EP1709804A2 - Method for supporting services in an ip-based video network on the basis of subscriber-controlled status information - Google Patents

Method for supporting services in an ip-based video network on the basis of subscriber-controlled status information

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Publication number
EP1709804A2
EP1709804A2 EP05701482A EP05701482A EP1709804A2 EP 1709804 A2 EP1709804 A2 EP 1709804A2 EP 05701482 A EP05701482 A EP 05701482A EP 05701482 A EP05701482 A EP 05701482A EP 1709804 A2 EP1709804 A2 EP 1709804A2
Authority
EP
European Patent Office
Prior art keywords
subscriber
video
video network
server
capable terminal
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Withdrawn
Application number
EP05701482A
Other languages
German (de)
French (fr)
Inventor
Axel Scheuer
Stefan Unger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Siemens AG
Nokia Siemens Networks GmbH and Co KG
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 Siemens AG, Nokia Siemens Networks GmbH and Co KG filed Critical Siemens AG
Priority to EP05701482A priority Critical patent/EP1709804A2/en
Publication of EP1709804A2 publication Critical patent/EP1709804A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content

Definitions

  • IP-based video networks typically offer entertainment services that use video streaming to transmit films and other video data to the subscriber.
  • the end device that receives this video data is a so-called Set Top Box (STB), which is connected to a TV set.
  • STB Set Top Box
  • IP-based video networks with digital transmission of video data can have different topologies, e.g. can be based on DSL technology or cable networks.
  • the method according to the invention describes how presence-based services for the subscribers of such video networks can be offered, taking into account special data of the network.
  • presence-based services are instant messaging (ie exchanging text messages in real time) between the participants in the video network via the TV or automatically initiating a video conference when the required participants are available or playing online together Play with registered participants in a buddy list.
  • the method according to the invention enables the support of presence-based communication services for participants in an IP-based video network.
  • the so-called presence server in the video network is essential for carrying out the method. This stores the presence information for the participants in the video network.
  • the presence information of the video subscriber includes information such as, for example, • the video subscriber is online, ie his STB is active and is registered and authenticated in the central control server of the video network • at which addresses can the subscriber be reached (eg IP address or usernameSdomain) • what service is the video subscriber currently using (eg watching a film booked via Video on Demand (VoD) or playing a game online for several players on a server in the video network) • personal mood of the Video participant ("does not want to be disturbed", "look forward to a message", "look for teammate") •
  • the server can also keep lists with the addresses and presence information of friends / former communication partners (so-called "buddy lists”).
  • the presence server contains profiles for all participants or presence users. This ensure
  • the presence server advantageously has an interface to the control server of the video network, which controls all video services.
  • the control server typically knows the status of all running services (-> "sessions") for online video participants, since this includes responsible for billing and statistics for the services.
  • the Presence Server can request more information about the services used by the video participants, e.g. which video participant is currently using which service in which detail or design. With this information, the presence server can e.g. create a list of all participants who at the same time watch a certain film via VoD or a certain soccer game on a DVB (Digital Video Broadcast) channel.
  • DVB Digital Video Broadcast
  • SW applications are also integrated in the SW client on the STB • ⁇ iiPresence User Agent (PUA):
  • PUA iiPresence User Agent
  • the registration data with the presence server are the above-mentioned additional information such as mood and information about the service used.
  • the application also allows the presence status query of other video participants in the network at the presence server. Such a query can take place on the basis of certain criteria, for example which participant is currently watching a certain film.
  • the application allows the presence status of the participant and other participants (from his "buddy list” or from other lists offered by the presence server) to be displayed in dedicated windows on the TV set.
  • At least one service application e.g. B. Instant Messaging / Chat User Agent (IMUA):
  • IMUA Instant Messaging / Chat User Agent
  • the IMUA software application allows the immediate exchange of text messages with other Instant Message / Chat User Agents.
  • the application is coupled with the PUA application, ie an IM / chat session with participants who are online and, if necessary, meet other required criteria can be started based on the presence information of certain participants.
  • these UA applications run directly on the STB and communicate with the servers in the network or other STB.
  • the signaling protocols for this can be proprietary or standard protocols.
  • Standard protocols for presence are standardized in the IETF under SIMPLE or 3GPP PAM, for example. If necessary, the standard protocols would have to be expanded for an implementation according to the invention if video network-specific information (for example data about films or DVB channels) cannot be transmitted in standard parameters.
  • Standard protocols e.g. in the IETF
  • open source implementations e.g. Jabber
  • the method according to the invention is also conceivable with STBs which only have an HTML-capable browser (so-called "thin clients") and which only support communication with the central video control server via HTTP.
  • the UA applications mentioned must be integrated on the Control Server.
  • the activation of the corresponding procedures for updating and querying presence data at the presence server by the video participant, etc. is then mapped onto HTML pages, which then pass on the corresponding control information to the PUA application.
  • the PUA application then communicates with the presence server as described above.
  • the exchange of instant messages / chat can also be mapped to HTML pages.
  • the STB should also allow the text fields in which received or self-written messages are displayed on the TV set to be displayed either as a single full screen or as a partial screen overlaid on another screen (e.g. video film).
  • the so-called "alphablending" technology which is supported by state-of-the-art STB chips, allows the overlaying of TV pictures.
  • an STB application such as the PUA can generate information in the format of a TV picture and mix it with a TV signal and display the mixed picture on a TV set. Representation as a sub-picture allows the participant to have an IM / chat session parallel to a running video program.
  • the online status information regarding presence should be able to be displayed as a full image or overlaid image.
  • the STB typically has an external keyboard for text input, which is either wireless (e.g. via infra- red) or can be connected directly with a cable.
  • a "virtual" keyboard is also conceivable, ie a keyboard shown on the TV set on which the subscriber selects letters by remote control.
  • Simplified input algorithms such as the "T9" algorithm for mobile radio terminals are also conceivable.
  • the method according to the invention allows new communication services such as e.g. Offer IM / chat, presence-controlled video conferences or online games with participants in a buddy list between participants in an IP-based video network.
  • the central presence server not only allows the acquisition of the information "which subscriber is currently online (STB active)", but can also acquire video network-specific data, e.g. what service does a registered subscriber use. This makes it possible, for example, to start IM / Chat sessions with participants who are currently watching the same film or using other services of the video network at the same time.
  • video participants can communicate in parallel with an ongoing video transmission.
  • the presence server in the video network also allows the registration of IP subscribers in other networks, for example mobile radio subscribers with PUA or IP subscribers who surf the Internet and have a suitable PUA, then presence-based communication between these subscribers is also required and the video network participants possible. Of course, this requires compatible PUA and IMUA applications on the end devices and in the presence server.
  • the video network must have the appropriate IP-based signaling via a suitable gate way into the external IP network.
  • direct communication takes place between the presence server of the video network and other presence servers.
  • the presence server described and the PUA in the STB are generic and can be combined with other communication services, eg for presence-based video telephony or video conference - provided the video network offers the technical possibilities.
  • Item 5 Graphic representation of exemplary embodiment (s) of the invention
  • the simplified example shows an IP-based video network which is implemented on the basis of an ADSL network.
  • the STB of the video participants communicate with the central control
  • films for VoD can be selected using EPG (Electronic Program Guide).
  • the control server transmits the addresses to the servers with the digital video data.
  • the control server monitors this ongoing video session and controls the charging.
  • the software includes on the STB applications for presence (PUA) and instant messaging '(IMUA).
  • PUA updates the presence data for the video participant in the central presence server.
  • the PUA in the STB gets the presence data from other participants on request, for example for all participants that are entered in the buddy list.
  • the PUA application displays this presence data on request (e.g. pressing a button on the STB remote control) on the connected TV set.
  • the video participant 1 (video part 1) recognizes from the status information for his buddy list that is displayed to him, that the video participant 2 1 (video part 2) is online. By selecting this subscriber with his STB remote control, the subscriber can open an IM session with this subscriber 2, ie IM data is exchanged between subscriber 1 and subscriber 2 via an IP-based connection (dashed line, shown) , The text messages are displayed on the TV. The text is entered via an IR-controlled keyboard (keyboard not shown).
  • IMUA Instant Message / Chat User Agent
  • IP Internet protocol
  • PUA Presence User Agent

Abstract

Typically, IP-based video networks offer entertainment services which transmit films and other video data to subscribers by means of video streaming. The terminal which receives said video data is a set-top box (STB) which is connected to a TV device. Providers looking for new business opportunities can find it interesting to offer other services in addition. The inventive method describes how presence-based services, e.g. instant messaging, can be offered to subscribers of such video networks.

Description

Beschreibungdescription
Verfahren zur Unterstützung von Diensten in einem IP-basierten Video-Netz auf Basis teilnehmergesteuerter Sta- tusinformationenProcess for supporting services in an IP-based video network based on subscriber-controlled status information
Punkt 1 : Welches Problem liegt der Erfindung zugrunde?Point 1: What is the problem underlying the invention?
IP-basierte Video-Netze bieten typischerweise Unterhaltungs- dienste die mittels Video-Streaming Filme und andere Video- Daten zum Teilnehmer übertragen. Das Endgerät, das diese Video-Daten empfängt, ist eine sogenannte Set Top Box (STB) , die an ein TV-Gerät angeschlossen wird. IP-basierte Video- Netze mit digitaler Übertragung von Video-Daten können unter- schiedliche Topologien haben, z.B. können auf DSL Technologie oder auf Kabelnetzen basieren.IP-based video networks typically offer entertainment services that use video streaming to transmit films and other video data to the subscriber. The end device that receives this video data is a so-called Set Top Box (STB), which is connected to a TV set. IP-based video networks with digital transmission of video data can have different topologies, e.g. can be based on DSL technology or cable networks.
Auf der Suche nach neuen Geschäftsfeldern besteht seitens der Betreiber solcher Netze Interesse auch weitere Dienste anzubieten. Das erfindungsgemäße Verfahren beschreibt wie Presen- ce-basierte Dienste für die Teilnehmer von solchen Video- Netzen angeboten werden können unter Berücksichtigung spezieller Daten des Netzes. Beispiele für einen Presence- basierte Dienste sind Instant Messaging (d.h. das Austauschen von Textnachrichten in Echtzeit) zwischen den Teilnehmern der Video-Netzes über das TV-Gerät oder die automatische Initiierung einer Video-Konferenz bei Verfügbarkeit der erforderlichen Teilnehmer oder das gemeinsame Spielen von Online Spielen mit registrierten Teilnehmern einer Buddy-List..In the search for new business fields, operators of such networks are interested in offering additional services. The method according to the invention describes how presence-based services for the subscribers of such video networks can be offered, taking into account special data of the network. Examples of presence-based services are instant messaging (ie exchanging text messages in real time) between the participants in the video network via the TV or automatically initiating a video conference when the required participants are available or playing online together Play with registered participants in a buddy list.
Punkt 2 ; Wie wurde dieses Problem bisher gelöst?Point 2; How has this problem been solved so far?
Heutige Lösungen von Video-Netzen bieten bisher keine integrierten Dienste an. Einfache Lösungen sind denkbar indem parallel zu den Endgeräten TV-Gerät plus STB zusätzliche PCs an das Netz angeschlos- sen werden, die dann zwischen den PCs Kommunikationsdienste erlauben.Today's video network solutions do not yet offer any integrated services. Simple solutions are conceivable by connecting additional PCs to the network parallel to the end devices TV set plus STB. which then allow communication services between the PCs.
Weiterhin gibt es Lösungen um an größere Teilnehmergruppen kurze Textmeldungen zu senden, die über das aktuelle am TV- Gerät sichtbare Video-Bild geblendet werden, z.B. Unwetter Warnungen. Dies sind jedoch keine individuellen Meldung an bestimmte Teilnehmer und werden nur vom zentralen Control Server an die Teilnehmergruppe verteilt.There are also solutions to send short text messages to larger groups of participants that are blinded by the current video image visible on the TV, e.g. Severe weather warnings. However, these are not individual messages to certain participants and are only distributed to the participant group by the central control server.
Die Unterstützung von Kommunikationsdiensten wie z.B. Instant Messaging (IM) /Chat zwischen Teilnehmern eines Video-Netzes unter Berücksichtigung von Presence Informationen ist bisher nicht bekannt .Supporting communication services such as Instant messaging (IM) / chat between participants in a video network taking into account presence information is not yet known.
Punkt 3 : Wie löst die Erfindung das genannte Problem ?Point 3: How does the invention solve the problem mentioned?
Das erfindungsgemäße Verfahren ermöglicht die Unterstützung von Presence-basierten Kommunikationsdiensten für Teilnehmer eines IP basierten Video-Netzes. Zur Durchführung des Verfahrens ist der sogenannte Presence Server im Video-Netz wesentlich. Dieser speichert die Presence Information für die Teilnehmer des Video-Netzes. Die Pre- sence-Information der Video-Teilnehmer umfasst Informationen wie z.B. • der Video-Teilnehmer ist online, d.h. hat seine STB ist aktiv und ist im zentralen Control Server des Video- Netzes registriert und authentifiziert • unter welcher Adressen ist der Teilnehmer erreichbar (z.B. IP-Adresse oder usernameSdomain) • welchen Dienst nutzt der Video-Teilnehmer im Moment (z.B. sieht einen über Video on Demand (VoD) gebuchten Film oder spielt online ein Spiel für mehrere Mitspieler auf einem Server des Video-Netzes) • persönliche Stimmung des Video-Teilnehmers ("will nicht gestört werden", "freue mich über eine Nachricht", "suche Mitspieler") • Ferner kann der Server auch Listen mit den Adressen und Presenceinformationen von Freunden/früheren Kommunikationspartnern führen (sogenannte "buddy lists") . Aus Sicherheitsgründen enthält der Presence Server Profile für alle Teilnehmer bzw. Presencenutzer . Damit wird gewährleistet, dass z.B. nur registrierte Nutzer Presencedaten anfordern oder übermitteln können oder dass nur Nutzer Daten anfordern können ("watcher") wenn der Nutzer dessen Presencedaten angefordert werden ("presentity") dies erlaubt hat.The method according to the invention enables the support of presence-based communication services for participants in an IP-based video network. The so-called presence server in the video network is essential for carrying out the method. This stores the presence information for the participants in the video network. The presence information of the video subscriber includes information such as, for example, • the video subscriber is online, ie his STB is active and is registered and authenticated in the central control server of the video network • at which addresses can the subscriber be reached ( eg IP address or usernameSdomain) • what service is the video subscriber currently using (eg watching a film booked via Video on Demand (VoD) or playing a game online for several players on a server in the video network) • personal mood of the Video participant ("does not want to be disturbed", "look forward to a message", "look for teammate") • Furthermore, the server can also keep lists with the addresses and presence information of friends / former communication partners (so-called "buddy lists"). For security reasons, the presence server contains profiles for all participants or presence users. This ensures that, for example, only registered users can request or transmit presence data, or that only users can request data ("watcher") if the user has requested his presence data ("presentity") has permitted this.
Zur Verbesserung der Möglichkeiten des erfindungsgemäßen Verfahrens hat der Presence Server vorteilhafterweise eine Schnittstelle zu dem Control Server des Video-Netzes, der sämtliche Video-Dienste steuert. (Die gebräuchliche Bezeich- nung für die Applikation auf dem Control Server für Video- Dienste ist "Middleware") . Der Control Server kennt typischerweise den Status aller laufenden Dienste (-> "sessions") für online Video-Teilnehmer, da dieser u.a. für die Vergebüh- rung und Statistik für die Dienste zuständig ist. Über die Schnittstelle zwischen Presence Server und Control Server kann der Presence Server nähere Informationen zu den von den Video-Teilnehmern genutzten Diensten abfragen, z.B. welcher Video-Teilnehmer welchen Dienst zur Zeit in welcher Detaillierung bzw. Ausgestaltung nutzt. Mit diesen Informationen kann sich der Presence Server z.B. eine Liste aller Teilnehmer erstellen, die zur gleichen Zeit einen bestimmten Film über VoD oder ein bestimmtes Fußballspiel auf einem DVB (Digital Video Broadcast) Kanal sehen.To improve the possibilities of the method according to the invention, the presence server advantageously has an interface to the control server of the video network, which controls all video services. (The common name for the application on the control server for video services is "middleware"). The control server typically knows the status of all running services (-> "sessions") for online video participants, since this includes responsible for billing and statistics for the services. Via the interface between the Presence Server and Control Server, the Presence Server can request more information about the services used by the video participants, e.g. which video participant is currently using which service in which detail or design. With this information, the presence server can e.g. create a list of all participants who at the same time watch a certain film via VoD or a certain soccer game on a DVB (Digital Video Broadcast) channel.
Weiterhin sind im SW Client auf der STB folgende SW Applikationen integriert • ^ iiPresence User Agent (PUA) : Diese SW Applikation meldet sich bei dem Presence Server im Netz an sobald der Video-Teilnehmer online ist, d.h. seine STB aktiv ist. Ebenso kann sich der Teilnehmer wieder abmelden ("offline" Status = "not present") oder während einer Video-Session seinen Status ändern. Teil der Anmelde-Daten beim Presence Server sind die oben erwähnten Zusatzinformation wie Stimmung und Informationen über den genutzten Dienst. Weiterhin erlaubt die Applikation die Presence-Status Abfrage von anderen Video- Teilnehmern im Netz beim Presence Server. Eine solche Abfrage kann aufgrund von bestimmten Kriterien erfolgen, z.B. welcher Teilnehmer sieht gerade einen bestimmten Film. Die Applikation erlaubt die Darstellung des Presence Status des Teilnehmers sowie anderer Teilnehmer (aus seiner "buddy list" oder aus anderen vom Presence Server angebotenen Listen) in dedizierten Fenstern auf dem TV- Gerät . • Mindestens eine Dienstapplikation, z . B. Instant Messa- ge/Chat User Agent (IMUA) : Die IMUA-Software-Applikation erlaubt den sofortigen Austausch von Textnachrichten mit anderen Instant Message/Chat User Agents. Je nach Möglichkeiten der Applikation ist eine eins-zu-eins Kommunikation oder auch einen eins-zu-n Kommunikation denkbar. Die Applikation ist mit der PUA Applikation gekoppelt, d.h. anhand der Presence- Information bestimmter Teilnehmer kann eine IM/Chat Session mit Teilnehmern die online sind und ggfs. weitere geforderte Kriterien erfüllen gestartet werden. Heutige STB haben die prinzipielle technische Möglichkeit solche SW-Applikationen in die Client-Software auf der STB zu integrieren. In diesem Fall laufen diese UA-Applikationen direkt auf der STB und kommunizieren mit den Servern im Netz bzw. anderen STB. Die Signalisierungsprotokolle dafür können proprietär oder auch Standard-Protokolle sein. Standard Protokolle für Presence werden z.B. in der IETF unter SIMPLE oder 3GPP PAM standardisiert. Gegebenenfalls müssten für eine erfindungsgemäße Implementierung die Standard-Protokolle erweitert werden falls Video-Netz spezifische Informationen (z.B. Daten über Filme oder DVB-Kanäle) nicht in Standard- Parametern übertragen werden können. Auch für den Austausch von Instant Messages sowie für die UA könnten Standard-Protokolle (z.B. in der IETF) oder open source Implementierungen (z.B. Jabber) eingesetzt werden.The following SW applications are also integrated in the SW client on the STB • ^ iiPresence User Agent (PUA): This SW application registers with the presence server in the network as soon as the video participant is online, ie his STB is active. Likewise, the participant can log off again ("offline" status = "not present") or change his status during a video session. part The registration data with the presence server are the above-mentioned additional information such as mood and information about the service used. The application also allows the presence status query of other video participants in the network at the presence server. Such a query can take place on the basis of certain criteria, for example which participant is currently watching a certain film. The application allows the presence status of the participant and other participants (from his "buddy list" or from other lists offered by the presence server) to be displayed in dedicated windows on the TV set. • At least one service application, e.g. B. Instant Messaging / Chat User Agent (IMUA): The IMUA software application allows the immediate exchange of text messages with other Instant Message / Chat User Agents. Depending on the possibilities of the application, one-to-one communication or one-to-n communication is conceivable. The application is coupled with the PUA application, ie an IM / chat session with participants who are online and, if necessary, meet other required criteria can be started based on the presence information of certain participants. Today's STB have the basic technical possibility of integrating such software applications into the client software on the STB. In this case, these UA applications run directly on the STB and communicate with the servers in the network or other STB. The signaling protocols for this can be proprietary or standard protocols. Standard protocols for presence are standardized in the IETF under SIMPLE or 3GPP PAM, for example. If necessary, the standard protocols would have to be expanded for an implementation according to the invention if video network-specific information (for example data about films or DVB channels) cannot be transmitted in standard parameters. Standard protocols (e.g. in the IETF) or open source implementations (e.g. Jabber) could also be used for the exchange of instant messages and for the UA.
Als Variante ist das erfindungsgemäße Verfahren auch mit STB denkbar, die nur über einen HTML-fähigen Browser verfügen (sogenannte "Thin Clients") und die eine Kommunikation mit dem zentralen Video Control Server ausschließlich über HTTP unterstützen. In diesem Fall müssen die genannten UA Applika- tionen auf dem Control Server integriert werden. Die Aktivierung der entsprechenden Prozeduren für die Aktualisierung und Abfrage von Presence Daten beim Presence Server durch den Video-Teilnehmer uss dann auf HTML Seiten abgebildet werden die dann entsprechende Steuerinformationen an die PUA Appli- kation weitergeben. Die PUA Applikation kommuniziert dann mit dem Presence Server wie oben beschrieben. Ebenso kann der Austausch von Instant Messages/Chat auf HTML-Seiten abgebildet werden .As a variant, the method according to the invention is also conceivable with STBs which only have an HTML-capable browser (so-called "thin clients") and which only support communication with the central video control server via HTTP. In this case, the UA applications mentioned must be integrated on the Control Server. The activation of the corresponding procedures for updating and querying presence data at the presence server by the video participant, etc. is then mapped onto HTML pages, which then pass on the corresponding control information to the PUA application. The PUA application then communicates with the presence server as described above. The exchange of instant messages / chat can also be mapped to HTML pages.
Die STB soll weiterhin erlauben , dass die Textfelder in denen empfangene oder selbst geschriebene Nachrichten dargestellt werden auf dem TV-Gerät entweder als alleiniges Vollbild oder als Teilbild welches über eine anderes Bild (z.B. Video-Film ) gelegt wird angezeigt werden. Prinzipiell er- laubt die sogenannte "alphablending" Technologie, die von state-of-the-art STB chips unterstützt wird, das Überlagern von TV-Bildern. Somit kann beispielsweise eine STB Applikation wie der PUA Informationen im Format eines TV-Bildes erzeugen und mit einem TV-Signal mischen und das gemischte Bild auf einem TV-Gerät darstellen. Eine Darstellung als Teilbild erlaubt dem Teilnehmer eine IM/Chat Session parallel zu einem laufenden Video-Programm. Ebenso die Online-Status Informationen bzgl. Presence sollen als Vollbild oder überlagertes Bild darstellbar sein.The STB should also allow the text fields in which received or self-written messages are displayed on the TV set to be displayed either as a single full screen or as a partial screen overlaid on another screen (e.g. video film). In principle, the so-called "alphablending" technology, which is supported by state-of-the-art STB chips, allows the overlaying of TV pictures. Thus, for example, an STB application such as the PUA can generate information in the format of a TV picture and mix it with a TV signal and display the mixed picture on a TV set. Representation as a sub-picture allows the participant to have an IM / chat session parallel to a running video program. Likewise, the online status information regarding presence should be able to be displayed as a full image or overlaid image.
Zur Texteingabe verfügt die STB typischerweise über ein externes Keyboard, welches entweder schnurlos (z.B. via Infra- rot) oder direkt mit einem Kabel anschließbar ist. Ebenso denkbar ist ein "virtuelles" Keyboard, d.h. eine auf dem TV- Gerät dargestellte Tastatur auf der der Teilnehmer mittels Fernbedienung Buchstaben auswählt. Auch vereinfachte Eingabealgorithmen wie der für Mobilfunkendgeräte "T9" Algorithmus sind denkbar.The STB typically has an external keyboard for text input, which is either wireless (e.g. via infra- red) or can be connected directly with a cable. A "virtual" keyboard is also conceivable, ie a keyboard shown on the TV set on which the subscriber selects letters by remote control. Simplified input algorithms such as the "T9" algorithm for mobile radio terminals are also conceivable.
Punkt : Welche Vorteile hat die Erfindung ?Point: What are the advantages of the invention?
Das erfindungsgemäße Verfahren erlaubt es, neue Kommunikationsdienste wie z.B. IM/Chat, Presence-gesteuerte Video- Konferenzen oder Online Spiele mit Teilnehmern einer Buddy List zwischen den Teilnehmern eines IP-basierten Video Net- zes anzubieten. Der zentrale Presence Server erlaubt nicht nur die Erfassung der Information "welcher Teilnehmer ist z . Zt . online (STB aktiv)", sondern kann auch Video-Netz spezifische Daten erfassen, wie z.B. welchen Dienst nutzt ein angemeldeter Teilnehmer. Damit ist es möglich, beispielsweise IM/Chat Sessions mit Teilnehmern zu starten die gerade den selben Film anschauen oder andere Dienste des Video-Netzes gleichzeitig nutzen . Bei Einblendung der Textein- und ausga- befeider über ein Video-Bild, z.B. im unteren Bereich können Video-Teilnehmer parallel zu einer laufenden Video- Übertragung kommunizieren.The method according to the invention allows new communication services such as e.g. Offer IM / chat, presence-controlled video conferences or online games with participants in a buddy list between participants in an IP-based video network. The central presence server not only allows the acquisition of the information "which subscriber is currently online (STB active)", but can also acquire video network-specific data, e.g. what service does a registered subscriber use. This makes it possible, for example, to start IM / Chat sessions with participants who are currently watching the same film or using other services of the video network at the same time. When the text input and output fields are displayed via a video image, e.g. in the lower area, video participants can communicate in parallel with an ongoing video transmission.
Optionen: • Wenn der Presence Server im Video Netz auch die Registrierung von IP-Teilnehmern in anderen Netzen erlaubt, z.B. Mobilfunkteilnehmer mit PUA oder IP-Teilnehmer die im Internet surfen und einen passenden PUA haben, so ist auch eine Presence basierte Kommunikation zwischen diesen Teilnehmern und den Video-Netz Teilnehmern möglich. Voraussetzung dafür sind natürlich kompatible PUA und IMUA Applikationen auf den Endgeräten und im Presence Server. Ebenso muss das Video-Netz die entsprechenden IP-basierten Signalisierungen über ein geeignetes Gate- way in das externe IP-Netz ermöglichen.Als Variante wäre auch denkbar dass eine direkte Kommunikation zwischen dem Presence Server des Video-Netzes und anderen Presence Servern stattfindet. Der beschriebene Presence Server und der PUA in der STB sind generisch und können mit anderen Kommunikationsdiensten kombiniert werden, z.B. für Presence basieret Video Telphonie oder Video Konferenz - sofern das Video- Netz die technischen Möglichkeiten dafür bietet.Options: • If the presence server in the video network also allows the registration of IP subscribers in other networks, for example mobile radio subscribers with PUA or IP subscribers who surf the Internet and have a suitable PUA, then presence-based communication between these subscribers is also required and the video network participants possible. Of course, this requires compatible PUA and IMUA applications on the end devices and in the presence server. Likewise, the video network must have the appropriate IP-based signaling via a suitable gate way into the external IP network. As a variant, it would also be conceivable that direct communication takes place between the presence server of the video network and other presence servers. The presence server described and the PUA in the STB are generic and can be combined with other communication services, eg for presence-based video telephony or video conference - provided the video network offers the technical possibilities.
Punkt 5 : Zeichnerische Darstellung von Ausführungsbeispiel (en) der ErfindungItem 5: Graphic representation of exemplary embodiment (s) of the invention
Ein Anwendungsbeispiel für das erfindungsgemäße Verfahren ist in der Figur dargestellt.An application example for the method according to the invention is shown in the figure.
Das vereinfachte Beispiel zeigt ein IP-basiertes Video-Netz welches auf Basis eines ADSL Netzes realisiert ist. Die STB der Video Teilnehmer kommunizieren mit dem zentralen ControlThe simplified example shows an IP-based video network which is implemented on the basis of an ADSL network. The STB of the video participants communicate with the central control
Server für Video-Dienste. Beispielsweise können mittels EPG (Electronic Programm Guide) Filme für VoD ausgewählt werden.Server for video services. For example, films for VoD can be selected using EPG (Electronic Program Guide).
Der Control Server übermittelt die Adressen zu den Servern mit den digitalen Video Daten. Der Control Server überwacht diese laufenden Video-Session und steuert die Vergebührung.The control server transmits the addresses to the servers with the digital video data. The control server monitors this ongoing video session and controls the charging.
Erfindungsgemäß enthält die SW auf der STB die Applikationen für Presence (PUA) und Instant Messaging ' (IMUA) . Beim Aktiveren der STB aktualisiert der PUA die Presence Daten für den Video Teilnehmer im zentralen Presence Server. Der PUA in der STB holt sich die Presence Daten von anderen Teilnehmern auf Anfrage, z.B. für alle Teilnehmer die in der Buddy List eingetragen sind. Diese Presence Daten stellt die PUA Applikation auf Anfrage (z.B. Drücken eines Knopfes auf der STB Fernbedienung) auf dem angeschlossenen TV-Gerät dar.According to the invention, the software includes on the STB applications for presence (PUA) and instant messaging '(IMUA). When the STB is activated, the PUA updates the presence data for the video participant in the central presence server. The PUA in the STB gets the presence data from other participants on request, for example for all participants that are entered in the buddy list. The PUA application displays this presence data on request (e.g. pressing a button on the STB remote control) on the connected TV set.
Der Video Teilnehmer 1 (Video Tln 1) erkennt anhand der Status Information für seine Buddy List die ihm angezeigt wird, dass der Video Teilnehmer 2 1 (Video Tln 2) online ist. Durch Auswahl diese Teilnehmers mit seiner STB Fernbedienung kann dieser eine IM Session mit diesem Teilnehmer 2 eröffnen, d.h. es werden über eine IP-basierte Verbindung (gestrichelt, o- range dargestellt) IM-Daten gemäß dem implementierten Protokoll zwischen Teilnehmer 1 und Teilnehmer 2 ausgetauscht. Die Textnachrichten werden am TV-Gerät dargestellt. Die Texteingabe erfolgt über eine IR-gesteuertes Keyboard (Keyboard nicht dargestellt) .The video participant 1 (video part 1) recognizes from the status information for his buddy list that is displayed to him, that the video participant 2 1 (video part 2) is online. By selecting this subscriber with his STB remote control, the subscriber can open an IM session with this subscriber 2, ie IM data is exchanged between subscriber 1 and subscriber 2 via an IP-based connection (dashed line, shown) , The text messages are displayed on the TV. The text is entered via an IR-controlled keyboard (keyboard not shown).
Abkürzungen :Abbreviations:
IM: Instant MessageIM: Instant Message
IMUA: Instant Message/Chat User AgentIMUA: Instant Message / Chat User Agent
IP: Internet ProtokollIP: Internet protocol
PUA: Presence User AgentPUA: Presence User Agent
STB: Set Top Box SW: SoftwareSTB: Set Top Box SW: software
UA: User AgentUA: User Agent
VoD : Video on Demand VoD: Video on Demand

Claims

Patentansprüche claims
1. Verfahren zur Unterstützung von Diensten eines IP- basierten Video-Netzes, demgemäß a) ein Teilnehmer des Video-Netzes auf Wunsch über sein IP- fähiges Endgerät als Nutzer eines Presence-basierten Dienstes bei einem Presence Server registriert wird, b) der genannte Teilnehmer durch sein IP fähiges Endgerät bei dem Presence Server angemeldet wird, sobald sein Endgerät aktiv wird, wobei im Rahmen der genannten Anmeldung von dem Presence Server Informationen über den Presence-Status des Teilnehmers abgespeichert werden, c) dem genannten Teilnehmer entsprechende Presence- Informationen über andere Teilnehmer bei einer entspre- chenden Abfrage mithilfe seines IP-fähiges Endgerätes vom Presence Server zur Verfügung gestellt werden.1. A method for supporting services of an IP-based video network, according to which a) a subscriber of the video network is registered as a user of a presence-based service with a presence server on request via his IP-compatible terminal, b) the said server Subscriber is logged on to the presence server by his IP-capable terminal device as soon as his terminal device becomes active, information about the presence status of the subscriber being stored by the presence server as part of the aforementioned registration, c) corresponding presence information about the subscriber mentioned other participants are made available by the presence server when a corresponding query is made using their IP-capable device.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass dem genannten Teilnehmer neben dem Presence-Status auch weitere Video-Netz spezifische Informationen, wie z.B. über tatsächlich genutzten Dienst oder gesehenen Film, übermittelt werden und/oder ausgewertet werden können.2. The method according to claim 1, characterized in that said participant in addition to the presence status and other video network specific information, such as can be transmitted and / or evaluated via the service or film actually used.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass dem genannten Teilnehmer ein Dienst in Abhängigkeit der Presence Informationen, die er mithilfe der genannten Abfrage über andere Teilnehmer erhalten hat, zur Verfügung ge- stellt wird.3. The method as claimed in claim 1 or 2, characterized in that a service is made available to said subscriber as a function of the presence information which he received about other subscribers with the aid of said query.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass auch Teilnehmern eines anderen IP basierten Netzes die genannte Anmeldung bei dem Presence Server ermöglicht wird. 4. The method according to any one of claims 1 to 3, characterized in that subscribers of another IP-based network, the said registration with the presence server is made possible.
5. Presence Server, der a) Presence Daten bezüglich der Teilnehmer eines IP-basierten Video-Netzes speichert, b) die genannten Presence Daten dem IP-fähigen Endgerät eines Teilnehmer auf Anfrage übermittelt .5. Presence server, which a) stores presence data relating to the subscribers of an IP-based video network, b) transmits the presence data mentioned to the IP-compatible terminal of a subscriber on request.
6. Presence Server nach Anspruch 5, mit einer Schnittstelle zu einem Control Server zur Steuerung der Video-Dienste des Video-Netzes, über die der Presence Server abfragen kann, welche Details (Features) bzw. Inhalte ein Video-Teilnehmer über den Dienst zur Zeit nutzt.6. Presence server according to claim 5, with an interface to a control server for controlling the video services of the video network, via which the presence server can query what details (features) or contents a video subscriber has about the service Uses time.
7. IP-fähiges Endgerät eines Videonetzes, das a) eine Teilnehmer-Anfrage nach Presence-Informationen über mindestens einen anderen Teilnehmer des Video-Netzes an einen zentrale Einrichtung des Videonetzes richtet, b) aufgrund der genannten Teilnehmer-Anfrage empfangene Presence-Informationen über den mindestens einen anderen Teilnehmer auf dem TV-Gerät des anfragenden Teilnehmers darstellt.7. IP-capable terminal of a video network which a) directs a subscriber request for presence information about at least one other subscriber of the video network to a central device of the video network, b) presence information received on the basis of the subscriber request mentioned represents the at least one other participant on the TV of the requesting participant.
8. IP-fähiges Endgerät nach Anspruch 6, dadurch gekennzeichnet, dass es dem genannten anfragenden Teilnehmer ermöglicht, einen Kommunikationsdienst zu mindestens einen anderen Teilnehmer zu starten, über den der anfragende Teilnehmer aufgrund der genannten Anfrage Presence-Informationen erhalten hat .8. IP-capable terminal according to claim 6, characterized in that it enables said requesting subscriber to start a communication service to at least one other subscriber, via which the requesting subscriber has received presence information on the basis of said request.
9. IP-fähiges Endgerät nach Anspruch 8, dadurch gekennzeichnet, dass es sich bei dem genannten Kommunikationsdienst um den9. IP-capable terminal according to claim 8, characterized in that it is the said communication service
Dienst "Austausch von Textnachrichten" (Instant messaging) handelt . Service "exchange of text messages" (instant messaging).
10. IP-fähiges Endgerät einem der nach Ansprüche 7 bis 9, dadurch gekennzeichnet, dass es sich bei der zentralen Einrichtung um einen Presence Server handelt .10. IP-capable terminal one of claims 7 to 9, characterized in that the central device is a presence server.
11. IP-fähiges Endgerät nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass es sich bei der zentralen Einrichtung um einen Control Server zum Steuern des Video-Netzes handelt.11. IP-capable terminal according to one of claims 7 to 9, characterized in that the central device is a control server for controlling the video network.
12. IP-fähiges Endgerät nach einem der Ansprüche 7 bis 11, es die genannte Teilnehmer-Anfrage mittels eines IP-basierten Protokolls durchführt.12. IP-capable terminal according to one of claims 7 to 11, it carries out the said subscriber request by means of an IP-based protocol.
12. IP-fähiges Endgerät nach Anspruch 11, dadurch gekennzeichnet, dass es sich bei dem IP-basierten Protokoll um das SIP- Protokoll handelt.12. IP-capable terminal according to claim 11, characterized in that the IP-based protocol is the SIP protocol.
13. IP-fähiges Endgerät nach Anspruch 11, dadurch gekennzeichnet, dass es sich bei dem IP-basierten Protokoll um das HTTP- Protokoll handelt.13. IP-capable terminal according to claim 11, characterized in that the IP-based protocol is the HTTP protocol.
14. IP-fähiges Endgerät, mit einer Applikation (PUA) , die angestoßen durch einen ersten Teilnehmer des Videonetzes mittels eines IP-basierten Protokolls von einem Presence Server Presence-Daten mindestens eines anderen Tln holt und diese auf dem TV-Gerät des ersten Teilnehmers darstellt.14. IP-capable terminal device, with an application (PUA), which is triggered by a first subscriber of the video network using an IP-based protocol from a presence server to obtain presence data from at least one other subscriber and this on the TV set of the first subscriber represents.
15. IP-fähiges Endgerät nach Anspruch 7 oder 14, dadurch gekennzeichnet, dass es sich bei dem IP-fähigen Endgerät um eine STB han- delt. 15. IP-capable terminal according to claim 7 or 14, characterized in that the IP-capable terminal is an STB.
EP05701482A 2004-01-29 2005-01-11 Method for supporting services in an ip-based video network on the basis of subscriber-controlled status information Withdrawn EP1709804A2 (en)

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WO2005074245A2 (en) 2005-08-11
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EP1560435A1 (en) 2005-08-03

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