KR20130090103A - Digital cable broadcast settop box for mobile terminal, the system and transport method thereof - Google Patents

Digital cable broadcast settop box for mobile terminal, the system and transport method thereof Download PDF

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Publication number
KR20130090103A
KR20130090103A KR1020120011178A KR20120011178A KR20130090103A KR 20130090103 A KR20130090103 A KR 20130090103A KR 1020120011178 A KR1020120011178 A KR 1020120011178A KR 20120011178 A KR20120011178 A KR 20120011178A KR 20130090103 A KR20130090103 A KR 20130090103A
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KR
South Korea
Prior art keywords
mobile terminal
top box
digital cable
streaming
cable broadcasting
Prior art date
Application number
KR1020120011178A
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Korean (ko)
Inventor
김충수
진용민
정경균
이명호
Original Assignee
사단법인한국디지털케이블연구원
주식회사 씨앤앰
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Application filed by 사단법인한국디지털케이블연구원, 주식회사 씨앤앰 filed Critical 사단법인한국디지털케이블연구원
Priority to KR1020120011178A priority Critical patent/KR20130090103A/en
Publication of KR20130090103A publication Critical patent/KR20130090103A/en

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    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • H04N21/2221—Secondary servers, e.g. proxy server, cable television Head-end being a cable television head-end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44227—Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local 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]
    • H04N21/60—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
    • H04N21/64—Addressing
    • H04N21/6408—Unicasting
    • 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
    • H04N21/643—Communication protocols
    • H04N21/64322—IP

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

Abstract

The present invention relates to a digital cable broadcasting set-top box for mobile terminals, a system and a transmission method thereof. More particularly, the present invention relates to a digital cable broadcasting multicast stream transmitted from a head-end system. By providing digital cable broadcasting service for mobile terminal smoothly while preventing overload and session load of streaming traffic of cable broadcasting service, it is easy to configure real time streaming service for watching digital cable broadcasting of mobile terminal without additional server of headend system. The set-top box communicates with a streaming player installed in a mobile terminal such as a tablet PC or a smartphone through a wireless communication device connected to the set-top box so that the set-top box uses a short range wireless communication to authenticate, manage, and channel information of the mobile terminal. Mitigate spatial jeyakseong viewing of the viewer so as to provide, and it is the connection management, and service provider or a mobile terminal easy to effect.

Description

Digital cable broadcasting set top box for mobile terminal, system and transmission method thereof {DIGITAL CABLE BROADCAST SETTOP BOX FOR MOBILE TERMINAL, THE SYSTEM AND TRANSPORT METHOD THEREOF}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital cable broadcasting set-top box for mobile terminals, a system, and a method for transmitting the same. In particular, a multicast stream of digital cable broadcasting transmitted from a head-end system is converted from a set-top box into a unicast stream and wirelessly connected to the set-top box. The present invention relates to a digital cable broadcasting set-top box for a mobile terminal, a system for transmitting the same to a mobile terminal to be connected, and a transmission method thereof.

Digital broadcasting includes digital terrestrial broadcasting, digital satellite broadcasting and digital cable broadcasting, depending on the transmission medium.

Digital broadcasting data used in digital cable broadcasting among these digital broadcastings can efficiently and efficiently compress the amount of information of programs for each channel based on the MPEG (Moving Picture Experts Group) coding standard and the like. It supports unidirectional downstream by multiplexing programs corresponding to channel efficiently.

In addition, MPEG (Moving Picture Experts Group) -2 has been adopted as a standard for video and audio compression technology worldwide in order to efficiently and multiplex and transmit programs corresponding to broadcast channels.

In addition, the modulation method is a QAM method, which is one of digital methods, and is suitable for transmitting high efficiency data in a limited transmission band by changing amplitude and phase according to a digital data signal to be transmitted.

Thus, open cable digital broadcasting can broadcast dozens or hundreds of channels without the use of as many repeaters as in analog broadcasting. In other words, 6MHz to 30MHz per broadcasting channel is used in the frequency band up to 750MHz, and it is serviced by unidirectional downstream.

1 is a block diagram of a general digital cable broadcasting system, in which the digital cable broadcasting transmitted from the headend system 10 is converted into a packet for data through a cable modem termination system (CMTS) 20 (30: DOCSIS, Data Over Cable Service Interface Specifications) is transmitted to the set-top box 40 through a tunnel.

The Docsys 30 is a standard interface of a cable modem, which is a device that allows data to be exchanged between the cable broadcasting headend system 10 and the subscriber set-top box 40. The subscriber-side device (eg, set-top box) It conforms to a standard called Open Cable, and the transmission standard for supporting digital TV on open cable is the DOCSIS Settop-box Gateway (DSG).

On the other hand, if you want to use streaming service to use digital cable broadcasting in smart terminal such as iPad or Galaxy Tab, build HTTP streaming server or RTP (REAL TIME TRANSPORT PROTOCOL) streaming server in headend system and transmit broadcast channel through it. Should be.

In addition, most of network communication of smart terminals uses 3G data network or Wi-Fi network. However, since there are not many popular Wi-Fi networks that support multicast traffic, all RTP streaming services are also based on unicast. Consists of

Therefore, in order to use a digital cable broadcasting channel in a smart terminal, data must be transmitted in a unicast manner through an HTTP streaming server or an RTP streaming server built in a headend system.

However, the unicast method has a disadvantage in that the traffic load increases linearly as the number of users of the corresponding service increases.

For example, if one user uses a streaming service of 1 Mbps, when 100 users use the service, 100 Mbps of traffic occurs.

In addition, as the number of unicast users increases, it is necessary to increase the number of servers for managing sessions in the headend system.

For example, if you can manage 1000 sessions per streaming server, you have to run 10 streaming servers for 10,000 subscribers, so the cost of managing and maintaining traffic is significant.

Korean Unexamined Patent No. 10-2007-0025180

An object of the present invention for improving the above problems is to convert the digital cable broadcasting multicast stream transmitted from the headend system into a unicast stream in the set-top box to transmit the streaming traffic and session load of the streaming traffic of the digital cable broadcasting service The present invention provides a digital cable broadcasting set-top box, a system for transmitting a digital cable broadcasting service for a mobile terminal, and a method for transmitting the same.

Another object of the embodiment of the present invention for improving the above-mentioned problems is that the set-top box communicates with a streaming player installed in a mobile terminal such as a tablet PC or a smartphone through a wireless communication device connected to the set-top box by using short-range wireless communication. The present invention provides a digital cable broadcasting set-top box for a mobile terminal, a system for transmitting authentication, management, and channel information of the mobile terminal, and a method of transmitting the same.

Digital cable broadcasting set-top box for a mobile terminal according to an embodiment of the present invention for achieving the above object is a set-top box for receiving digital cable broadcasting from a head-end system, a wireless connection device connecting unit for connecting a wireless connection device, Doc An MTU conversion unit for connecting to a multicast IP band corresponding to a streaming channel of a predetermined digital cable broadcasting to a real-time streaming server of the headend system through a sheath tunnel, receiving a corresponding multicast stream, and converting the multicast stream into a unicast stream; And a streaming transmitter for transmitting the unicast stream to a predetermined IP of a mobile terminal connected through a wireless access device.

In this case, the digital cable set-top box for the mobile terminal includes a device connection manager for managing one or more of a connection IP or a connection state of the mobile terminal connected through the wireless access device and the available streaming device installed in the mobile terminal. It is preferable to further include a channel information providing unit for providing channel information of the streaming channel.

Digital cable broadcasting system for a mobile terminal according to another embodiment of the present invention for achieving the above object is a real-time streaming server of the head-end system for transmitting one or more multicast streams of digital cable broadcasting through a dachsis tunnel, wireless access A set top that connects a device, receives one of the multicast streams from the headend system, converts it into a unicast stream, and transmits the unicast stream to a predetermined IP of a mobile terminal communicating through the wireless access device. And a streaming player installed in the box and the mobile terminal, connected to the set top box through the wireless access device, and receiving and playing the unicast stream.

Digital cable broadcast transmission method for a mobile terminal according to another embodiment of the present invention for achieving the above object is a digital cable broadcast transmission method for a mobile terminal of a digital cable broadcasting system, the real-time streaming server of the headend system Transmitting one or more multicast streams of digital cable broadcasting through a tunnel; connecting a streaming player installed in a mobile terminal to a set top box connected to the wireless access device through a wireless access device; Receiving one of the multicast streams from a system and converting the multicast stream into a unicast stream; and transmitting, by the set top box, the unicast stream to a predetermined IP of the mobile terminal.

In this case, the digital cable broadcast transmission method for a mobile terminal includes the step of managing the set-top box including at least one of the connection IP or the connection state of the mobile terminal and the channel information of the streaming channel that the set-top box is available to the streaming player It is preferable to further include providing a step.

Digital cable broadcasting set-top box for mobile terminal, system and transmission method according to an embodiment of the present invention is a digital cable broadcasting service by converting the digital cable broadcasting multicast stream transmitted from the head-end system into a unicast stream from the set-top box It is possible to smoothly provide digital cable broadcasting service for mobile terminal while preventing overload of streaming traffic and session load, and to easily configure real-time streaming service for watching digital cable broadcasting of mobile terminal without additional server of headend system. have.

Digital cable broadcasting set-top box, a system and a transmission method for a mobile terminal according to an embodiment of the present invention, the set-top box communicates with a streaming player installed in a mobile terminal, such as a tablet PC, a smart phone through a wireless communication device connected to the set-top box The box provides short-range wireless communication to provide authentication, management, and channel information of the mobile terminal, thereby alleviating spatial viewing constraints of the viewer, and simplifying connection management and service provision of the mobile terminal.

1 is a block diagram of a general digital cable broadcasting system.
2 is a diagram illustrating transmission of a digital cable broadcast for a mobile terminal according to an embodiment of the present invention.
3 is a block diagram of a digital cable broadcasting set-top box and a mobile terminal for a mobile terminal according to an embodiment of the present invention.
4 is a data flow diagram of a digital cable broadcast transmission method for a mobile terminal according to one embodiment of the present invention;

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

2 is a diagram illustrating transmission of a digital cable broadcast for a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 2, the digital cable broadcasting system for a mobile terminal configures an RTP streaming server 60 that transmits RTP traffic for a digital cable broadcasting service by multicast to provide a streaming service to the headend system 50. do.

The cable modem termination system 20 (CMTS), which is a digital cable network device, is configured to transmit the RTP traffic to a digital set-top box 100 through a DOCSIS tunnel.

The set top box 100 includes an MTU converter 130 that receives a multicast stream transmitted by the RTP streaming server 60 and converts the multicast stream into a unicast stream.

According to a preferred embodiment, the MTU conversion unit 130 may be implemented in the form of a multicast-to-unicast relay module (MTU module) for receiving digital cable broadcast content, and may be configured to be universally applied to various equipment.

More preferably, the IP cable may be implemented in the form of a USB dongle for receiving digital cable broadcasting content to share the digital cable broadcasting content through a general AP in a user PC.

In addition, the set-top box 100 includes a wireless connection device connection unit 150 for connecting the wireless connection device 70, and communicates with the surrounding mobile terminal 200 through the wireless connection device 70 connected thereto.

Preferred embodiments of the mobile terminal 200 include a smart device capable of wireless communication through a short range wireless communication network such as the wireless access device 70 and Wi-Fi. Examples of such smart devices include tablet PCs and smart phones. , Smart terminals and the like.

In addition, the mobile terminal 200 is provided with a streaming player 210 for receiving and playing the multicast stream of the digital cable broadcast transmitted from the head-end system 50.

The streaming player 210 is connected to the set top box 100 through the wireless access device 70, the set top box 100 is connected to the streaming channel available to the mobile terminal 200 is connected to the streaming player ( 210).

For example, when a user using the streaming player 210 searches for channel information of a streaming channel provided by the set top box 100 and selects one of them, the MTU converter of the set top box 200 ( 130 receives the multicast traffic by connecting to a multicast IP corresponding to the service and transmits streaming traffic to the IP address of the mobile terminal 200.

In this case, the MTU conversion unit 130 transmits the IP address of the mobile terminal 200 directly to the IP address of the mobile station 200 instead of the multicast method.

Detailed configurations of the set top box 100 and the mobile terminal 200 will be described in detail with reference to FIG. 3.

3 is a block diagram of a digital cable broadcasting set-top box and a mobile terminal for a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 3, the set top box 100 is a set top box for receiving a digital cable broadcast from a head end system. The set top box 100 is a wireless access device connection unit 150 for connecting a wireless access device 70 and a digital from the head end system. Receiving a multicast stream of cable broadcasting and converting it to a unicast stream MTU conversion unit 130 and transmitting the unicast stream to a predetermined IP of the mobile terminal 200 connected through the wireless access device 70 It includes a streaming transmitter 140.

In addition, the set-top box 100 further includes a device connection management unit 110 that manages including one or more of a connection IP or a connection state of the mobile terminal 200 connected through the wireless access device 70. desirable.

More specifically, the device connection management unit 110 performs authentication, device recognition and management of the mobile terminal 200 connected to the set-top box 100, and preferably includes session management of a unicast stream. Do.

In addition, the set top box 100 further includes a channel information providing unit 120 for providing channel information of a streaming channel available to the streaming player 210 installed in the mobile terminal 200.

In this case, the channel information providing unit 120 may provide the channel information to the streaming player 210 of the mobile terminal 200 in various embodiments.

For example, the channel information transmission table of the basic digital cable broadcasting not used for the mobile terminal is separately included as an additional identifier or a separate multicast IP band for channel information for identifying the transmission of the digital cable broadcasting stream for the mobile terminal is dedicated. In addition, the set-top box 100 may recognize the channel information of the digital cable broadcasting for the mobile terminal through this.

The set top box 100 receives a multicast stream of a digital cable broadcast from a real-time streaming server of the headend system through a dachsis tunnel.

Conventionally, in order to provide digital cable broadcasting for a mobile terminal in a headend system, it has been difficult to manage a traffic and session increase by providing a streaming service in unicast.

Accordingly, in order to prevent the limitation of services due to the increase of traffic and sessions, the overload of the streaming server is prevented in the same manner as the number of users, thereby providing the digital cable broadcasting service for the mobile terminal.

However, this prevents additional users from using the service and provides digital cable broadcasting services for mobile terminals only to limited users, which is not a preferable solution for providing digital cable broadcasting for mobile terminals.

On the other hand, according to the embodiment of the present invention, the headend system is solved even if the number of users increases by eliminating the traffic overload and the restriction on the number of sessions through the method of transmitting the real-time stream for the mobile terminal by multicast to the home of the digital cable broadcasting subscriber. RTP streaming server burden is not big.

That is, due to the characteristics of the multicast scheme, since a set-top box of a plurality of digital cable broadcasting subscribers is shared and used, the traffic does not increase even if the number of users increases.

In addition, when a new user's set-top box is added, the user is accommodated by a multicast join and leave protocol between the network switches, which has the advantage that there is no session load on the headend system.

As such, the digital cable broadcasting set-top box 100 for the mobile terminal converts the digital cable broadcasting multicast stream transmitted from the headend system into the unicast stream in the set-top box 100 and transmits the digital cable to the mobile terminal 200 to transmit the digital cable. Digital cable broadcasting service for mobile terminal can be smoothly provided while preventing overload and session load of streaming traffic of broadcasting service, so it is easy to configure real-time streaming service for watching digital cable broadcasting of mobile terminal without additional server of headend system. There is an advantage.

Meanwhile, the mobile terminal 200 includes a streaming player 210 that accesses the set top box 100 through the wireless access device 70 and receives and plays the unicast stream.

The streaming player 210 is a Wi-Fi communication unit 214 for short-range wireless communication with a wireless access device 70, a set-top box connection unit 211 for recognizing and connecting to the set-top box 100 through the wireless access device 70, And a channel selector 212 for selecting a desired channel among the one or more channels provided by the set-top box 211 and a streaming receiver 213 for receiving a unicast stream of the channel selected by the user.

Since the streaming player 210 of the mobile terminal 200 using the streaming service needs to perform unicast-accessible Wi-Fi communication, a wireless access device 70 connected to the digital cable set-top box for the mobile terminal (WiFi AP) is provided. The set-top box 100 is connected and set to transmit the unicast stream between the set-top box 100 and the mobile terminal 200.

In addition, the streaming player 210 installed in the mobile terminal 200, such as a smart phone, smart pad is the IP that the digital cable set-top box 100 for the mobile terminal is transmitted corresponding to the channel selected by the user through a cable network Set to send the data converted from IP multicast stream to IP unicast stream.

As described above for this configuration, the digital cable set-top box 100 for the mobile terminal is provided with an MTU conversion unit 130 for converting multicast traffic into unicast traffic, the unicast traffic of the mobile terminal 200 Support the reception of.

As such, the digital cable broadcasting system for the mobile terminal includes a streaming player 210 installed in the RTP streaming server 60 of the headend system 50, the digital cable set-top box 100 for the mobile terminal and the mobile terminal 200. By including and converting the multicast stream into a unicast stream to transmit wirelessly, it is possible to smoothly provide a streaming service to a large number of subscribers without increasing traffic in the headend system.

In addition, even if the number of subscribers increases, the unicast sessions are all handled in the digital cable set-top box 100, so that the additional cost of management and maintenance is reduced because no additional server for session management is needed in the head-end system 50. .

In addition, the digital cable broadcasting system for a mobile terminal according to an embodiment of the present invention is a streaming player installed in a mobile terminal 200 such as a tablet PC, a smartphone via the wireless communication device 70 connected to the set-top box 100 Communication with the 210 allows the set-top box 100 to provide authentication, management, and channel information of the mobile terminal using short-range wireless communication, thereby reducing spatial viewing constraints of the viewer and providing access management and service of the mobile terminal 200. This is easy.

4 is a data flow diagram of a digital cable broadcast transmission method for a mobile terminal according to one embodiment of the present invention.

Referring to FIG. 4, the digital cable broadcasting transmission method for a mobile terminal is a digital cable broadcasting transmission method for a mobile terminal of a digital cable broadcasting system, and the real-time streaming server 60 of the headend system receives a multicast stream of digital cable broadcasting. Transmitting one or more (S110), the streaming player installed in the mobile terminal 200 is connected to the set-top box 100 connected to the wireless access device through a wireless access device (S120, S125), the set-top box 100 Receiving one of the multicast streams from the headend system 60 and converting the multicast streams into unicast streams (S140, S145, S147) and the set-top box 100 is used in the mobile terminal 200. Transmitting the unicast stream to the set IP (S150, S155).

In this case, the digital cable broadcasting transmission method for the mobile terminal includes the step of managing the set-top box 100 including at least one of the connection IP or the connection state of the mobile terminal 200 (S125) and the set-top box 100 The method may further include providing channel information of the streaming channel available to the streaming player 200 (S130 and S135).

The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. However, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. .

10: Headend System 20: CMTS
30: cable network 60: RTP streaming server
70: wireless access device 100: device connection management unit
120: channel information providing unit 130: MTU conversion unit
140: streaming transmission unit 150: wireless connection device connection
200: mobile terminal 210: streaming player
211: set-top box connection 212: channel selector
213: streaming receiver 214: Wi-Fi communication unit

Claims (5)

A set top box for receiving digital cable broadcasting from a headend system,
A wireless connection device connecting unit for connecting a wireless connection device;
An MTU converting unit connected to a multicast IP band corresponding to a streaming channel of a predetermined digital cable broadcasting to a real-time streaming server of the headend system through a docs tunnel and receiving a corresponding multicast stream and converting the multicast stream into a unicast stream; And
And a streaming transmitter for transmitting the unicast stream to a predetermined IP of a mobile terminal connected through the wireless access device.
The method of claim 1,
A device connection manager for managing at least one of an access IP or a connection state of a mobile terminal connected through the wireless access device; and
And a channel information provider for providing channel information of the streaming channel available to the streaming player installed in the mobile terminal.
In the digital cable broadcasting system for a mobile terminal,
A real time streaming server of a headend system for transmitting one or more multicast streams of digital cable broadcasting through a dachsis tunnel;
Connect a radio access device, receive one of the multicast streams from the headend system, convert it to a unicast stream, and transmit the unicast stream to a predetermined IP of a mobile terminal communicating through the radio access device. A set top box; and
And a streaming player installed in the mobile terminal, connected to the set top box through the wireless access device, and receiving and playing the unicast stream.
In the digital cable broadcast transmission method for a mobile terminal of a digital cable broadcast system,
a) the real-time streaming server of the headend system transmitting one or more multicast streams of digital cable broadcasts through a dachshise tunnel;
b) connecting the streaming player installed in the mobile terminal to the set-top box to which the wireless access device is connected through the wireless access device;
c) the set top box receiving one of the multicast streams from the headend system and converting it to a unicast stream; and
and d) transmitting, by the set top box, the unicast stream to a predetermined IP of the mobile terminal.
5. The method of claim 4,
e) managing, by the set-top box, including one or more of an access IP or a connection state of the mobile terminal; and
and f) providing, by the set-top box, channel information of a streaming channel available to the streaming player.
KR1020120011178A 2012-02-03 2012-02-03 Digital cable broadcast settop box for mobile terminal, the system and transport method thereof KR20130090103A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9414095B1 (en) 2015-04-10 2016-08-09 Ses S.A. Linear video distribution methods, systems, and devices
KR20160097538A (en) * 2015-02-09 2016-08-18 주식회사 케이티 Method and server for providing contents through udp based multicast and user device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160097538A (en) * 2015-02-09 2016-08-18 주식회사 케이티 Method and server for providing contents through udp based multicast and user device
US9414095B1 (en) 2015-04-10 2016-08-09 Ses S.A. Linear video distribution methods, systems, and devices

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