+

WO2007058067A1 - Terminal de communication mobile, dispositif de complémentation d’émission numérique et système de complémentation d’émission numérique - Google Patents

Terminal de communication mobile, dispositif de complémentation d’émission numérique et système de complémentation d’émission numérique Download PDF

Info

Publication number
WO2007058067A1
WO2007058067A1 PCT/JP2006/321709 JP2006321709W WO2007058067A1 WO 2007058067 A1 WO2007058067 A1 WO 2007058067A1 JP 2006321709 W JP2006321709 W JP 2006321709W WO 2007058067 A1 WO2007058067 A1 WO 2007058067A1
Authority
WO
WIPO (PCT)
Prior art keywords
digital broadcast
data
wireless communication
packet
digital
Prior art date
Application number
PCT/JP2006/321709
Other languages
English (en)
Japanese (ja)
Inventor
Akira Kato
Original Assignee
Murata Manufacturing Co., Ltd.
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 Murata Manufacturing Co., Ltd. filed Critical Murata Manufacturing Co., Ltd.
Publication of WO2007058067A1 publication Critical patent/WO2007058067A1/fr

Links

Classifications

    • 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
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/11—Arrangements for counter-measures when a portion of broadcast information is unavailable
    • H04H60/12—Arrangements for counter-measures when a portion of broadcast information is unavailable wherein another information is substituted for the portion of broadcast information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
    • H04H20/24—Arrangements for distribution of identical information via broadcast system and non-broadcast system
    • 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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
    • H04N21/6137—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a telephone network, e.g. POTS
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6375—Control signals issued by the client directed to the server or network components for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
    • 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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/30—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data
    • H04H2201/37—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data via a different channel

Definitions

  • the present invention relates to a portable communication terminal that performs wireless communication via a base station and receives and views a digital broadcast of broadcasting station power. Furthermore, the present invention relates to an apparatus and system on the base station side that provides a service for a mobile communication terminal that receives the digital broadcast.
  • mobile communication terminals such as mobile phone terminals have been devised that can receive digital broadcasts such as television (TV) broadcasts and radio broadcasts that can be received not only by transmitting and receiving wireless communication data. Speak.
  • digital broadcasts such as television (TV) broadcasts and radio broadcasts that can be received not only by transmitting and receiving wireless communication data. Speak.
  • Patent Document 1 electronic TV program information is obtained from a TV mobile phone terminal, displayed on the screen of a TV mobile phone terminal, and recorded on a video device installed at home. A configuration in which a command is transmitted via a mobile phone network in accordance with a user operation of a mobile phone terminal with TV is described.
  • Patent Document 2 for a digital TV broadcast content viewed by a user using a mobile phone terminal with TV, the content portion that the user missed is specified, and the content is Following the user operation of the service content that has been digest edited and edited at high speed, the mobile phone terminal with TV acquires it via the mobile phone network, and the user views the service content using the mobile phone terminal with TV.
  • Patent Document 1 JP 2002-353915 A
  • Patent Document 2 JP 2004-349932 A
  • a mobile communication terminal such as a mobile phone terminal with a TV is not capable of completely avoiding a bad reception state under the influence of digital broadcasting. Moving to, the noise, interference, and attenuation of the transmitted wave became stronger, and the reception status of digital broadcasting sometimes worsened.
  • an object of the present invention is to provide a mobile communication terminal in which digital broadcast viewing / playback can be performed continuously without interruption and the communication cost of wireless communication is suppressed.
  • an apparatus and system for complementing the digital broadcast are provided.
  • the present invention relates to a mobile communication terminal including a digital broadcast receiving unit that receives digital broadcast data broadcast from a broadcast station, and a wireless communication unit that transmits and receives wireless communication data to and from a base station.
  • the digital broadcast receiving unit cannot correctly decode the digital broadcast data, and the wireless communication unit requests the wireless communication data as the wireless communication data, and acquires the data sequence acquisition means.
  • a mobile communication terminal having a complementing means for complementing digital broadcast data with a data string and a viewing / reproducing means for viewing / reproducing the supplemented digital broadcast data.
  • content data is encoded in a packet format determined by the MPEG (Moving Picture Experts Group) standard, and each packet has an individual identification code (packet ID). ) And FEC (Forward Error Correction) are added to the packet header.
  • MPEG Motion Picture Experts Group
  • FEC Forward Error Correction
  • Bit errors are corrected using (FEC), and packets (error packets) that cannot be decoded yet are acquired as wireless communication data via the wireless communication network in the present invention. Then, the error packet is replaced with a packet acquired as wireless communication data, and error correction is performed. As a result, the mobile communication terminal does not interrupt the viewing and playback due to the error packet, and the digital broadcast content data can be played back continuously. In addition, since the digital broadcast processing unit acquires only the packet corresponding to the error packet as wireless communication data, the communication cost, particularly the reception cost can be suppressed.
  • the digital broadcast receiving unit includes a buffer for storing digital broadcast data before viewing and reproduction, and the complementing means stores the digital broadcast data stored in the buffer.
  • the viewing / playback means plays back / plays the digital broadcast data output from the buffer.
  • digital broadcast data is stored in a noferer and complemented while existing in the data string S buffer with bit errors, so that the reception status of the digital broadcast is poor for the viewer.
  • viewing and playback of digital broadcasts can be completely eliminated in real time, but by setting the amount of time to be stored in the buffer to the minimum necessary level, the user can feel almost no stress and feel in real time. You can watch and play digital broadcasts.
  • the data string acquisition means detects an identifier for identifying a data string of digital broadcast data, and the wireless communication uses the identifier as wireless communication data. And means for receiving the data sequence of the digital broadcast data as wireless communication data by the wireless communication unit.
  • the packet ID added to the packet header is used as the identifier. That is, the transmission cost can be suppressed by detecting the packet ID of the error packet and transmitting only the packet ID as wireless communication data.
  • the present invention is a digital broadcast complementing device configured to be communicably connected to a base station configured to be able to transmit and receive wireless communication data to and from a mobile communication terminal.
  • a digital broadcast data storage that stores data; an identifier detection unit that detects an identifier from wireless communication data transmitted from a mobile communication terminal; and a data string of digital broadcast data corresponding to the identifier from the digital broadcast storage
  • a digital broadcast complementing device comprising a data string detection unit and a data string transmission unit for transmitting the detected data string to the mobile communication terminal.
  • the digital broadcast complementing apparatus transmits a data string for viewing and reproducing the digital broadcast upon receiving the identifier.
  • the communication cost can be suppressed to the maximum.
  • the present invention provides a mobile communication terminal configured to be able to transmit and receive wireless communication data to and from a base station, and a digital broadcast complementing device configured to be communicably connected to the base station.
  • a mobile communication terminal configured to be able to transmit and receive wireless communication data to and from a base station
  • a digital broadcast complementing device configured to be communicably connected to the base station.
  • Each can receive digital broadcast data broadcast from broadcast stations Comprising a digital broadcast supplement system, wherein the mobile communication terminal decrypts digital broadcast data, and stores the decrypted digital broadcast data in a buffer for a predetermined time before viewing and reproducing the digital broadcast data Means for detecting an identifier for identifying a data string that has not been correctly decoded from the decoded digital data; and transmitting the identifier as wireless communication data to the digital broadcast complementing apparatus.
  • FIG. 1 is a block diagram showing a digital broadcast supplement system according to a first embodiment.
  • FIG. 2 is a block diagram showing a digital broadcast supplement apparatus according to the first embodiment.
  • FIG. 3 is a block diagram showing the mobile phone terminal with TV according to the first embodiment.
  • FIG. 4 is a diagram illustrating an operation of the shift register according to the first embodiment.
  • FIG. 5 is a diagram illustrating an operation of a shift register according to another embodiment.
  • FIG. 1 shows an overview of wireless communication and digital broadcasting according to the present embodiment.
  • description will be made based on an example of a mobile telephone terminal with TV that receives a digital TV broadcast in which TV content data is encoded in a TS (Transport Stream) packet format determined by the MPEG2 standard.
  • TS Transport Stream
  • the mobile station MS performs wireless communication with a base station (Base Transceiver Station) BTS in a cellular manner.
  • a base station BTS is installed for each cell that divides a wide service area into smaller areas.
  • a plurality of base stations BTS are connected to a base station controller BSC (Base Station Controller). As the mobile phone terminal MS moves, wireless communication is performed while a plurality of different base stations BTS cooperate (handover).
  • This base station control device BSC is connected to a carrier line network to which it belongs, a fixed telephone line network, a carrier line network of another carrier, an IP line network used for the Internet, etc. Connect to the public network 1 such as
  • Broadcasting station 2 encodes digital TV content data that can be played back on mobile phone terminal MS in the TS packet format determined by the MPEG2 standard, and broadcasts it on broadcast radio waves.
  • the mobile phone terminal MS is a mobile phone terminal with TV, and receives digital TV broadcast radio waves from the broadcast station 2 in addition to the above-described cellular radio communication.
  • the TS packet is decoded from the received radio wave.
  • the error packet is reacquired by wireless communication. Play content data with high quality.
  • a digital broadcast complementing device 3 is connected to the base station BTS.
  • the digital broadcast supplementing device 3 receives the digital TV broadcast radio wave from the broadcast station 2, decodes the TS packet, and Remember. Further, the digital broadcast complementing apparatus 3 transmits a predetermined TS packet to the mobile phone terminal MS in accordance with a request signal from the mobile phone terminal MS. In addition, the mobile terminal ID of the mobile phone terminal MS and the number of TS packets transmitted to the mobile phone terminal MS are accumulated and stored.
  • the digital TV broadcast can be continuously viewed and reproduced on the mobile phone terminal MS without interruption, and the communication cost of the wireless communication data is suppressed and the amount of information is reduced. In addition, it is possible to obtain an appropriate billing amount for the communication cost.
  • the digital broadcast complementing device 3 receives a powerful processing unit 10 such as a CPU and ROM (not shown) that controls the overall operation of the device 3, a storage 12 that stores application programs, and broadcast radio waves.
  • a digital broadcast decoding unit 17 for decoding TS packets. A predetermined number of TS packets decoded by the digital broadcast decoding unit 17 are stored in the storage 12 as necessary.
  • the digital broadcast complementing device 3 includes a RAMI 1 for loading each program stored in the storage 12! /. This RAMI 1 is a volatile memory that temporarily stores data. It is also connected to other devices in the base station BTS via the communication control interface (IF) 16.
  • an input / output control interface (IF) 13 is connected to an input device 14 such as a mouse and a keyboard, an output device 15 such as a printer and a monitor, and a storage media recording / reproducing device (not shown).
  • the processing unit 10 has various application programs stored in the storage 12. Load the gram on RAMI 1 and execute the process.
  • the digital broadcast data decoded by the digital broadcast decoding unit 17 is stored in the storage 12 for each TS packet, and the request signal strength received via the communication control IF 16 also obtains the packet ID.
  • the request signal strength received via the communication control IF 16 also obtains the packet ID.
  • search the TS packet associate the searched TS packet with the mobile terminal ID of the mobile phone terminal MS that sent the request signal, and send a response signal Is generated and transmitted to the base station BTS via the communication control IF16, and the number of TS packets transmitted to the mobile phone terminal MS and the mobile terminal ID are stored in the storage.
  • the mobile phone terminal with TV MS includes a digital TV broadcast receiving unit 100 and a wireless communication unit 200.
  • the digital TV broadcast receiver 100 includes a TV antenna 101, a digital TV receiver 102, a digital TV demodulator 103, a shift register 104, an MPEG decoder 105, and a TS packet request unit 106.
  • the wireless communication unit 200 includes a telephone antenna 201, a duplexer 202, a transmission circuit 203, a sound modulation circuit 204, a microphone 205, a reception circuit 206, a processor 207, a sound demodulation circuit 208, and a speaker 209.
  • the processor 207 is illustrated so as to include the processor 207 in the wireless communication unit 200.
  • the processor 207 is a processor such as an MPU that performs control processing of the entire mobile phone terminal MS including the digital TV broadcast receiving unit 100.
  • the processor 207 may perform processing related to digital TV broadcasting as well as processing related to wireless communication.
  • the processor 207 is based on the telephone number information of the other party.
  • Call start request information is generated, converted into digital data, and modulated by a transmission circuit 203 into a modulated signal for wireless communication.
  • the modulation signal for wireless communication carrying the call start request information is transmitted from the telephone antenna 201 via the duplexer 202.
  • the receiving circuit 206 demodulates the modulation signal of the wireless communication carrying the transmission signal, and the processor 207 transmits the signal.
  • the transmission circuit 203 modulates digital data based on the response signal into a modulated signal for wireless communication, and transmits the modulated data from the telephone antenna 201 via the duplexer 202.
  • the microphone 205 receives the user's utterance, digitally converts it by the audio modulation circuit 204, and outputs it to the transmission circuit.
  • the transmission circuit modulates the digitally converted audio signal into a radio communication modulation signal and outputs the modulated signal from the telephone antenna 201 via the duplexer 202.
  • a radio communication modulation signal carrying a voice signal from the other party is received by the telephone antenna 201, it is input to the reception circuit 206 via the duplexer 202, and the reception circuit 206 demodulates the response signal.
  • the demodulated response signal is reproduced by the audio demodulation circuit 208 and output to the speaker 209.
  • the TV TV receiving unit 102 When watching a TV program, when the TV antenna 101 receives a broadcast wave of a digital TV broadcast, the TV TV receiving unit 102 outputs a baseband signal obtained by converting the broadcast wave.
  • the digital TV receiver 102 is configured with a direct conversion RF circuit, and the baseband signal is divided into two channels: an I signal (In—phase signal) and a Q signal (Q uadrature—phase signal). Output separately.
  • the baseband signal is output from the digital TV receiving unit 102 to the digital TV demodulating unit 103.
  • the digital TV demodulator 103 demodulates and decodes the error correction code (FEC) to convert the baseband signal into an MPEG format TS packet.
  • FEC error correction code
  • the converted TS packet is output from digital TV demodulation section 103 to shift register 104.
  • the shift register 104 is a device having a large number of flip-flops that delays digital data by a predetermined number of bits, and stores TS packets bit by bit in order for a predetermined time.
  • the shift register 104 serves as a buffer for storing digital broadcast data. The detailed operation will be described later.
  • error packet TS packet stored in the shift register 104 is output to the MPEG decoder 105 as it is.
  • the MPEG decoder 105 decodes the content data from the TS packet, reproduces the video signal and the audio signal, and outputs them to a liquid crystal display unit (not shown).
  • the liquid crystal display unit displays video on the display screen and outputs audio from a speaker (not shown).
  • the TS packet request unit 106 detects the occurrence of the error packet and acquires the packet ID of the error packet. If the packet ID of the error packet itself cannot be decrypted, the packet ID of the error packet is identified from the packet IDs of the preceding and succeeding TS packets and output to the TS packet request unit 106.
  • TS packet request section 106 converts the packet ID into a TS packet request signal together with its own terminal identification code (mobile terminal ID), and outputs it to transmission circuit 203 of radio communication section 200. Note that the function of the TS packet request unit 106 may be realized by the processor 207.
  • a TS packet request signal is modulated by transmission circuit 203 and output from telephone antenna 201 via duplexer 202.
  • the request signal output from the telephone antenna 201 is input to the digital broadcast supplement apparatus 3 via the base station BTS.
  • the digital broadcast complementing device 3 shown in FIG. 2 searches the storage 12 for a TS packet corresponding to the packet ID detected from the request signal.
  • the retrieved TS packet is transmitted to the mobile phone terminal MS according to the mobile terminal ID included in the request signal.
  • the mobile station ID is detected by the base station BTS.
  • the digital broadcast complementing device 3 can be configured not to input a mobile terminal ID. In this case, the base station BTS stores the mobile terminal ID and the packet communication amount in order to calculate the billing amount. Good.
  • the mobile phone terminal MS shown in FIG. 3 receives a modulation signal for radio communication carrying a TS packet transmitted from the digital broadcast complementing device 3 via the base station BTS.
  • the receiving circuit 206 also demodulates the TS packet with the received modulation signal power of wireless communication.
  • the processor 207 identifies the TS packet, and outputs the identified TS packet to the digital TV broadcast receiving unit 100 instead of the audio decoding circuit 208 as a TS packet signal TSP by 1 bit.
  • the TS packet signal TSP input from the processor 207 is replaced with an error packet stored in the shift register 104. This allows TS buckets without bit errors. Only the data is output from the shift register 104 to the MPEG decoder 105.
  • the MPEG decoder 105 decodes the video digital data from the TS packet without any bit error, reproduces the video signal and the audio signal, and outputs them to a liquid crystal display (not shown).
  • the liquid crystal display unit displays the input video signal on the display screen and outputs sound from a speaker (not shown).
  • the shift register 104 is displayed with a smaller number of stored bits.
  • the TS packet (TS) sequence length can be explained as 6 bits.
  • TS packets of ISDB-T standard and DVB-T standard have a sequence length of 188 bytes or 204 bytes. Therefore, if the number of bits of the shift register 104 is set to be several times the sequence length of the packet, that is, several hundred to several tens of thousands of bits, the shift register 104 is configured to always store several packets to several hundred packets. Is preferred.
  • the shift register 104 is a device that stores digital data by a predetermined number of bits, and stores the TS packet signal TSP serially input bit by bit from the digital TV demodulator 103, bit by bit in the cycle of the Clock signal. , Which is sent from the end.
  • the clock signal CL synchronizes the digital TV demodulator 103 and the processor 207.
  • the clock signal is input from the digital TV demodulator 103 to the shift register 104, but it may be configured so that other circuit power is input!
  • Shift register 104 delays TS packet signal TSP by a predetermined time determined by the number of bits stored therein and the frequency of Clock signal, and outputs TS packet signal TSP bit by bit.
  • the TS packet signal TSP is delayed by the time of MZf [s]. .
  • This delay time (MZf [s]) may be set based on the time required to obtain the TS packet using the above-described wireless communication.
  • the processor 207 obtained the error packet stored in the shift register 104.
  • set Load Enable terminal LE to Enable and rewrite the TS packet signal TSP corresponding to the rewrite terminal corresponding to the bit at the position of the error packet among the multiple rewrite terminals connected to the parallel.
  • the location and timing of the terminal to which this rewrite signal is applied should be configured to be grasped using the processor 207, other integrated circuits, counters, etc.
  • TS packets are stored in the shift register 104, and in order to complement the TS packets while being stored in the shift register 104, the reception status of the digital broadcast is given to the viewer. There is no need to be aware of what is wrong, and digital broadcasts can be played back continuously without requiring any manipulation of viewer power.
  • the delay time of the TS packet by the shift register 104 is preferably set to a time necessary for obtaining the TS packet as wireless communication data. Total time of the time required for wireless communication with the telephone terminal MS, the time required for communication between the base station BTS and the digital broadcast supplement device 3, and the internal processing time of the digital broadcast supplement device 3. Approx.
  • the digital broadcast complementing apparatus 3 deletes the TS packets stored for a predetermined time and stores them in the shift register of the mobile phone terminal MS to several hundreds. If only the packet is stored in the storage, the time required to search for the TS packet can be reduced. In this case, the internal processing time of the digital broadcast supplement device 3 can be almost ignored. The process of deleting this TS packet can be realized as an application program by the processing unit.
  • the time required for wireless communication between the base station BTS and the mobile phone terminal MS can be calculated by assuming that the maximum round-trip distance in the cell between the base station and the mobile phone terminal is X [m]. The maximum is XZC [s]. Where C is the speed of light (C [mZs]).
  • the time required for communication between the base station BTS and the digital broadcast supplementary device 3, and the digital is reduced, the TS packet delay time by shift register 104 is reduced by the time required for wireless communication between base station BTS and mobile phone terminal MS. Therefore, the delay time (MZf [s]) of the shift register 104 with the period of the aforementioned Clock signal as f [Hz] and the bit length of the shift register as M [bit] It is preferable to set the maximum time (XZC [s]) required for wireless communication with the mobile phone terminal MS.
  • storage in the digital broadcast complementing apparatus 3 is performed by receiving broadcast waves.
  • the present invention is not limited to this embodiment, and can be implemented even when the broadcasting station 2 and the digital transmission complementing device 3 perform wired communication using an optical cable or the like. If the broadcaster and the wireless carrier are the same, use the storage media to keep the digital TV content data consistent between the broadcaster 2 and the digital broadcast supplement device 3. It is also possible. In this case, communication between the broadcast station 2 and the digital broadcast supplement device 3 is not necessarily required.
  • the digital broadcast complementing apparatus 3 is connected to the base station BTS, but the digital broadcast supplementing apparatus 3 does not necessarily need to be connected to the base station BTS. It may be connected to the device BSC. This eliminates the need to connect the digital broadcast supplementary device 3 to all the cellular base stations BTS, thereby reducing the total number of digital broadcast supplementary devices 3 to be installed.
  • the delay time by the shift register 104 of the mobile phone terminal MS may be the maximum time including the communication time between the base station controller BSC and the base station BTS.
  • the digital broadcast supplementary device 3 may be connected to the base station control device BSC via the public network 1. Furthermore, it is preferable to connect the digital broadcast complementing device 3 via the IP line network, so that a general IP multicast server device can be used as the digital broadcast supplementing device 3.
  • the time required for the base station BTS to communicate with the base station controller BSC via the public network 1 is added to the delay time before the TS packet of the mobile phone terminal MS is reproduced.
  • it is preferable to use a large-capacity storage such as a magnetic storage device instead of the shift register 104. Even if a magnetic storage device is used, the TS packet bit string is forwarded.
  • bit rewriting can be realized by processing using the processor 207 or a logic circuit or MPU provided separately.
  • Figure 5 shows a mobile phone terminal
  • FIG. 5 is a diagram for explaining the operation of an MS shift register 304
  • the shift register 304 is displayed with a smaller number of stored bits in order to simplify the explanation as in FIG. 5.
  • the sequence length of the TS packet (TS) is assumed to be 6 bits.
  • the cycle of the Clock signal CL from the digital TV demodulator 303 is output to the processor 307 together with the shift register 304.
  • the Clock signal CL is synchronized with the processor 307 and the digital TV demodulator 303, and the power input from the digital TV demodulator 303 to the shift register 304 is also input. You may comprise.
  • the TS packet signal TSP is obtained by wireless communication by the processor 307, and the processor 307 shifts the obtained TS packet signal TSP. Replace with the error packet stored in register 304. Specifically, the processor 307 temporarily stores the obtained TS packet signal TSP in a latch or memory, and also connects the TS packet signal TSP to the rewrite terminal connected to correspond to the terminal bit of the shift register 304. Rewrite with packet signal TSP and enable Load Enable terminal LE. This rewrite timing is the timing of each bit where each bit of the error packet is located at this end bit.
  • the processor 307 may be performed by a logic circuit or MPU. It can be implemented regardless of the configuration.
  • TS packets are stored in the shift register 304, and in order to complement the TS packets while being stored in the shift register 304, the viewer is in a state of receiving digital broadcasting. There is no need to be aware of what is wrong, and digital broadcasts can be played back continuously without requiring any manipulation of viewer power.
  • the present invention is not limited to the MPEG2 standard digital TV broadcast shown in each of the above embodiments, but other MPEG4 standards related to contents, ISDB standards related to digital broadcasts, DVB standards, other contents (such as radio), etc.
  • the present invention can be implemented even with various digital broadcasts, and any digital broadcast that receives packet digital broadcasts is suitable.
  • any terminal that performs wireless communication via a base station which is not limited to the mobile phone terminal shown in each of the above embodiments, is suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un terminal téléphonique mobile (MS) communiquant par radio avec une station de base (BTS) et un dispositif de complémentation d’émission numérique (3) connecté à la station de base (BTS) qui acquièrent respectivement la possibilité de recevoir des émissions. Le terminal téléphonique mobile (MS) décode un paquet TS d’une émission numérique, détecte un ID de paquet d’un paquet TS qui ne peut pas être décodé et le transmet par radio en tant que données de communication radio par un réseau de lignes téléphoniques mobiles à un dispositif de complémentation d’émission numérique (3). Le dispositif de complémentation d’émission numérique (3) détecte un paquet TS correspondant au paquet TS reçu d’un stockage de données d’émissions numériques et le transmet en tant que données de communication radio par le réseau de lignes téléphoniques mobiles au terminal téléphonique mobile (MS). Le terminal téléphonique mobile (MS) complémente l’émission numérique en utilisant le paquet TS reçu de façon à le reproduire pour le visualiser.
PCT/JP2006/321709 2005-11-16 2006-10-31 Terminal de communication mobile, dispositif de complémentation d’émission numérique et système de complémentation d’émission numérique WO2007058067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005332095A JP2007142677A (ja) 2005-11-16 2005-11-16 携帯通信端末、デジタル放送補完装置、およびデジタル放送補完システム
JP2005-332095 2005-11-16

Publications (1)

Publication Number Publication Date
WO2007058067A1 true WO2007058067A1 (fr) 2007-05-24

Family

ID=38048457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/321709 WO2007058067A1 (fr) 2005-11-16 2006-10-31 Terminal de communication mobile, dispositif de complémentation d’émission numérique et système de complémentation d’émission numérique

Country Status (2)

Country Link
JP (1) JP2007142677A (fr)
WO (1) WO2007058067A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2091163A1 (fr) * 2008-02-12 2009-08-19 Nokia Siemens Networks Oy Procédé de transmission de données vers des équipements d'utilisateur, système de communication, station de base et équipement d'utilisateur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160129846A (ko) * 2014-03-05 2016-11-09 톰슨 라이센싱 신호를 수신하기 위한 장치 및 방법
JP7587434B2 (ja) 2020-06-03 2024-11-20 日本放送協会 送信サーバ、送信装置、受信装置及びプログラム
JP7587450B2 (ja) 2021-03-22 2024-11-20 日本放送協会 送信サーバ、送信装置及びプログラム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002237813A (ja) * 2001-02-09 2002-08-23 Mobile Contents Fund:Kk 情報配信システム及びデータ通信端末
JP2004200863A (ja) * 2002-12-17 2004-07-15 Nec Corp デジタル放送受信システムおよびデジタル放送受信方法
JP2004290357A (ja) * 2003-03-26 2004-10-21 Sophia Co Ltd 遊技機
JP2005033619A (ja) * 2003-07-08 2005-02-03 Matsushita Electric Ind Co Ltd コンテンツ管理装置およびコンテンツ管理方法
JP2005065180A (ja) * 2003-08-20 2005-03-10 Nec Corp 移動体通信システムにおける課金方式及び課金方法並びにプログラムを記録した記録媒体
JP2005210178A (ja) * 2004-01-20 2005-08-04 Denso Corp 通信装置、および課金額算出装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002237813A (ja) * 2001-02-09 2002-08-23 Mobile Contents Fund:Kk 情報配信システム及びデータ通信端末
JP2004200863A (ja) * 2002-12-17 2004-07-15 Nec Corp デジタル放送受信システムおよびデジタル放送受信方法
JP2004290357A (ja) * 2003-03-26 2004-10-21 Sophia Co Ltd 遊技機
JP2005033619A (ja) * 2003-07-08 2005-02-03 Matsushita Electric Ind Co Ltd コンテンツ管理装置およびコンテンツ管理方法
JP2005065180A (ja) * 2003-08-20 2005-03-10 Nec Corp 移動体通信システムにおける課金方式及び課金方法並びにプログラムを記録した記録媒体
JP2005210178A (ja) * 2004-01-20 2005-08-04 Denso Corp 通信装置、および課金額算出装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2091163A1 (fr) * 2008-02-12 2009-08-19 Nokia Siemens Networks Oy Procédé de transmission de données vers des équipements d'utilisateur, système de communication, station de base et équipement d'utilisateur
WO2009101088A2 (fr) * 2008-02-12 2009-08-20 Nokia Siemens Networks Oy Procédé de transmission de données à des équipements utilisateur, système de communication, station de base et équipement utilisateur
WO2009101088A3 (fr) * 2008-02-12 2009-11-05 Nokia Siemens Networks Oy Procédé de transmission de données à des équipements utilisateur, système de communication, station de base et équipement utilisateur
US8856605B2 (en) 2008-02-12 2014-10-07 Nokia Siemens Networks Oy Method for transmitting data to user equipments, communication system, base station and user equipment

Also Published As

Publication number Publication date
JP2007142677A (ja) 2007-06-07

Similar Documents

Publication Publication Date Title
US8677432B2 (en) System and method for providing a personal broadcasting service using a mobile communication terminal
JP5051444B2 (ja) コンテンツ利用システム、コンテンツ利用方法、記録再生装置、コンテンツ提供方法およびコンテンツ提供プログラム
CN101014133B (zh) 提供数字多媒体广播辅助功能的装置和方法
US7778276B2 (en) Mobile communication terminal, mobile communication method, and information recording medium
US9219951B2 (en) Mobile TV system architecture for mobile terminals
US20090013363A1 (en) Broadcast system and broadcast reception method and apparatus thereof
JPWO2002056486A1 (ja) 受信機、携帯端末、および受信システム
US11122331B2 (en) Receiving device, transmitting device, and data processing method
US20070082602A1 (en) Broadcasting system and method for providing broadcasting service in a weak electric field area
WO2008046324A1 (fr) Dispositif de réception mobile, procédé et dispositif de sélection de flux multimédia
KR20050076693A (ko) 송수신 시스템, 송신 장치 및 송신 방법, 수신 장치 및수신 방법, 기록 매체 및 프로그램
CN101658029A (zh) 用于从手持设备向计算机系统传送多媒体信号以进行显示的方法和装置
US8035743B2 (en) Method for processing data in a terminal with digital broadcasting receiver
WO2007058067A1 (fr) Terminal de communication mobile, dispositif de complémentation d’émission numérique et système de complémentation d’émission numérique
US8813161B2 (en) Method for transmitting and receiving service data of handset TV
JP2005020437A (ja) コンテンツ補正システムおよび受信機器
US20080192658A1 (en) Media distribution system with wireless local area network module
KR100732889B1 (ko) 디지털 방송 수신장치
JP4496276B1 (ja) 情報受信装置、情報受信方法、情報受信プログラム、情報配信装置並びに情報配信システム
KR101229896B1 (ko) 다중 주파수 채널을 사용하는 디지털 방송수신기의서비스채널 변경 장치 및 방법
KR101304888B1 (ko) 다중 주파수 채널을 사용하는 디지털 방송수신기의서비스채널 변경 장치 및 방법
KR100739740B1 (ko) 방송 녹화 장치 및 방법
JP2009284248A (ja) 情報端末装置、ストリーム受信処理方法
JP2010028152A (ja) 端末装置
JP2008283300A (ja) 受信装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06822638

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载