A/ja
Priority to EP05702678A priority patent/EP1712042A1/fr
Publication of WO2005071896A1 publication Critical patent/WO2005071896A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
    • H04L12/2821—Avoiding conflicts related to the use of home appliances
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2845—Telephone line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances

Definitions

  • the invention relates to a method of handling capacity bottlenecks in digital networks, particularly digital home networks, in which at least two appliances or applications with public interfaces for influencing the internal resource allocation in a system have access to the resources of a data transfer medium having a non-constant bandwidth.
  • Information is processed with an increasing digitization and linking of processing media.
  • the associated networks are referred to as digital home networks (IHDN: in-home digital network).
  • IHDN in-home digital network
  • Televisions, radio, monitors, loudspeakers, cameras, printers, scanners, PCs, telephone services, speech recognition systems, home appliance controls, security devices and the like may be integrated in such an IHDN.
  • Prioritisation of data streams in dependence upon the type of transported information has been known for a long time, as well as the prioritisation by means of a simple description of the requirements of a data stream (for example, the TOS bits in IP).
  • This method is, however, unsuitable for prioritisation of data streams of the same type (such as, for example, video and audio) occuring typically in digital home networks.
  • Traffic shaping and control algorithms allow the prioritisation of their queues (for example, the CBQ, HTB and PRIO disciplines of Linux traffic control mechanisms). This method is particularly suitable for implementing stream priorities, but not for fixing them.
  • Several methods are proposed for data stream transmission on the Internet, using prioritisation. In the method of the standardized "Differentiated Services", different service classes are allocated to data packets and obtain resources in conformity with these classes. Different classes may have different priorities. It is, however, not specified in accordance with which criteria classes are allocated to packets. Furthermore there is only a statistically predefined number of classes. All of these systems use either priorities predetermined by applications or even fixed priority classes.
  • the proposed method is used for handling capacity bottlenecks in digital networks, particularly digital home networks, in which at least two appliances or applications with public interfaces for influencing the internal resource allocation in a system have access to the resources of a data transfer medium having a non-constant bandwidth.
  • capacity bottlenecks particularly occur when systems without bandwidth guarantee, particularly wireless systems, are affected by external influences such as, for example, domestic appliances.
  • the participating applications are given priorities on the basis of their user-subjective quality requirements, wherein the data stream whose allocated application probably has the lowest quality requirements from the user's point of view is the first to be reduced.
  • streams to which little or no attention is paid such as, for example, a television which is operative in the kitchen during cooking may be reduced in quality without the user noticing this as a disturbance.
  • - recorded streams have the potential of being viewed multiple times. During their recording, they have thus greater importance as streams that are viewed live, whereas they have lesser importance during playback.
  • - streams viewed/listened to by a plurality of persons have a greater importance than those viewed by only one person, particularly when the other persons are guests, there are broadcasts and programs which are less important to the user or in which parts are considered to be less important such as, for example, the video information given on music stations.
  • the streams of different users may have priority, for example, streams for children in the afternoon and streams for parents in the evening, different sources or end appliances raise different user expectations concerning the grade of interference. Disturbances regarding transmissions from the Internet or a mobile appliance will be sooner condoned than those from the television in the living room. In the case of an occurring lack of resources, the streams having the lowest priority are the first to be reduced in quality or aborted completely. As a result, the user does not notice the required quality reduction or experiences it as a less disturbing phenomenon. This leads to a subjectively higher quality level.
  • a priority for each stream is regularly determined by the users from information on the context and from the contents of all streams, and the different applications/operating system components are notified about this determined priority for each stream. This ensures that the applications can react without delay in the case of a resource bottleneck.
  • the applications in the system transmit their quality requirements in combination with their connection requirements. This ensures that the minimal requirements of the appliances or applications are taken into account when computing the priorities. Consequently, reject factors such as, for example, burning failures on a CD because of a data stream break-off are avoided.
  • the user is enabled to deny a quality limitation of the system, whereupon the system determines the next best priority and notifies the applications about it.
  • This enables the user to act, so that a subjective quality, which the user experiences as a negative quality, can be counteracted.
  • user denials are stored by the system and taken into account when determining future priority computations. Consequently, the system acquires a learning capability so that its practical usefulness is enhanced.
  • the efficiency of the system is continuously improved by the permanent adaptation of the computations to the quality experienced by the user as a real quality.
  • Fig. 1 shows diagrammatically the method according to the invention.
  • a digital home network in accordance with the IEEE 802.1 lb standard.
  • the network includes, for example, a television set la (in the kitchen), a computer lb as well as hi-fi equipment lc.
  • the applications la, lb, lc receive their data streams from a home archive 2.
  • a network 5 supporting Quality of Service (QoS), particularly priority-based QoS, is present between the home archive 2 and the applications la, lb, lc.
  • QoS Quality of Service
  • this is substantially a support of the priority classes of IEEE 802. l ie.
  • IEEE 802.15.3 or home plug 1 may be used.
  • the exceptional case arises that the applications themselves must implement QoS.
  • the applications la, lb, lc require their necessary data streams from the QoS priorizer 3, co-transmitting their QoS requirements.
  • legacy applications which have direct access to the network 5 without considering the priorizer 3
  • the corresponding accesses are either communicated to the priorizer 3 by the network 5 or detected by the priorizer itself when it monitors the network traffic.
  • the requirements that are lacking in these cases are substituted for default values which are dependent on possibly detected applications or the type of stream.
  • the priorizer 3 now checks, possibly on the basis of the application requirements 4, whether the required stream leads to a structural overload of the available network resources.
  • the priorizer enriches the requirement 4 with information about the content of the stream (content metadata) 9, about the present wishes of the user and his current environment and about his actions 8. He receives this information from further components such as the home archive 2, the user data base 6 and the context detector 7 which are parts of the system.
  • the requirement data thus enriched of the new stream are combined with the enriched requirement data of already existing streams and checked on the existence of particular situations (such as the situations described above). On this basis, a priority is determined for the new stream and the priorities 10 of existing streams are possibly changed.
  • the new and changed priorities 10 are then communicated to the network 5 or the applications la, lb, lc in a corresponding format - in the example as priority classes in accordance with IEEE 802. Id.
  • these applications pass on the priorities 10 to the network 5.
  • the priorizer 3 will allocate a lower priority 10 to the video data stream to the television set la in the kitchen, because it has been assumed that the user will observe the corresponding broadcast mainly acoustically and will hardly watch it.
  • the priorizer 3 will allocate a high priority 10 to this stream, because an interruption of the stream may lead to uselessness of the written CD.
  • the newly required stream is a stream having a scalable bandwidth
  • the priorizer 3 does not determine a priority for the stream but a priority for each of its transmission bands.
  • the current data flow 51 is actually transmitted under the sole responsibility of the network 5.
  • the QoS-capable network 5 automatically reduces the bandwidth occupied by the less important streams by transmitting packets of these streams only partially or with a delay, or by not transmitting them.
  • the context detector 7 determines that the context of the user or about the content of the stream, but also about longer lasting bandwidth limitations of the network 5 and thereupon possibly changes the priorities 10 of already existing streams and informs the network 5 or the applications la, lb, lc about this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention se rapporte à un procédé de gestion des étranglements de capacité dans des réseaux numériques, notamment des réseaux numériques domestiques, dans lesquels au moins deux appareils ou applications ayant des interfaces publiques permettant d'influencer l'attribution des ressources internes dans un système ont accès aux ressources d'un support de transfert de données ayant une largeur de bande non constante. Dans le cas d'un étranglement relatif aux ressources, le débit de transfert des données est réduit pour le train de données pour lequel l'effet sur l'application associée est la moins visible par l'utilisateur.
PCT/IB2005/050168 2004-01-23 2005-01-14 Gestion des etranglements de capacite dans des reseaux numeriques WO2005071896A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006550389A JP2007523533A (ja) 2004-01-23 2005-01-14 デジタルネットワークにおけるキャパシティボトルネックの処理
EP05702678A EP1712042A1 (fr) 2004-01-23 2005-01-14 Gestion des etranglements de capacite dans des reseaux numeriques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04100231 2004-01-23
EP04100231.2 2004-01-23

Publications (1)

Publication Number Publication Date
WO2005071896A1 true WO2005071896A1 (fr) 2005-08-04

Family

ID=34802679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/050168 WO2005071896A1 (fr) 2004-01-23 2005-01-14 Gestion des etranglements de capacite dans des reseaux numeriques

Country Status (5)

Country Link
EP (1) EP1712042A1 (fr)
JP (1) JP2007523533A (fr)
KR (1) KR20070009548A (fr)
CN (1) CN1910864A (fr)
WO (1) WO2005071896A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682708B (zh) * 2007-03-22 2012-12-05 联合视频制品公司 用于指派内容的目的地的用户定义的规则

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10057811B2 (en) * 2015-07-22 2018-08-21 Microsoft Technology Licensing, Llc Hierarchical spectrum offload

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020044567A1 (en) * 2000-08-10 2002-04-18 Voit Eric A. Automatic programming of customer premises equipment for vertical services integration
US20020144147A1 (en) * 2001-03-30 2002-10-03 International Business Machines Corporation Prioritization of networks for preferred groups
US20030142664A1 (en) * 1997-12-31 2003-07-31 At&T Corp. Network server platform (NSP) for a hybrid coaxial/twisted pair local loop network service architecture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142664A1 (en) * 1997-12-31 2003-07-31 At&T Corp. Network server platform (NSP) for a hybrid coaxial/twisted pair local loop network service architecture
US20020044567A1 (en) * 2000-08-10 2002-04-18 Voit Eric A. Automatic programming of customer premises equipment for vertical services integration
US20020144147A1 (en) * 2001-03-30 2002-10-03 International Business Machines Corporation Prioritization of networks for preferred groups

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682708B (zh) * 2007-03-22 2012-12-05 联合视频制品公司 用于指派内容的目的地的用户定义的规则

Also Published As

Publication number Publication date
JP2007523533A (ja) 2007-08-16
KR20070009548A (ko) 2007-01-18
EP1712042A1 (fr) 2006-10-18
CN1910864A (zh) 2007-02-07

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