DE102004032916A1 - Communication system e.g. universal mobile telecommunication system, has subscriber device with control unit for activating broadcast-receiving device at time specified in message that is send to subscriber device by server - Google Patents

Abstract

The system has a broadcast network to transmit data (307) from a server to a subscriber device having a broadcast-receiving device. The server has a signaling device, which sends a message to the subscriber device using a mobile radio network, where the message contains the time at which the receiving device is to be activated. The subscriber device has a control unit, which activates the receiving device at the specified time. The mobile radio network is furnished to transmit data from the server to the subscriber device and vice versa. Independent claims are also included for the following: (A) a method for controlling a communication system with a subscriber device, a broadcast network, a mobile radio network and a server (B) a method for operating a server of a communication system (C) a method for operating a subscriber device of a communication system.

Description

The The invention relates to a communication system, a method for controlling a communication system, a server, a method of operation a server, a subscriber device and a method for operating a user equipment.

In front In short, digital terrestrial television in the form of DVB-T (Digital Video Broadcast Terrestrial).

through DVB-T will be the terrestrial broadcasting of TV programs in particular for stationary and portable receiver carried out.

One DVB-T compatible video broadcast communication service is the for portable and portable devices, such as mobile phones and with a cellular interface provided pocket computers (PDAs), provided DVB-H (Digital Video Broadcast-Handheld).

By Using DVB-H it is possible the for mobile receivers required for the use of the respective video broadcast communication service Power consumption compared to DVB-T significantly reduce. Therefore DVB-H is particularly suitable for small portable devices with receiving device, which has a relatively limited power supply exhibit. For example, this can often be uncomfortable Charging accumulators, which serve the devices for the power supply, be avoided or the operating time of the power supply with extended an accumulator become.

It is provided that by means of DVB-H video signals with much less Transfer data rate than DVB-T, because with DVB-H mainly devices that Low resolution displays (typically 360 by 288 pixels), with video data and because the DVB-H video compression method used H.264 is much more efficient than the DVB-T MPEG-2 video encoding.

It is possible, for example, up to 50 TV programs via a terrestrial TV channel 8 MHz bandwidth to transmit if the TV programs according to DVB-H are coded. That way you can low transmission costs per TV program be achieved and communication services with strict cost restrictions can be operated lucratively.

Next Video signals and audio signals for TV programs and radio programs is it also possible with DVB-H transfer other types of data for example, by embedding the data in data packets according to the Internet Protocol (IP).

One Another modern communication system is the UMTS (Universal Mobile Telecommunications System), one of the ETSI (European Telecommunication Standard Institute) standardized communication system for universal Cellular telecommunications is.

In front In the field of multimedia technology, a UMTS communication system enables i.e. a communication system according to a UMTS standard Reason for the much higher data transfer rates For example, when using a GSM (Global System for Mobile Communication) communication system are provided, the provision powerful Multimedia communication services.

One UMTS communication system has the features of circuit switching the GSM communication systems underlying technology as well the features of the packet switching of the GPRS (General Package Radio Service) on underlying technology and thus fulfills the requirements for a fast data transfer.

Further The UMTS standard has specifications that govern data transport based on the IP (Internet Protocol) and thus provide the Use of UMTS communication systems for one enable wireless based internet access.

One UMTS communication system is a cellular mobile communication system in the data by means of dedicated point-to-point connections in the downlink (downlink) and in the uplink between mobile subscriber devices and the wireless network of the UMTS communication system become.

According to the UMTS standard, the Multimedia Broadcast and Multicast Service (MBMS) is also specified, which simultaneously allows the transmission of the same data to a plurality of mobile subscribers, ie users of the UMTS communication system, also as data transmission by means of point-to-multipoint connections referred to as. In this case, the data to be transmitted from one transmitter to a plurality of receivers is transmitted (ideally) only once (ideally) by means of common connection paths from the transmitter to the receivers. This will require the transfer of data to the recipients to be carried out as part of a communications service bandwidth in the radio network and on the air interface is greatly reduced compared to the transmission of the data via dedicated communication links for each receiver.

In the standardization forum OMA (Open Mobile Alliance) is under consideration Broadcast communication systems, such as DVB-H, and bidirectional Mobile radio techniques, as used in particular in GSM communication systems, used in GPRS and UMTS communication systems with each other to combine. The planned and emerging communication system is referred to as Mobile Broadcast Service (MBS) in the OMA.

in the As part of the development of MBS, it is a goal to have both transmission systems, that is transmission via broadcast network and transmission via mobile network, on the side of each network and on the part of the terminals logical to link, so for one or more devices certain data resource efficient and with optimized quality of service to the terminal or transmit the Engeräte can be.

Further is a goal in the development of the MBS, the users of the communication system using DVB-H resource efficient and cost-effective with multimedia data and to the mobile subscribers by means of a return channel to enable interactive in the transmission the multimedia data intervene and for example the controller and the properties the data transfer too influence.

Possible applications MBS are communication services, such as online games (online games), Dedicated Download (dedicated download), News Broadcast (News Broadcast) to selected Mobile subscribers, etc., as well as control mechanisms, such as for authentication, authorization and negotiation of keys as well Procedures for the billing of the communications services used by mobile subscribers (charging, Billing).

In [1] is a method of transmission disclosed data between transceiver stations, the data transfer by means of a radio transmission system carried out which is based on a plurality of radio transmission systems on a subscriber profile and on the transmission quality for data transmission is selected.

In [2] is a method for realizing instant messaging functions discloses, in which it is provided that a communication terminal by means of of a cellular network transmits data and that Multicast information by means of a separate interface, for example a DVB-T system, transmitted become.

In [3] discloses a method by which transmission problems, by the concurrent operation of a DVB-T receiver and a GSM transmitter in a subscriber device arise, be solved.

In [4] is a method of transmission data disclosed by means of the TCP / IP protocol, wherein IP network modules a communication device for the transfer of data with different communication networks.

pamphlet [5] discloses methods of timing a multi-carrier signal receiver at the impulse response of a transmission channel is calculated.

pamphlet [6] discloses a device for observing electromagnetic Fields.

pamphlet [7] discloses a portable digital television system with a two-channel receiver.

In [8] discloses a device for converting a color temperature, which is set to the color temperature of an input image vary and spend.

pamphlet [9] discloses an arrangement and a method for calculating the Noise in a received signal, with the noise below Use of multiple received data packets is calculated.

As in [10], a radio communication system is known, in which the transmission power, with which data packets are transmitted, to the transmission load is adjusted.

pamphlet [11] discloses a maximum a posteriori decoder (MAP decoder) for a digital one Video broadcast system.

Further is from document [12] a receiver for a digital communication system known in the properties of a communication signal by repeated adjustment are calculated.

pamphlet [13] discloses a DC compensation system for a radio communication system with a DC amplifier, which receives the output of a DC level calculation unit and outputs a DC offset signal.

Of the Invention is the object of a communication system to provide a more efficient use of a broadcast network allows as it is according to the state the technology possible is.

The Task is through a communication system, a method of controlling a communication system, a server, a method of operation a server, a subscriber device and a method for operating a subscriber device with the features according to the independent claims solved.

It becomes a communication system with a user equipment, a Broadcast network, a mobile network and a server provided, the subscriber device a broadcast receiving device; set up the broadcast network is to transfer data from the server to the user equipment; the mobile network is set up, data from the server to the subscriber device and from the subscriber device to transmit to the server; the server has a signaling device that is set up is to send a message to the user equipment by means of the mobile radio network, which message contains parameter values that have at least one time specify to which the broadcast receiving device is activated shall be; and the subscriber device has a control unit, which is adapted to the broadcast receiving device to the at least to activate a specified time.

A The idea underlying the invention can be seen therein. that the broadcast receiving device operated only by the subscriber device if this is actually required is what the server through the mobile network in a message intended for this purpose is signaled.

This has the advantage that the broadcast receiving device essential less than according to the state The technology is operated, resulting in a significant energy savings allows.

Especially with mobile receivers this is advantageous since these are typically by means of accumulators be energized and charged by the user Need to become. The Energy savings achieved by the invention reduce the number the required recharging, what allows a more convenient use of the subscriber device and in particular a longer Operation of the user equipment allows if not a possibility is available to recharge the accumulator, for example, while traveling.

It is guaranteed that the energy needed Broadcast receiving device for receiving a broadcast signal only then is activated when the broadcast signal is actually received by the user equipment shall be.

Further discloses a method for controlling a communication system Server, a method for operating a server, a subscriber device and a Method for operating a subscriber device according to the communication system described above provided.

preferred Further developments of the invention will become apparent from the dependent claims. The others Embodiments of the invention, in connection with the provided Communication system are described, apply mutatis mutandis to the provided Method for controlling a communication system, the server, the Method for operating a server, the subscriber device and the Method for operating a subscriber device.

It it is preferred that the broadcast receiving device is set up is after its activation data transmitted via the broadcast network be, receive and / or the broadcast network reception situation to eat.

Especially generated in one embodiment the subscriber device Measurements showing the reception quality and availability of the broadcast network by the subscriber equipment and transmits them Measurements to the server, for example, as part of "Measurement Reports", which are also measured values included, the reception quality and availability of the mobile network the subscriber device specify, for example, the reception level. This can be done periodically, in case of changes the reception quality and availability and / or on request of the server.

clear spoken the subscriber device signals the broadcast network relevant characteristics of the subscriber device, for example, the reception situation and the availability of the Broadcast network, using the air interface to the responsible Network unit, that is, broadcast network reception parameters be by means of a channel of the mobile network as feedback of the subscriber device transferred to the server.

The availability and the reception situation of the broadcast network and of the mobile radio network are clearly described the subscriber device managed by the communication system.

The Measuring the availability and the receiving situation of the broadcast network and sharing allows these values to the server it that the server decides whether to enable the broadcast receiving device and the transmission of data by means of the broadcast network in the light of the reception situation makes sense.

The Data transmitted via the broadcast network is stored in an embodiment provided by an application server to the server, the in this embodiment MBS server indicates whether data is destined for multiple recipients are and the addresses of the recipients signaled. Furthermore, the application server signals in one embodiment, what quality requirements to the transmission data, such as the maximum allowable delay, the permissible Error rate and the allowed Packet loss.

In an embodiment chooses the Server for to be transferred Data the most appropriate transmission system, this means Broadcast network or mobile network, and the most appropriate Transport channel for the transfer the data from, for example, based on the reception situation and availability of the broadcast network through the subscriber device.

clear the transmission resources are spoken as possible efficient use of the available standing transmission channels network side managed.

In an embodiment will be transferred Data cached and retransmitted if at the first transmission of the Data errors have occurred.

It it is preferred that the control device is set up, the Broadcast receiving device after receiving the data and / or to disable the measuring of the broadcast network reception situation.

On This way, a high energy saving can be achieved.

Preferably if the signaling device is set up, a deactivation message to the subscriber device to send which deactivation message contains parameter values that specify at least one deactivation time to which the broadcast receiving device should be deactivated and the Control unit is set up, the broadcast receiving device to the at least one specified deactivation time deactivate.

On This way can be achieved by the broadcast receiving device is activated, if necessary, by a maximum energy savings can be achieved.

It is also preferred that by means of the broadcast network data transferred in the carousel process and the specified time indicates a point in time opposite the last transfer run updated data transmitted via the broadcast network become.

at a transmission data in the carousel process, the data in cyclic Retransmission transmitted. The data must are not transmitted exactly cyclically repeated but can compared to the last transmission run changed or be updated.

clear corresponds to a data transfer in the carousel process a transmission Teletext to a TV.

Preferably is the broadcast network according to DVB-T (Digital Video Broadcast Terrestrial), DVB-H (Digital Video Broadcast Handheld), ISDB-T (Integrated Services Digital Broadcasting - Terrestrial transmission), DRM (Digital Radio Mondial), DAB / DMB (Digital Audio Broadcast / Digital Multimedia Broadcast), 3GPP / MBMS (Multimedia Broadcast and Multicast Service according to the 3GPP standard) and / or 3GPP2 / BCMCS (Broadcast and Multicast Service according to the 3GPP2 standard) designed.

It is further preferred that the mobile network is a cellular Mobile network is and particularly preferred according to the UMTS standard, configured according to the GSM standard or the GPRS standard is.

In an embodiment, the independent of the provided communication system and independent of the independent one Patent request can be realized, becomes a communication system with a subscriber device, a server, a signaling device and a communication network provided, wherein the subscriber device is a receiving device having; the communication network is set up, data from the server to the subscriber device transferred to, and the signaling device is set up, a message to transfer to the server which message contains values of parameters that have at least one time to which the receiving device transmitted via the communication network Can receive data.

Preferably the subscriber device has a additional Signaling device that is set up an additional Message to the signaling device, which additional Message contains values of parameters that have at least one time to which the receiving device transmitted via the communication network Can receive data.

Preferably the communication network is a broadcast network and the receiving device a broadcast receiving device.

It it is preferred that the communication system further comprises a mobile radio network and the additional Message by means of the mobile network from the additional Signaling device is sent to the signaling device.

Preferably is the broadcast network according to DVB-T, DVB-H, ISDB-T, DRM, DAB / DMB, 3GPP / MBMS and / or 3GPP2 / BCMCS.

It It is further preferred that the mobile network according to the UMTS standard, designed according to the GSM standard or the GPRS standard.

embodiments The invention is illustrated in the figures and will be discussed below explained in more detail.

1 shows a communication system according to an embodiment of the invention.

2 shows a message flow diagram according to an embodiment of the invention.

3 shows a message flow diagram according to an embodiment of the invention.

4 shows a message flow diagram according to an embodiment of the invention.

1 shows a communication system 100 according to an embodiment of the invention.

The communication system 100 has an MBS (Mobile Broadcast Service) server 101 on.

The MBS server 101 is using an MMS (Multimedia Messaging Service) server 102 , a PSS (Packet Switched Streaming) server 103 and more servers 104 coupled.

A subscriber device 105 is by means of a broadcast network 106 and a mobile network 107 with the MBS server 101 coupled.

The broadcast network 106 has DVB-H units 111 on which the data transfer from the MBS server 101 to the subscriber device 105 via DVB-H.

The mobile network 107 has MBMS (Multimedia Broadcast Multicast Service) units 108 on which the data transfer from the MBS server 101 to the subscriber device 105 using MBMS.

The mobile network 107 also has GPRS / GSM units 109 on which the data transmission from the subscriber device 105 to the MBS server 101 as well as the data transfer from the MBS server 101 to the subscriber device 105 using GPRS (General Packet Radio Service) and / or GSM (Global System for Mobile Communications).

The subscriber device 105 is for example a mobile phone that is provided with a DVB-H receiving unit and with a UMTS transceiver unit.

The communication system 100 has further user equipment (not shown) which is analogous to the user equipment 105 are arranged.

The broadcast network 106 , the mobile network 107 , the MBS server 101 , the MMS server 102 , the PSS server 103 and the other servers 104 are part of a communication network 110 ,

Users may be using subscriber devices, such as the user equipment 105 , Data to the communication network 110 transmit and data from the communication network 110 received, for example, for communication with other users or for the use of the communication network 110 provided communication services.

The MBS server 101 can as the central unit of the communication network 110 be considered. It collects information about which subscribers, ie users, are to be reached, how these subscribers can be reached, for example under which mobile telephone number, and controls in the event of a request from a data server, ie the MMS server 102 , the PSS server 103 or one of the other servers 104 of the communication network 110 for transmitting data to one or more users, the data transmission using the most appropriate transport channel provided by the broadcast network 106 or from the mobile wireless network 107 provided.

The data to be transmitted are from the MMS server 102 , from the PSS server 103 or one of the other servers 104 provided. A server of the other servers 104 can be any server that provides data based on the Internet Protocol (IP) or equivalent protocol for mobile systems, such as the Wireless Application Protocol (WAP).

A server of the other servers 104 is, for example, a download server that provides songs in the form of compressed audio files for download to subscriber devices.

provides one of the data server data for transmission to one or more users ready to be next to those to be transferred Data also includes information from the data server to the MBS server Controlling the data transmission Posted.

• – Eine oder mehrere Adressen von Empfängern oder Empfängergruppen (d.h. eine Liste von Empfängern), an die die Daten übertragen werden sollen, mittels welcher Adresse(n) der Empfänger adressiert werden kann bzw. die Empfänger adressiert werden können.
• – Eine Gruppen-Adresse einer Gruppe von Empfängern, an die die Daten übertragen werden sollen, beispielsweise eine Multicast-Adresse oder eine MBMS-Adresse gemäß dem 3GPP (Third Generation Partnership Project)-UMTS-Standard.
• – Ein Gruppenindikator, d.h. eine Signalisierung, die angibt, dass eine Gruppen-Adresse an den MBS-Server 101 von dem Datenserver übertragen wurde, welcher Gruppen-Indikator in einer Ausführungsform auch die Anzahl der Mitglieder der Gruppe enthält. Die Information, dass eine Gruppen-Adresse übertragen wurde, ist wichtig, wenn der MBS-Server 101 nicht an Hand der Adresse erkennen kann, dass die Adresse eine Gruppe von Empfängern adressiert und wie viele Mitglieder diese Gruppe hat. Der MBS-Server 101 kann basierend auf dieser Information die Entscheidung treffen, ob die Datenübertragung mittels einer dedizierten Funkverbindung mittels des Mobilfunk-Netzwerks 107 oder mittels einer Broadcast-Übertragung mittels des Broadcast-Netzwerks 106 durchgeführt werden soll.
• – Anforderungen an die Datenübertragung betreffend die Datenrate, die Dauer der Übertragung, das Datenvolumen, die maximale Verzögerung der Datenübertragung und die Zulässigkeit von Übertragungsfehlern.

For example, these are the following information:

• - One or more addresses of recipients or recipient groups (ie a list of recipients) to which the data is to be transmitted, by means of which address (s) the recipient can be addressed or the recipients can be addressed.
• A group address of a group of recipients to which the data is to be transmitted, for example a multicast address or MBMS address according to the 3GPP (Third Generation Partnership Project) UMTS standard.
• - A group indicator, ie a signaling that indicates that a group address to the MBS server 101 from the data server, which group indicator in one embodiment also contains the number of members of the group. The information that a group address has been transmitted is important when the MBS server 101 can not tell by the address that the address is addressing a group of recipients and how many members this group has. The MBS server 101 Based on this information, the decision can be made as to whether the data transmission by means of a dedicated radio connection by means of the mobile radio network 107 or by means of a broadcast transmission by means of the broadcast network 106 to be carried out.
• - Requirements for data transmission concerning the data rate, the duration of the transmission, the data volume, the maximum delay of the data transmission and the admissibility of transmission errors.

• – Informationen über die Erreichbarkeit des oder der Empfänger mittels des Mobilfunk-Netzwerks 107 und Informationen über die Erreichbarkeit der Empfänger mittels des Broadcast-Netzwerks 106.
• – Informationen über die voraussichtliche Erreichbarkeit des oder der Empfänger mittels des Mobilfunk-Netzwerks 107 und Informationen über die vorrausichtliche Erreichbarkeit des oder der Empfänger mittels des Broadcast-Netzwerks 106. Diese Informationen werden durch eine Vorhersage bestimmt, die auf Positionsinformationen, Geschwindigkeitsinformationen und Richtungsinformationen in Kombination mit Informationen über die geographische Verfügbarkeit des Mobilfunk-Netzwerks 107 bzw. des Broadcast-Netzwerks 106 basiert. Beispielsweise könnte das Teilnehmergerät 105 in einem Fahrzeug betrieben werden und mit einem Navigationssystem des Fahrzeugs gekoppelt sein, das dem Teilnehmergerät Informationen über die Fahrtroute des Fahrzeugs zuführt. Basierend darauf und auf der Information, in welchen geographischen Bereichen das Broadcast-Netzwerk 106 und/oder das Mobilfunk-Netzwerk 107 verfügbar ist, kann eine Vorhersage über die Verfügbarkeit des Teilnehmergeräts 105 getroffen werden.
• – Informationen über die jeweilige Netzauslastung, beispielsweise die bei dem Broadcast-Netzwerk 106 zur Verfügung stehende Datenrate.
• – Informationen über die Empfangssituation der einzelnen Empfänger oder Informationen über die Empfangssituation von Empfängergruppen, so dass beispielsweise vor der Datenübertragung an die Empfänger eingeschätzt werden kann, ob eine Datenübertragung mittels des Broadcast-Netzwerks 106 erfolgreich sein wird.

The MBS server 101 communicates further with the broadcast network 106 as well as with the mobile network 107 This gives you the following information, for example:

• - Information about the reachability of the recipient (s) via the mobile network 107 and information about the reachability of the receivers via the broadcast network 106 ,
• - Information about the probable reachability of the recipient (s) via the mobile network 107 and information about the probable reachability of the receiver (s) via the broadcast network 106 , This information is determined by a prediction based on location information, speed information and direction information combined with information about the geographic availability of the cellular network 107 or the broadcast network 106 based. For example, the subscriber device could 105 be operated in a vehicle and be coupled to a navigation system of the vehicle, which provides the user equipment information about the route of the vehicle. Based on this and on the information in which geographical areas the broadcast network 106 and / or the mobile network 107 is available, can predict the availability of the subscriber device 105 to be hit.
• - Information about the respective network load, such as the broadcast network 106 available data rate.
• - Information about the reception situation of the individual receivers or information about the reception situation of receiver groups, so that, for example, before the data transmission to the receiver can be estimated, whether a data transmission by means of the broadcast network 106 will be successful.

• – Adressübersetzung von einer Adresse auf der Schnittstelle zwischen Datenserver und MBS-Server 101, d.h. eine Adresse, mittels welcher ein Datenserver beispielsweise das Teilnehmergerät 105 adressiert, in eine Adresse zwischen MBS-Server 101 und den Teilnehmergeräten, d.h. in eine Adresse, mittels welcher der MBS-Server 101 beispielsweise das Teilnehmergerät 105 adressiert, zu übersetzen. Die Adresse, mittels welcher der MBS-Server 101 beispielsweise das Teilnehmergerät 105 adressiert kann spezifisch für das von dem MBS-Server 101 für die Datenübertragung ausgewählte Übertragungssystem, d.h. das Broadcast-Netzwerk 106 oder das Mobilfunk-Netzwerk 107, sein und kann auch die Adresse einer Gruppe von Empfängern sein.
• – Zwischenspeicherung von zu übertragenden Daten, bis auf dem ausgewählten Übertragungssystem ausreichend Kapazität zum Übertragen der Daten frei ist.
• – Aufteilung der zu übertragenden Daten in Datenpakete mit einer für das ausgewählte Übertragungssystem geeigneten Größe.
• – Nummerierung der Datenpakete zur Wiederherstellung der Reihenfolge der Datenpakete nach der Datenübertragung.
• – Generierung von Abrechnungsinformationen unter Berücksichtigung des ausgewählten und verwendeten Übertragungssystems.
• – Anpassung der Inhalte der zu übertragenden Daten bezüglich der Darstellungsformate und der Eigenschaften der Inhalte unter Berücksichtigung des ausgewählten und verwendeten Übertragungssystems.
• – Zwischenspeicherung von zu übertragenden Daten bis der korrekte Empfang der Daten bzw. der Datenpakete, in die die Daten aufgeteilt sind, von bestimmten Empfängern bestätigt wurde.

Furthermore, the MBS server has 101 the following tasks:

• - Address translation from an address on the interface between the data server and the MBS server 101 ie an address by means of which a data server, for example the subscriber device 105 addressed, in an address between MBS server 101 and the user equipment, ie in an address, by means of which the MBS server 101 for example, the subscriber device 105 addressed, translate. The address by which the MBS server 101 for example, the subscriber device 105 This can be specific to that of the MBS server 101 transmission system selected for data transmission, ie the broadcast network 106 or the mobile network 107 , and can also be the address of a group of recipients.
• - Caching of data to be transmitted, except for the selected transmission system has sufficient capacity to transfer the data.
• - Division of the data to be transmitted into data packets with a size suitable for the selected transmission system.
• - Numbering of the data packets to restore the order of the data packets after the data transmission.
• - Generation of billing information taking into account the selected and used transmission system.
• - Adaptation of the content of the data to be transmitted with regard to the presentation formats and the properties of the content, taking into account the selected and used transmission system.
• - Caching of data to be transmitted until the correct receipt of the data or data packets into which the data is divided has been confirmed by certain recipients.

For the subscriber device 105 comprising a broadcast service receiving module, such as DVB-H, by means of which the broadcast network 106 Transmits data, the operation of the receiving module means a significant power consumption. The running time of the accumulator of the subscriber device 105 This typically shortens significantly.

The MBS server 101 informs the user equipment, for example the user equipment 105 , via the mobile network 107 about whether, at a time in the near future, data transmission through the broadcast network 106 to the respective subscriber device, for example the subscriber device 105 , will take place and informs the respective user equipment if necessary about the time.

• – Datum und Uhrzeit, die den Zeitpunkt spezifizieren, zu dem die Datenübertragung startet; oder vorzugsweise
• – Datum und Uhrzeit, die den Zeitpunkt spezifizieren, an dem das Teilnehmergerät 105 das DVB-H-Empfangsmodul aktivieren soll;
• – das aktuelle Datum und die aktuelle Uhrzeit zur Synchronisierung der Uhr in dem Teilnehmergerät 105;
• – Werte von Übertragungsparametern für die Datenübertragung zu dem Teilnehmergerät 105 mittels des Broadcast-Netzwerks 106, beispielweise bestehend aus: Frequenz, Modulationsparameter (beispielsweise die DVB-H-Trägeranzahl), Werte von Fehlerschutzparametern, Datenstrom-Identifikation und Stromnummer (beispielsweise die Nummer des Datenstroms im verwendeten MPEG2-transport stream);
• – Werte von Zugriffsparametern für die übertragenen Daten, beispielsweise Rechteobjekte für DRM (Digital Rights Managment)-geschützte Daten; der Vorteil hierbei ist, dass für die Werte der Zugriffsparameter und für die geschützten Daten unterschiedliche Übertragungswege verwendet werden und somit eine hohe Sicherheit vor unautorisierter Nutzung der Daten erreicht wird.

For this purpose, a so-called push service can be realized, in which the initiative for a data transmission from the communication network 110 emanates. The MBS server 101 uses, for example, the functionality of WAP (Wireless Application Protocol) push and transmits a short message, for example, to the user equipment 105 containing the following information:

• Date and time specifying the time when the data transfer starts; or preferably
• - Date and time specifying the time at which the subscriber device 105 activate the DVB-H reception module;
• - the current date and time to synchronize the clock in the user equipment 105 ;
• Values of transmission parameters for the data transmission to the subscriber device 105 by means of the broadcast network 106 consisting, for example, of: frequency, modulation parameters (for example the DVB-H carrier number), values of error protection parameters, data stream identification and stream number (for example the number of the data stream in the MPEG2 transport stream used);
• Values of access parameters for the transmitted data, for example rights objects for DRM (Digital Rights Management) protected data; the advantage here is that different transmission paths are used for the values of the access parameters and for the protected data and thus high security against unauthorized use of the data is achieved.

By means of a push service, for example, messages of the multimedia messaging service provided by the MMS server unit 2 can be transmitted. These messages have multimedia content, and therefore have a large amount of data, so that transmission by means of a broadcast system, such as the broadcast network 106 makes sense.

The transmission by means of a broadcast system is particularly useful when a certain multimedia content is to be transmitted to multiple recipients, for example, a communication service, the scenes of football matches in the form of video sequences, such as a short section of a football game in the just Goal is scored to several recipients who have subscribed to the communication service. In this case, the MMS server sends 102 a message with the multimedia content to be transmitted and a list of recipients to the MBS server 101 , The MBS server 101 then determines, by means of which transmission system, ie by means of the broadcast network 106 or via the mobile network 107 which receivers are best reached. Accordingly, the MBS server selects 101 for each recipient an individual delivery method.

For example, are several receivers in the receiving area of a DVB-H transmitter of the broadcast network 106 so can the MBS server 101 send these recipients a push message, for example by means of a WAP push communication service, and in this way cause the subscriber devices of these receivers to receive a specific data stream from a specific broadcast channel with the receiving module of the respective subscriber device.

Subsequently, the video sequence is transmitted on this broadcast channel and thus made accessible to all receivers in the reception area of the DVB-H station. The transmitted messages can be either kom Plett can be transmitted by means of the broadcast channel or the signaling and the basic elements of the messages are transmitted by means of mobile radio channels using the mobile network 107 are transmitted to the user equipment and only the multimedia elements of the messages, which typically form a majority of the data volume of the messages, are transmitted to one or more of the user equipments by the broadcast channel.

The communication network 110 also provides data services in the carousel process. In the carousel process, data is transmitted via the broadcast network 106 transmitted in cyclic repetition, so that in a receiving device, such as the user equipment 105 Over time, the complete set of transmitted data can be received and cached.

clear this corresponds to the transmission of Teletext to a TV.

at every transmission run, i.e. at each cyclic repetition, the transmitted data can be either be repeated exactly or from the data in the previous one Transfer pass were, deviate, i. vividly that changes are incorporated.

As mentioned above, a mobile terminal such as the user equipment exists 105 The problem is that too much energy is required for a continuous reception of the data transmitted by means of the carousel method in order to be able to operate the mobile terminal comfortably for the user. If, on the other hand, the data offer is received only at certain time intervals and stored on the terminal, the current information may not be immediately available due to the changes involved.

Therefore the service provider, i. for example, the communication service Providing data servers, when changing the record, the transmitted in cyclic repetition will, before the transfer of the changed Record a notification to the terminal, for example by means of WAP push, and thus causes the terminal to make the changes on the next pass of the record, i. to receive and store. In this way it is achieved that the current data is present on the terminal and thus be retrievable by the user and yet a lesser Energy requirement of the receiving device of the terminal is required.

In one embodiment, the user equipment operates 105 his broadcast reception module continuously and reports any change in the reception situation, which meets certain criteria, by signaling by means of a mobile radio channel, that of the mobile network 107 is provided to the MBS server 101 , The MBS server 101 saves and manages the reception situation for the subscriber device in a database 105 and possibly other receivers. Is a request from a data server for the transmission of data to one or more receiving devices to the MBS server 101 transmitted, it can decide based on the entries in the database, by means of which transmission system he can transfer the data to be transmitted to the or the receiving device (s).

This embodiment has the disadvantage that the subscriber device 105 the reception quality of the broadcast network must continuously or at least in short time intervals check and the energy needs of the user equipment 105 This is considerably increased.

In another embodiment, monitoring of broadcast network availability is described below with reference to FIG 2 explained.

The following is an example of the monitoring of the broadcast network availability of a terminal, ie the availability of, for example, the user equipment 105 by means of the broadcast network 106 , regarding 1 and 2 explained.

2 shows a message flow diagram 200 according to an embodiment of the invention.

The in 2 The message flow shown is between an MBS server 201 and a terminal 202 instead of. The terminal 202 corresponds to the subscriber device 105 and the MBS server 201 corresponds to the MBS server 101 and the MBS server 201 and the terminal 202 are how it relates to 1 has been explained, arranged and designed.

The terminal 202 has a mobile modem 203 on it's the terminal 202 enabled, by means of the mobile network 107 Data about the MBS server 101 to transfer and data from the MBS server 101 to receive, as well as a broadcast module 204 that it's the terminal 202 allows data to be sent to the MBS server 101 by means of the broadcast network 106 transmits to receive.

For the use of the broadcast network 106 To transfer data to one or more recipients it is important that the MBS server 101 known before the start of data transmission is whether the reception of the transmitted data by the terminal used by the respective receiver will be possible. This can be done by the MBS server 101 constantly or as needed, ie when requesting a data server for the transmission of data, the reachability of the receiver (s) by means of the broadcast network 106 determine.

The terminal 202 operates the broadcast module 204 only on request of the MBS server 201 ,

In step 205 signals the MBS server 201 by means of an appropriate message that the terminal 202 to perform a measurement of the broadcast network reception situation. This message is sent via the mobile network 107 to the terminal 202 transmitted and by means of the mobile modem 203 from the terminal 202 receive.

In step 206 operates the terminal 202 the broadcast module 204 and measures the reception situation of the broadcast network 106 that is, it measures, for example, whether and how well data transmitted by the broadcast network from the broadcast module 204 can be received.

In step 207 transmits the terminal 202 the results of the measurement via the mobile network 107 to the MBS server 201 ,

This has the advantage of having the broadcast module 204 must be operated only briefly to measure the reception situation, whereby a low energy consumption is achieved. Furthermore, current measured values are always available for the decision of the MBS server 201 uses which transmission system is used to transmit the data.

In the following, an example of the transmission of data by means of a broadcast channel, that of the broadcast network 106 is provided with reference to 1 and 3 explained.

3 shows a message flow diagram 300 according to an embodiment of the invention.

The in 3 The message flow shown is between an application server 301 , an MBS server 302 and a terminal 303 instead of. The terminal 303 corresponds to the subscriber device 105 , the MBS server 302 corresponds to the MBS server 101 and the application server 301 corresponds to the MMS server 102 , the PSS server 103 or one of the other servers 104 , The application server 301 , the MBS server 302 and the terminal 303 are how it relates to 1 above, arranged and designed. Analogous to the in 2 the arrangement shown, the terminal has a mobile radio modem 304 as well as a broadcast module 305 on.

In step 306 the application server sends 301 dates 307 to the MBS server 302 for transmission to the terminal 303 and possibly to other terminals, which are not shown for reasons of clarity.

The MBS server 302 determined, for example, according to one of the variants described above, the receiving situation of the terminal 303 in terms of the broadcast network 106 and decides the data in this example 307 using one of the broadcast network 106 broadcast channels provided.

The following steps are for the other, not shown terminals to which the data 307 to be transmitted, analogous to the terminal 303 , which is described below, carried out.

In step 308 announces the MBS server 302 the terminal 303 using one of the cellular network 107 provided mobile radio channel an upcoming data transmission, which is carried out by means of a broadcast channel, by means of a corresponding message.

The message contains the information for receiving the transmitted data 307 required parameter values such as the transmission frequency, a specification of the broadcast signal used, the bandwidth of the transmission signal, values of modulation parameters and error protection parameters, address information such as the packet numbers, types and formats of the data to be transmitted, and the start time of the data transmission in the form a relative time or an absolute time.

In step 309 activates the terminal 303 automatically and in time, using the in step 308 transmitted message, the broadcast module 305 to receive the data 307 ,

In step 310 transmits the MBS server 302 the data 307 by means of the broadcast network 106 to the terminal 303 which the data 307 using the broadcast module 305 receives. The data transmission takes place with the least possible expenditure of transmission capacity and energy requirement of the broadcast module 305 ,

In one embodiment, after the transmission of the data 307 from the terminal 303 , for example initiated by the MBS server 302 , a confirmation message to the MBS server via the mobile network 107 Posted.

If the terminal 303 the data 307 can not receive, for example because the broadcast network 106 currently is not available or because there are certain transmission parameters or data formats of the data to be transmitted 307 not supported, sends the terminal 303 corresponding information via the mobile network 107 to the MBS server 302 ,

The MBS server 302 In this case, you can choose an adapted type of transmission, which may also be done via the mobile network 107 can be done.

The following is an example of a data transfer in the carousel mode, ie by means of a carousel method, with reference to 1 and 4 explained.

4 shows a message flow diagram 400 according to an embodiment of the invention.

The in 4 The message flow shown is between an application server 401 , an MBS server 402 as well as a terminal 403 instead, with reference to above 3 and 1 are arranged and configured described. In particular, the terminal has 403 a mobile modem 404 as well as a broadcast module 405 on.

The transmission of data via a broadcast channel to many terminals is suitable for data of general interest, which typically requires frequent updates. The following is an example of the transmission of such data by the communication system 100 explained.

For step 406 transmitted by the application server 401 the data to be transmitted 407 to the MBS server 402 , The data 407 , For example, a selection of web pages of an Internet portal to the terminal 403 be transmitted, so that the terminal 403 the data 407 in a memory of the terminal 403 can save, so that the user of the terminal 403 on the data 407 can access, for example, transmitted web pages directly from the memory of the terminal to itself by means of a screen of the terminal 403 can show. In this way is an efficient transfer of data 407 and a comfortable use without long waiting times, in case of an individual transmission of the data 407 would arise, possible. As mentioned, the data is 407 of such a nature that they are from the application server 401 be updated from time to time. Thus the memory of the terminal 403 always gets the latest data, it is necessary that the data 407 to the terminal 403 However, it is not required that the terminal 403 the data 407 , which are transmitted in cyclic repetition in this example, will receive until the data 407 from the application server 401 have been updated and accordingly updated data 413 be available.

In step 408 therefore signals the MBS server 402 with a certain lead time, for example a few seconds, by means of an appropriate message that the terminal 403 at a certain time in the future, which is relatively or absolutely specified in the message, the broadcast module 408 should activate and the data 407 should receive and in a memory of the terminal 403 should save.

In step 409 activates the terminal 403 after receiving this message through the mobile network 107 was transferred to the broadcast module 405 ,

In step 410 at the specified time, the transmission of the data 407 by means of a broadcast channel coming from the broadcast network 106 is provided. The data transfer is completed by a signal indicating that the data 407 were completely transmitted and the broadcast module 405 can be disabled. This signal can be in the data 407 itself integrated or can be transmitted by means of an additional message. The terminal 403 , which should have saved the current data with minimal energy expenditure, then switches to step 411 the broadcast module 405 off and keeps the data 407 for polling by the user of the terminal 403 in the memory of the terminal 403 ready and waiting for a new signaling through the mobile network 107 that indicates updated data 413 can be received by means of a broadcast channel. If the application server 401 the data 407 has updated, so he transfers in step 412 the updated data 413 to the MBS server 402 ,

The updated data 413 will now be analogous to those in the steps 408 to 411 carried out data transmission of the data 407 transfer.

If the updated data 413 can also be transmitted in cyclic repetition, a terminal at any time, the updated data 413 receive and save this and on signaling the MBS server 402 wait, indicating that refreshed data is available and then receiving it.

Vividly, an end can be So device to synchronize at any time by receiving the currently transmitted data and then analogous to the terminal 403 to the message of the MBS server 402 wait, which signals that updated data is available.

In This document cites the following publications:

• [1] DE 199 57 642 A1
• [2] DE 101 16 246 A1
• [3] WO 03/105386 A2
• [4] EP 1 389 852 A1
• [5] WO 97/26742 A1
• [6] EP 1 233 273 A2
• [7] FR 2786048 A1
• [US] 2003/063799 A1
• [9] US 2003/076900 A1
• [10] WO 01/080445 A2
• [11] WO 00/059118 A1
• [12] US 2003/152170 A1
• [13] WO 02/29968 A2

100

communication system

101

MBS server

102

MMS server

103

PSS server

104

Further server

105

UE

106

Broadcast network

107

Mobile network

108

MBMS units

109

GPRS / GSM units

110

Communication network

111

DVB-H units

200

Message flow diagram

201

MBS server

202

terminal

203

cellular modem

204

broadcast module

205-207

processing steps

300

Message flow diagram

301

application server

302

MBS server

303

terminal

304

cellular modem

305

broadcast module

306

processing step

307

dates

308-310

processing steps

400

Message flow diagram

401

application server

402

MBS server

403

terminal

404

cellular modem

405

broadcast module

406

processing step

407

dates

408-412

processing steps

413

updated dates

Claims (16)

Communication system with a subscriber device, a Broadcast network, a mobile network and a server, wherein - The user equipment a broadcast receiving device having; - the Broadcast network is set up to transfer data from the server to the UE transferred to; - the mobile network is set up, data from the server to the subscriber device and from the subscriber device to transmit to the server; - the server having a signaling device that is set up, send a message to the user equipment via the mobile network, which message contains parameter values that have at least one time specify to which the broadcast receiving device will be activated should; - the UE a control unit that is configured, the broadcast receiving device to activate at least one specified time. The communication system of claim 1, wherein the broadcast receiving device is set up after its activation data transmitted through the broadcast network be received and / or to measure the broadcast network reception situation. Communication system according to claim 2, wherein the control device is set up, the broadcast receiving device after receiving the data and / or measuring the broadcast network reception situation to disable. Communication system according to one of claims 1 to 3, wherein the signaling device is set up by means of the mobile network to send a deactivation message to the user equipment, which deactivation message contains parameter values that specify at least one deactivation time to which the broadcast receiving device should be deactivated and the Control unit is configured, the broadcast receiving device to the at least disable a specified deactivation time. Communication system according to one of claims 1 to 4, wherein by means of the broadcast network factory data are transmitted in cyclic repetition and the specified time indicates a time at which compared to the last transmission cycle updated data is transmitted via the broadcast network. Communication system according to one of claims 1 to 5, wherein the broadcast network according to DVB-T, DVB-H, ISDB-T, DRM, DAB / DMB, 3GPP / MBMS and / or 3GPP2 / BCMCS. Communication system according to one of claims 1 to 6, the mobile network according to the UMTS standard, the GSM standard or the GPRS standard. Communication system according to one of claims 1 to 7, where - the Communication system a communication network and a second Signaling device comprises; - The subscriber device has a receiving device; - the communication network is set up to transfer data from the server to the user equipment, and the second signaling device is set up, a second message to the server, which second message Contains values of parameters, specify the at least one time to which the receiving device receive data transmitted by the communication network can. The communication system of claim 8, wherein the subscriber device is a third Signaling device which is set up a third Message to the second signaling device, which third message contains values of parameters that specify at least one time at which the receiving device by means of the communication network transmitted data can receive. A communication system according to claim 8 or 9, wherein the communication network the broadcast network and the receiving device the Broadcast receiving device is. A communication system according to claim 9 or 10, wherein the third message by means of the mobile network from the third Signaling device to the second signaling device is sent. Method for controlling a communication system with a subscriber device, a broadcast network, a mobile network and a server, wherein according to the method - the server sends a message to the user equipment via the mobile network, which message contains parameter values that have at least one time to which a broadcast receiving device of the subscriber equipment is activated shall be; - the UE the broadcast receiving device to the at least one specified Time activated. Server of a communication system that has a broadcast network and a Mobile network has, wherein - The server is a signaling device which is established by means of the mobile radio network a message to a subscriber device of the communication system to send which message contains parameter values that have at least one time to which a broadcast receiving device of the subscriber equipment is activated shall be. Method for operating a server of a communication system, a subscriber device, a Broadcast network and a mobile network, according to the method - the server by means of the mobile radio network, a message to a subscriber device of the communication system sends which message contains parameter values that are at least one time to which a broadcast receiving device of the subscriber equipment is activated shall be. UE a communication system that is a broadcast network, a cellular network and a server, wherein - The user equipment a broadcast receiving device having; - the UE a receiving device which is set up by means of the mobile network receive a message from the server, which message parameter values contains specifying at least one time at which the broadcast receiving device to be activated; - the UE a control unit that is configured, the broadcast receiving device to activate at least one specified time. A method of operating a subscriber device of a communication system comprising a broadcast network, a mobile network and a server, wherein according to the method - the subscriber device receives, via the mobile network, a message from the server, which message contains parameter values containing at least one Specify the time at which a broadcast receiving device of the user equipment is to be activated; - The user equipment before the broadcast reception direction at the at least one specified time.