EP1659792A1 - Radiodiffusion numérique pour des régions avec une puissance de transmssion basse - Google Patents

Radiodiffusion numérique pour des régions avec une puissance de transmssion basse Download PDF

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Publication number
EP1659792A1
EP1659792A1 EP04105974A EP04105974A EP1659792A1 EP 1659792 A1 EP1659792 A1 EP 1659792A1 EP 04105974 A EP04105974 A EP 04105974A EP 04105974 A EP04105974 A EP 04105974A EP 1659792 A1 EP1659792 A1 EP 1659792A1
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EP
European Patent Office
Prior art keywords
data
programs
communication device
broadcast
mobile communication
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Withdrawn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
EP04105974A
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German (de)
English (en)
Inventor
Rudolf Ritter
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.)
Swisscom AG
Original Assignee
Swisscom Mobile AG
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 Swisscom Mobile AG filed Critical Swisscom Mobile AG
Priority to EP04105974A priority Critical patent/EP1659792A1/fr
Priority to US11/283,860 priority patent/US20060109808A1/en
Publication of EP1659792A1 publication Critical patent/EP1659792A1/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/90—Wireless transmission systems
    • H04H60/91—Mobile communication networks

Definitions

  • the present invention relates to a method, a device, a mobile communication device and a system for the transmission of programs and / or data, which are unidirectionally distributed by a broadcast transmitter.
  • the present invention relates to a method, a device, a mobile communication device and a system for the transmission of programs and / or data according to the respective preambles of independent claims 1, 9, 12 and 13.
  • Broadcasting systems containing broadcast broadcasters and broadcast receivers containing digital audio programs (radio programs) or video programs (television programs) and digital data, for example data for the execution of data services or program-related data relating to the programs concerned (Program Associated Data, PAD) Broadcasting is being used unidirectionally by broadcast broadcasters. These digital audio or video programs are transmitted, for example, by means of radio waves emitted by terrestrial or satellite-based transmitters or via broadcast cable networks, and are received by corresponding broadcast receivers. Such broadcast systems are known, for example, under the name Digital Audio Broadcasting (DAB), respectively Digital Video Broadcasting (DVB). Within the DVB standard there are different versions, such as DVB-C (cable), DVB-S (satellite), DVB-T (terrestrial) or DVB-H (for so-called handheld devices).
  • DVB-C compact
  • DVB-S shortlite
  • DVB-T terrestrial
  • DVB-H for so-called handheld devices.
  • DAB and DVB broadcasting systems in particular radio or television programs, but also interactive multimedia content, for example games, can be distributed.
  • a particularly advantageous situation arises in particular from the combination of digital broadcasting with reception by means of portable and mobile devices.
  • users can receive audio or video programs anywhere without being bound to a fixed location.
  • broadcast systems have the disadvantage that the broadcast signals can be received poorly or not at all in certain areas, for example because of unfavorable topography of the area, high obstacles or shielding inside houses and buildings through the walls, walls, metallized Windows and other insulators.
  • one of the major advantages of broadcasting systems namely access to a very large audience, can only partially be exploited.
  • This disadvantage seems all the more important because many broadcast receivers are usually located in these low-power areas and thus can get no or only poor access to the popular programs and / or data, which in turn your expectations regarding quality of digital broadcasting can not be achieved.
  • a further disadvantage of these broadcast systems results from the unidirectional propagation characteristic of broadcast signals, so that, for example in the case of transmission by means of radio waves, a return channel is missing from the broadcast receivers to the broadcast transmitters or to their operators. Therefore, for example, no broadcast programs can be selected, which are then received via the broadcast medium.
  • separate, parallel channels must be provided for transporting the information from the mobile communication device to the broadcast provider, which complicates and increases the cost of commissioning and maintaining such systems.
  • programs and / or data are transmitted for the transmission of programs and / or data which are distributed unidirectionally by a broadcast transmitter in a first transmission area with a first transmission power and in a second transmission area with a second transmission power in the first transmission area are received by a receiving module of a transmission unit, that the programs and / or data are converted by means of a conversion module of the transmission unit, that connects the mobile communication device with a dial-up node of a local wireless network, and that the converted programs and / or data via a communication interface of the transmission unit are transmitted to the local wireless network in the second transmission area and are received there by the mobile communication device via an interface to the local wireless network.
  • the transmission power in the respective areas relates in particular to the signal strength and / or quality that can be received by a mobile communication device.
  • the advantage of this invention is, in particular, that programs and / or data distributed by the broadcast provider are also received in low-power areas.
  • the mobility of the user is not impaired, since a change of location from the first transmission area to the second transmission area, for example buildings, which are shielded by metallized windows, is made possible without further problems by this invention.
  • the programs and / or data which are distributed by the broadcast transmitter are received in the second transmission area either via an interface of the mobile communication device to the local wireless network or directly via the broadcast interface.
  • This has, inter alia, the advantage that, in parts of the second transmission area where the broadcast signal has sufficient transmission power, it is possible to switch between two different reception modes, depending on the better reception quality. If, for example, the desired program can only be received via the broadcast channel in mono quality but via the local wireless network in stereo quality, the mobile communication device can change the reception to the local wireless network.
  • Another advantage of this embodiment variant is the possibility of simultaneous reception of different programs and / or data via different channels.
  • a mobile radio device for a GSM and / or UMTS mobile radio network is used to receive broadcast programs and / or data, which is identified in the mobile network by means of an identification module.
  • This embodiment variant has, inter alia, the advantage that existing mobile devices become additional devices that can be used in different environments for different applications.
  • identification mechanisms of the mobile radio network can be used for identification and authentication purposes.
  • broadcast programs and / or data of the DAB type Digital Audio Broadcast
  • DVB Digital Video Broadcast
  • DVB-H Digital Video Broadcast for Handhelds
  • GPS GPS-based GPS
  • control and / or control data is transmitted from the mobile communication device at least partially via the local wireless network to a communication module of the broadcast provider.
  • a mobile radio network interface of the mobile communication device is used as a fallback interface to the communication module of the broadcast provider.
  • the programs and / or data to be distributed are selected by means of an input device on the mobile communication device.
  • This embodiment variant has, inter alia, the advantage that the user can determine directly on his mobile communication device according to his interests and needs, which programs and / or data he wants to receive and that this is not determined centrally for all users the same.
  • a transmission request for transmitting programs and / or data to the transmission unit is sent by the mobile communication device when entering the second transmission area, in which case the desired programs and / or data from the transmission unit to the mobile communication device via the local wireless network in the second Transmission area are transmitted.
  • FIG. 1 illustrates an architecture that may be used to implement the broadcast of broadcast programs and / or data in accordance with the invention.
  • FIG. 1 shows a block diagram which schematically illustrates a method according to the invention and a system for transmitting digital broadcast in transmission-poor areas.
  • the reference number 9 refers to a central unit of a broadcast provider which distributes programs and / or data unidirectionally, for example by means of radio waves from a terrestrial or satellite-based broadcast transmission antenna 4 via an air interface 2 or via broadcast cable networks.
  • the reference number 9 also refers to the provider of these programs and / or data, for example digital audio programs (radio programs) or video programs (television programs), and digital data, for example data for the Execution of data services or program-related data related to the programs concerned (Program Associated Data, PAD), or even data in general (Non Program Associated Data, NPAD), for example, interactive content such as games.
  • this also means multimedia data, for example in the MPEGx (in particular MP2 / MPEG7) standard, as defined by the Moving Picture Experts Group.
  • MPEGx in particular MP2 / MPEG7
  • MPEG7 MPEG7
  • the broadcast provider 9 broadcasts programs and / or data unidirectionally, for example by means of radio waves from a terrestrial or satellite-based broadcast transmission antenna 4 via an air interface 2, or via broadcast cable networks.
  • a mobile communication device 5 has the necessary infrastructure, including hardware and software components, to implement a described method and / or system according to the invention.
  • mobile communication devices 5 include all possible so-called.
  • Customer Premise Equipment (CPE) to understand, for example, include all IP-enabled devices, such as mobile phones, PDAs, laptops or game consoles, such as Playstation®, Xbox®, Gameboy® or GameCube®.
  • the mobile communication device 5 is equipped with a broadcast receiver 510, by means of which the programs and / or data distributed by broadcast providers 9 can be received via broadcast channels, for example via the broadcast cable network or by means of a broadcast reception antenna 56 as radio waves over the air interface 2.
  • broadcast channels for example via the broadcast cable network or by means of a broadcast reception antenna 56 as radio waves over the air interface 2.
  • Broadcasting systems Such broadcast broadcasters and broadcast receivers are known, for example, as Digital Audio Broadcasting (DAB) or Digital Video Broadcasting (DVB).
  • the European Telecommunications Standards Institute (ETSI), Sophia Antipolis, France, has been named the Digital Audio Broadcasting (DAB) system for the delivery of high quality digital audio programs and / or data services for reception by mobile, portable and fixed terminals terrestrial or satellite-based transmitters 4 or developed by broadcast cable networks, the standard ETS 300 401, "Radio broadcasting systems; The content of related document ETS 300 401, published in May 1997 by the ETSI in the second edition, as well as the content of the standard document ETS 300 174, "Network Aspects (NA); 34-45 Mbit / s digital coding of component television signals for the range of 34-45 Mbit / s ", published by the ETSI in November 1992, is hereby incorporated by reference in the text and in the ETSI standards referred to above Information Channel (FIC), by means of which a fast access to information is made possible for a broadcast receiver 103. For example, multiplex configuration information (MCI) but also service information and data for data services are transmitted via the FIC channel.
  • the mobile communication device 5 has at least one further physical network interface, which can also support several different network standards.
  • These physical network interfaces may, for example, be interfaces to local wireless networks, in particular WLAN (Wireless Local Area Network) 802.11, Bluetooth, and / or GSM (Global System for Mobile Communication), GPRS (Generalized Packet Radio Service), USSD (Unstructured Supplementary Services Data ), WCDMA (Wideband Code-Division Multiple Access), UMTS (Universal Mobile Telecommunications System), as well as Ethernet, Token Ring and / or another Wired LAN (Local Area Network).
  • WLAN Wireless Local Area Network
  • Bluetooth Wireless Fidelity
  • GSM Global System for Mobile Communication
  • GPRS Generalized Packet Radio Service
  • USSD Unstructured Supplementary Services Data
  • WCDMA Wideband Code-Division Multiple Access
  • UMTS Universal Mobile Telecommunications System
  • Ethernet Token Ring and / or another Wired LAN (Local Area Network).
  • Wired LAN Local Area Network
  • reference number 1 accordingly stands for the various local wireless networks (WLAN 802.11, Bluetooth, etc.), while the reference number 55 represents the physical network interface of the mobile communication device 5 to these local wireless networks 100.
  • reference number 110 stands for the various Mobile radio networks (GSM, GPRS, UMTS, etc.) and the reference number 54 for the corresponding physical network interface of the mobile communication device 5 to these mobile networks 110.
  • the mobile communication device 5 may meet the specifications of the standards for seamlessly switching voice and data media services, such as Unlicensed Mobile Access (UMA) for the seamless transition between WLAN, GSM / GPRS and Bluetooth, SCCAN (Seamless Converged Communication Across Networks ) or Bluephone.
  • UMA Unlicensed Mobile Access
  • SCCAN Seamless Converged Communication Across Networks
  • the mobile communication device is connected via a contact-type interface to an identification module 53 for identifying the mobile communication device 5 in the mobile radio network 110.
  • this identification module 53 can be a SIM card (Subscriber Identity Module), which can contain user-relevant data.
  • the mobile communication device 5 also has input elements 52, by means of which data and / or commands can be entered for use and / or execution on the mobile communication device 5 or for transmission via the communication interfaces 54/55.
  • the mobile communication device 5 has elements 51, which are used for output and / or reproduction of acoustic and / or optical signals and image and / or sound data to the user.
  • the elements 51 can be used to output and / or reproduce received broadcast programs and / or data.
  • the reference number 1 in FIG. 2 relates to a transmission unit whose receiving module 13 receives broadcast programs and / or data via a corresponding physical broadcast interface 12, from a broadcast transmission antenna 4 via an air interface 2 or via broadcast cable networks in a first transmission area to be spread.
  • the programs and / or data received in this way are sent by the receiving module 13 of the transmission unit 1 to a conversion module 14 of the transmission unit 1.
  • the conversion module 14 transforms the received programs and / or data, for example, by placing them in a different frequency position.
  • the programs and / or data may also be subjected to other conversions, in particular digitization, filtering, etc.
  • the data may also be so be converted to a different standard or communication protocol.
  • the programs and / or data thus converted are then transmitted via a communication interface 15 of the transmission unit 1 to the local wireless network 100 in the second transmission area.
  • the reception of digital broadcast programs and / or data can also be ensured in areas with low transmitting power.
  • the mobile communication device 5 enters a transmission area with a poorer transmission power of the broadcast signals transmitted by the broadcast transmission antenna 4, the mobile communication device 5 searches for available networks and, in the case of available networks, logs on to a dial-in node of the corresponding network.
  • the mobile communication device 5 can register in a local wireless network 100. Subsequently, the programs and / or data which are broadcast by the broadcast transmission antenna 4 and transmitted by the transmission unit 1 to the local wireless network 100 are received in this low-power area via the corresponding communication interface 55 from the mobile communication device 5.
  • input elements 52 of the mobile communication device 5 data and / or commands are input, which are transmitted via the return channels 8 and / or 3 to a central unit of the broadcast provider 9. These data and / or commands, in particular control and / or control data, are transmitted to the local wireless network 100 via the corresponding physical interface 55 and / or the interface 54.
  • the reference number 7 refers to a gateway which connects the local wireless network 100 to a central unit of the broadcast provider 9, so that the input data and / or commands can be transmitted from the mobile communication device 5 to the central unit of the broadcast provider 9.
  • the return channel 3 is a fallback interface, by means of which data and / or commands are transmitted from the mobile communication device 5 to the central unit of the broadcast provider 9 via the mobile radio network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
EP04105974A 2004-11-22 2004-11-22 Radiodiffusion numérique pour des régions avec une puissance de transmssion basse Withdrawn EP1659792A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04105974A EP1659792A1 (fr) 2004-11-22 2004-11-22 Radiodiffusion numérique pour des régions avec une puissance de transmssion basse
US11/283,860 US20060109808A1 (en) 2004-11-22 2005-11-22 Digital broadcasting in areas with poor transmitting power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04105974A EP1659792A1 (fr) 2004-11-22 2004-11-22 Radiodiffusion numérique pour des régions avec une puissance de transmssion basse

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DE102015220181A1 (de) * 2015-10-16 2017-04-20 Technisat Digital Gmbh Mobiles Gerät

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US8041292B2 (en) 2006-12-04 2011-10-18 Ibiquity Digital Corporation Network radio receiver
WO2011041744A1 (fr) * 2009-10-02 2011-04-07 Gabriele Sartori Système et procédé pour un multiplicateur de terminaux graphiques
EP3051314B1 (fr) * 2015-01-27 2023-05-31 Airbus Defence and Space GmbH Amélioration de la dissémination de données dans un système de navigation ou de communication

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EP1337055A2 (fr) * 2002-02-19 2003-08-20 Deutsche Telekom AG Procèdé et système pour fournir des informations et communiquer dans des véhicules
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Publication number Priority date Publication date Assignee Title
WO2001003075A1 (fr) * 1999-07-06 2001-01-11 Swisscom Mobile Ag Systeme d'information pour moyens de transport publics, et procede de communication correspondant
WO2001017255A1 (fr) * 1999-08-27 2001-03-08 Nokia Corporation Terminal multimedia mobile pour dvb-t et communication par cellules de petite et grande tailles
EP1195931A2 (fr) * 2000-09-28 2002-04-10 Nokia Corporation Méthode et dispositif pour la réception de données à large bande en provenance d'un réseau de diffusion numérique et pour la retransmission locale de ces données
US6407673B1 (en) * 2001-09-04 2002-06-18 The Rail Network, Inc. Transit vehicle multimedia broadcast system
EP1337055A2 (fr) * 2002-02-19 2003-08-20 Deutsche Telekom AG Procèdé et système pour fournir des informations et communiquer dans des véhicules
US20040048567A1 (en) * 2002-07-16 2004-03-11 Yoichi Ohgami Relay device, relay method, relay program product and computer-readable recording medium having relay program recorded theron

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015220181A1 (de) * 2015-10-16 2017-04-20 Technisat Digital Gmbh Mobiles Gerät

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