KR100628318B1 - Real-time broadcasting service system and Method thereof using access mediator - Google Patents

Abstract

The present invention relates to a method for providing a real-time personal broadcast service by connecting a user terminal of a mobile non-communication device such as a digital camcorder to a broadband integrated network through an access mediator. (a) receiving a request for a real-time broadcast service from a mobile non-communication device user terminal connected to an access mediator, and providing a list of broadcast servers providing the broadcast service; (b) receiving a user authentication message from a broadcast server selected from the provided broadcast server list by the user of the terminal, generating and transmitting the real time broadcast service start notification message, which is a response message, to the selected broadcast server; (c) a session for receiving a session establishment request message of video / audio data constituting the broadcast service, which is a response message to the start notification message, from the selected broadcast server and transmitting the video / audio data to the broadcast server. Setting up; And (d) RTP packetizing the audio / video data and transmitting the packet to the broadcast server through a set session.

Description

Real-time broadcasting service system and method using access mediator

1 is a view showing Taeyoung of providing a real-time personal broadcasting service using an access mediator from a broadband integrated network perspective.

2 is a diagram schematically illustrating an access mediator applied to an implementation of the present invention.

FIG. 3A is a diagram illustrating a configuration of a preferred embodiment of the present invention by combining a message flow between an internal block and an access block of the access mediator shown in FIG. 2.

Figure 3b shows the flow of a preferred embodiment of the present invention.

3c to 3f show the overall flow of the preferred embodiment shown in FIG. 3b.

The present invention relates to a method and a system for providing a real-time broadcasting service using an access mediator. More particularly, the present invention relates to a user equipment of a mobile non-communication device, such as a digital camcorder, by connecting an access mediator to a broadband integrated network. The present invention relates to a method and system for providing a real-time personal broadcast service to provide a real-time personal broadcast service.

Real-time personal broadcasting service that is a convergence service of communication broadcasting using mobile non-communication devices such as digital camcorder owned by a large number of users by establishing Broadband convergence network (BcN) capable of wired / wireless integration and communication broadcasting convergence service It is necessary to have a medium to induce the activation of broadband convergence network by developing and providing it to service providers and service providers.

However, since the existing real-time personal broadcasting service can transmit real-time broadcasting data only by using expensive fixed system such as personal computer and media streaming gateway in the Best Effort network where quality is not guaranteed, it is necessary for the broadband integrated network that requires mobility. It is not suitable as a medium to connect. In addition, in order to transmit real-time personal broadcast data, the media program is received from the broadcast server and installed in the personal computer system, and this program can be sent only after executing this program. Therefore, the media program provided by the corresponding broadcast server is highly dependent. It was.

As a result, there is a need to build a low-cost access mediator that can be secured at any time, anywhere, anytime, anywhere. Therefore, in order to provide real-time personal broadcasting service using the camcorder which is a mobile non-communication device on the access mediator, the hardware that connects the IEEE1394 interface connected to the camcorder and the IEEE802.11b / g and HPi interface connected to the broadband integrated network to the access mediator In addition to the configuration, there is a need for a method of providing a real-time personal broadcasting service that does not depend on a broadcasting server by using a standard streaming protocol.

Therefore, an object of the present invention is to provide a method for providing a real-time broadcast service on an access mediator that provides a base technology for creating an ubiquitous environment so that an access mediator user can provide a real-time broadcast service anytime, anywhere.

The present invention has been made to meet the above-mentioned background, and the technical problem to be achieved by the present invention is portable and mobile to induce activation of a broadband integrated network capable of providing a real-time broadcasting service without being constrained by construction. The present invention provides a method and system for enabling a broadcast service in real time anytime and anywhere using this guaranteed access mediator.

In order to achieve the above object and technical problem, the broadcast service providing method using the access mediator disclosed in the present specification includes (a) receiving a real-time broadcast service execution request from a mobile non-communication device user terminal connected to the access mediator. Providing a list of broadcast servers providing a;

(b) The user of the terminal receives a user authentication message from a selected broadcast server from the provided broadcast server list, selects a broadcast station to perform the broadcast service among various broadcast stations opened in the selected broadcast server, and Generating and transmitting the real time broadcast service start notification message, which is a response message, to the selected broadcast server;

(c) a session for receiving a session establishment request message of video / audio data constituting the broadcast service, which is a response message to the start notification message, from the selected broadcast server and transmitting the video / audio data to the broadcast server. Setting up; And

(d) after the RTP packetization of the audio / video data, transmitting the packet to the broadcast server through the established session to achieve the object and technical problem of the present invention.

In order to achieve the above object and technical problem, the broadcast service providing system using the access mediator disclosed in the present disclosure receives a real-time broadcast service execution request from a mobile non-communication device user terminal connected to the access mediator to provide the broadcast service. A broadcast server list providing unit providing a list of broadcast servers;

The user of the terminal receives a user authentication message from the broadcast server selected from the provided broadcast server list, and generates a broadcast service start notification message for generating and transmitting the real time broadcast service start notification message, which is a response message, to the selected broadcast server. A transmission unit;

Receiving a session establishment request message of video / audio data constituting the broadcast service, which is a response message to the start notification message, from the selected broadcast server and setting up a session for transmitting the video / audio data to the broadcast server; Session setting unit; And

After the RTP packetization of the audio / video data, a video / audio data transmission processing unit for transmitting the packet to the broadcast server through the set session to achieve the object and technical problem of the present invention.

Hereinafter, in order to clarify the technical spirit of the present invention, the configuration and operation thereof will be described in detail with reference to the accompanying drawings based on the embodiments of the present invention. Although the same reference numerals have been given even in different drawings, it will be appreciated that components of other drawings may be cited when necessary in describing the drawings.

First of all, for convenience of understanding, the core of the technical idea provided by the present invention is first presented, and a broadcast provider provides a predetermined interface to a access mediator for a mobile non-communication device terminal (for example, a camcorder) for real-time broadcasting service. Real time broadcast service is started by connecting via (typically IEEE1394 interface).

In the present invention, for the convenience of the broadcast provider, a broadcast server list mainly used by the broadcast provider is output so that the broadcast provider selects a desired broadcast server. Also, a list of broadcast stations established in the corresponding broadcast server is also received from the broadcast server to obtain a list of broadcast stations. It provides a convenient interface for the user to output and select by the broadcast provider.

In addition, by modularizing the real-time personal broadcasting service software so that it is not dependent on the system and using the standard streaming protocol (RTSP), the software can be reused to the maximum extent to be easily applied to other systems.

1 is a view showing Taeyoung of providing a real-time personal broadcasting service using an access mediator from a broadband integrated network perspective.

By using an access mediator (AM) in a BcN network, a personal broadcasting provider connects a camcorder, which is a mobile non-communication terminal, to an AM using an IEEE1394 interface, and in a BcN network, a WLAN (Wireless LAN), Connect via the HPi interface for convenient, real-time, personal broadcast services such as local cultural events, performances, non-broadcast sports, church services, and mobile news coverage and reports, anytime, anywhere, anytime, anywhere This is a conceptual diagram that presents a scenario.

2 is a diagram schematically illustrating an access mediator applied to an implementation of the present invention.

The access mediator 1 is largely composed of an access mediator function control unit [Access Mediator Control board Assembly (AMCA) 11] and an access mediator extension unit [AMEA (Access Mediator Extension board Assembly) 12]. ) Is a function control block of the access mediator, and includes a main function control unit [Access Mediator Control Hardware (AMCH)] and an external interface unit (TNIH (Terminal and Network Interface Hardware) 112), and the latter 12 is extended. The functional block includes an audio / video control unit [AVCH (Audio Video Control Hardware) 121] and an information input / output control unit [KLIH (Keyboard and LCD Interface Hardware, 122)].

The main function control unit (AMCH) 111 of the AMCA 11 is the most basic control block of the access mediator and controls the entire access mediator such as a processor, a memory, a PCI bus, and a power supply, and manages the interface between other control blocks. The main function control unit 111 plays a pivotal role in the implementation of the broadcast service disclosed herein.

The external interface unit (TNIH) 112 of the AMCA 11 is a block that is responsible for matching (interface) between the access mediator and the external terminal or the access mediator and the network (BcN network). The interface between the terminals is IEEE1394 and USB (Universal Serial Bus). It supports IEEE 802.11b / g, LAN and HPi as an interface with the network.

The audio / video control unit (AVCH) 121 of the AMEA 12 is a control block for processing video and audio in an access mediator and controls codec control and input and output of video and audio. The input / output device controllers KLIH 122 of the AMEA 12 are blocks that control the keypad and LCD of the access mediator.

The functions of the necessary control blocks related to the real-time personal broadcast service providing function are as follows.

The Access Mediator Control Function (AMCF) block located in the main function control unit (AMCH) 111 is a Real-time Broadcasting Control Function (RCBF) block when a personal broadcasting provider selects a real-time personal broadcasting service among a number of services provided by the access mediator. Real time personal broadcast service processing request. The Access Mediator Profile Management Function (APMF) block performs a function of providing a list of broadcast servers mainly used by a personal broadcast provider using an access mediator and corresponds to the broadcast server list providing unit 31 of the present invention.

The RBCF block is a main control block for providing a real-time personal broadcasting service in an access mediator. The RBCF block provides authentication and session connection requests with a broadcast server to deliver broadcast data (audio and video streaming data) delivered from a camcorder. Controls audio and video streaming data using the Time Streaming Protocol protocol. AVCCF (Audio and Video Control protocol Control Function) block requests original broadcast audio and video streaming data to receive the original broadcast audio and video streaming data. MPEG4 Encoding is required for the MP4EF (MPEG4 Encoding Function) block, and MPEG-4 encoded broadcast audio and video streaming data are produced as RTP (Realtime Transport Protocol) packets and delivered to the broadcast server. As will be described later, the RBCF includes a start notification message generator / transmitter 32, a session setup unit 33, and a video / audio data transmission processor 34 of the present invention to provide a main function for realizing a real-time broadcast service. It is a block that controls and performs the remaining auxiliary functions.

The AVCCF block uses the AVC (Audio Video Control) protocol to control the playback and stop of camcorders connected to the IEEE1394 interface. The AVCCF block receives the original broadcast audio and video streaming data from the RBCF block and manages its own audio cues and videos. It provides the original broadcast audio and video streaming data in the queue.

The MP4EF (MPEG4 Encoding Function) block is a block that operates in conjunction with the MP4D (MPEG4 Device Driver) driver located in AVCH, and delivers the original broadcast audio and video streaming data received from the RBCF block to the MP4D driver. It delivers the encoded broadcast audio and video streaming data to the RBCF block.

FIG. 3A is a diagram illustrating a configuration of a preferred embodiment of the present invention by combining a message flow between an internal block and an access block of the access mediator shown in FIG. 2. Figure 3b is a view showing the flow of a preferred embodiment of the present invention, Figures 3c to 3f is a view showing the overall flow of the preferred embodiment shown in Figure 3b.

The real-time personal broadcasting service personalizes the list of broadcasting servers in the broadband integrated network, in which the broadcasting server list providing unit 31 provides a broadcasting service when the broadcasting provider (access mediator user) makes a request for real-time broadcasting service. It is started by providing to the broadcast provider (S301). Step S301 is specified by steps S1 to S12.

When the broadcast provider, the user of the access mediator, connects the camcorder to the access mediator through the IEEE1394 interface, the access mediator outputs a list of all services that can be provided through the IEEE1394 interface on the LCD screen mounted thereon (S1). The broadcast provider selects a real-time broadcast service by using a keypad mounted on the access mediator from among the outputted service list and requests a broadcast service (S2).

The AMCF receives the broadcast service request (S3) and requests the RBCF, which is the main control block of the real-time personal service, to process the real-time personal broadcast service request (S4). The RBCF receives the processing request (S5) and requests a list of broadcast servers mainly used by the broadcast provider from the broadcast server list provider (APMF) 31, which manages the list of broadcast servers mainly used by the personal broadcast provider. S6). Receiving a list request of the broadcast server (S7), the broadcast server list providing unit 31 searches for a list of broadcast servers corresponding to the requested broadcast provider and transmits the list to the RBCF (S8). When the RBCF receives the list of broadcast servers from the APMF (S9), the RBCF outputs the broadcast server list on the LCD screen (S10). The broadcast provider selects a broadcast server to provide a broadcast service from the broadcast server list presented through the LCD screen by using a keypad (S12).

After the broadcast provider selects the broadcast server, a user authentication request is made to the selected broadcast server 2, and the broadcast service start notification message generation / transmitter 32 receives the authentication message from the broadcast server 2 and receives the real time broadcast service. The notification message to start the transmission to the broadcast server (2) (S302), the step S302 is specified by the steps S13 to S23.

Having received the selected broadcast server 2 (S13), the RBCF transmits an authentication request message (AUTHENTICATION message) for authentication of the personal broadcast provider to the selected broadcast server 2 (S14).

The broadcast server 2 receives the AUTHENTICATION message (S15) and performs the authentication procedure of the personal broadcast provider requesting authentication (S16). When authentication is completed, the authenticated personal broadcast provider advances through the broadcast server 2 in advance. The user authentication message (AUTHENTICATION_OK message) including the broadcasting station list and the authentication key, which is composed of the broadcasting station name and the broadcasting station identifier, is transmitted to the RBCF (S17). The RBCF outputs the list of broadcast stations received from the broadcast server 2 (S18) on the LCD screen (S19). The personal broadcast provider selects a broadcast station for real-time personal broadcast service from the list of broadcast stations displayed on the LCD screen (S20) by using the keypad (S21). The start notification message generation / transmitter 32 in the RBCF receives the selected broadcast station (S23) and has a broadcast station identifier and an authentication key to notify the broadcast server 2 to start a real-time personal broadcast service, that is, start a broadcast service. The notification message (START message) is transmitted (S23).

After transmitting the START message to the broadcast server 2 (S302), the broadcast server 2 requests a session setup for transmission of video / audio data constituting a broadcast service to be provided to a general user, and sets up a session setup unit ( 33) establishes a session for the request (S303). Step S303 is specified by steps S24 to S44.

In order to set up the session, the preliminary work is first examined for the feasibility of executing the personal broadcast service. Upon receiving the START message (S24), the broadcast server 2 receives a broadcast station identifier and an authentication key to request the individual to start the broadcast service. The execution of the real-time personal broadcast service of the broadcast provider is checked (S25). In this case, the validity check is a check of whether a broadcast station corresponding to a broadcast station identifier received by the broadcast server is in use, because the broadcast server gives an error result if the broadcast station requesting the broadcast service is already in use.

If the test result is not valid (S26), the error message is sent to the RBCF with an error result (S27), if it is (S26), the station status is changed to 'in use' (S28) and the success result is included. Send a response message for the START message to the RBCF (S29) and then use the Real Time Streaming Protocol (RTSP), a standard streaming protocol, to request the audio and video attribute information provided by the access mediator (DESCRIBE message). In addition, an RTSP URL (Uniform Resource Locator) composed of an access mediator's Internet address, authentication, and broadcaster identifier is included and transmitted to the RBCF (S30).

Upon receiving the response message for the START message (S31), if the result of the validity check is an error (S32), the RBCF outputs an error result on the LCD screen (S33) and transmits an abnormal real-time personal broadcast service processing completion to the AMCF (S34). ). If the result of the validity check is successful (S32), the RBCF receives the DESCRIBE message (S35) and configures Session Description Protocol (SDP) information containing the audio and video attributes provided by the access mediator to respond to the DESCRIBE message. OK message) is transmitted to the broadcast server 2 (S36).

Upon receiving the OK message (S37), the broadcast server 2 transmits a message (VD_SESSION_SETUP message) requesting the video session setup to the session setup unit 33 of the RBCF (S38). Having received the VD_SESSION_SETUP message (S39), the session setup unit 33 performs a video session setup process and transmits a session setup completion message (VD_SETUP_OK message) for the VD_SESSION_SETUP message to the broadcast server 2 (S40). Receiving the VD_SETUP_OK message (S41), the broadcast server 2 transmits a SETUP message (AD_SESSION_SETUP message) requesting audio session setup to the session setup unit 33 (S42). Having received the AD_SESSION_SETUP message (S43), the session setup unit 33 performs an audio session setup process and transmits a session setup completion message (AD_SETUP_OK message) for the AD_SESSION_SETUP message to the broadcast server 2 (S44).

After setting up the session (S303), the video / audio data transmitter 34 encodes the video / audio data acquired by the broadcast provider using the camcorder, makes it into an RTP packet, and transmits it to the broadcast server 2 (S304). The broadcast server 2 transmits the received RTP packet to a broadcast viewer to visually perform a broadcast service. Step S304 is specified by steps S45 to S66.

Receiving the AD_SETUP_OK message (S45), the broadcast server 2 receives a video and audio streaming data, which is broadcast streaming data from a broadcast provider, and sends a message (PLAY message) to transmit the two streaming data to start broadcasting in earnest. The video / audio data transmission processor 34 transmits the data (S46). In response to the PLAY message (S47), the video / audio data transmission processing unit 34 transmits the broadcast video and audio streaming data through the RTP (Realtime Transport Protocol) protocol. And prepare for activation of the RTP port (A-RTP) for audio transmission (S48). Then ask the AVCCF, which controls the video cues and audio cues that store the video / audio data (unencoded video / audio data) of the original broadcast from the camcorder, to request the video / audio data of the original broadcast in one frame size unit. (S49).

Upon receiving the original broadcast video and audio data request (S50), the AVCCF reads the video / audio data of the original broadcast by one frame size from the video queue and the audio queue (S51) and transmits it to the video / audio data transmission processor 34. In operation S52, the video / audio data transmission processor 34 transmits the received original broadcast video and audio data to the MP4EF and requests MPEG4 encoding (S54). Upon receiving the MPEG4 encoding request (S55), the MP4EF delivers the original broadcast video and audio data to the MP4D for encoding the received original broadcast video and audio data (S56).

After receiving the MPEG4 encoding request from the MP4EF (S57), the MP4D encodes the original broadcast streaming video and the audio streaming data into MPEG4 (S58), and delivers the encoded video streaming data and the audio streaming data to the MP4EF (S59). / Transfer to the audio data transfer processing section 34 (S61).

Receiving the encoded video streaming data and the audio streaming data (S62), the video / audio data transmission processor 34 has a maximum allowable size within which the received encoded video streaming data and the audio streaming data can be transmitted through the BcN network. The back side (S63) consists of one RTP packet (S64) and transmits it to the broadcast server 2 (S66). If the allowable size is exceeded, it divides into several RTP packets (S65) and configures the broadcast server 2 Transfer to (S66). The transmission of the RTP packet may be implemented by the RTSP. The transmission of the RTP packet using the RTSP provides an advantage that the present invention can be used universally without being dependent on the specification of a specific broadcast providing system.

When the broadcast server 2 receives an RTP packet including MPEG-4 encoded video and audio streaming data (S67), the broadcast server 2 broadcasts it to a broadcast viewer (S68) and provides a broadcast service in real time.

When the transmission of the RTP packet is completed, that is, the broadcast is terminated, the personal broadcast service termination message (TEARDOWN message) is transmitted to the RBCF (S69). Receiving the TEARDOWN message (S70), the RBCF terminates the transmission of the RTP packet, which is MPEG-4 encoded video and audio data (S71), terminates the session connection with the broadcast server 2 (S72), and then completes the personal broadcast service processing. To the AMCF (S73).

The present invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored.

Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention.

Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

Implementing the present invention has the following effects.

First, by providing a real-time broadcasting service control method to accommodate the real-time personal broadcasting service through the broadband integrated network in the access mediator, the general individual can service the real-time personal broadcasting in the broadband integrated network.

Secondly, it provides a list of broadcast servers and a list of broadcast stations mainly used by a broadcast provider as an access mediator user, and a convenient user interface for the personal broadcast provider to select one of the lists.

Third, the real time broadcast service software can be modularized so that it is not dependent on the system, and the standard streaming protocol (RTSP) can be used to increase the reusability of the real time broadcast service control software.

Claims (8)

(a) receiving a real-time broadcast service request from a user terminal of a mobile non-communication device connected to an access mediator, and providing a list of broadcast servers providing the broadcast service; (b) The user of the terminal receives a user authentication message from a selected broadcast server from the provided broadcast server list, selects a broadcast station to perform the broadcast service among various broadcast stations opened in the selected broadcast server, and Generating and transmitting the real time broadcast service start notification message, which is a response message, to the selected broadcast server; (c) a session for receiving a session establishment request message of video / audio data constituting the broadcast service, which is a response message to the start notification message, from the selected broadcast server and transmitting the video / audio data to the broadcast server. Setting up; And and (d) converting the audio / video data into an RTP packet, and then transmitting the packet to the broadcast server through the established session. The method of claim 1, wherein step (a) (a1) the access mediator presenting a list of all possible services to a display panel mounted to the access mediator; (a2) the user selecting a real-time broadcast service from the list of all services and requesting the access mediator to perform the broadcast service; (a3) the user requesting the access mediator to present a list of broadcast servers that perform the broadcast service; And and (a4) the access mediator presenting the list of the broadcast server to the display panel in response to the list request of the broadcast server. The method of claim 1, wherein step (b) (b1) transmitting, by the user, an authentication request message for authentication of the user to the selected broadcast server; (b2) the broadcast server performing an authentication procedure of the user and transmitting an authentication message to the access mediator; And (b3) selecting, by the user, one broadcasting station to provide the broadcasting service among broadcasting stations previously opened in the selected broadcasting server; (b4) real-time broadcasting using the access mediator, wherein the access mediator includes the identifier of the selected broadcasting station and transmits the broadcast service start notification message to the broadcast server in response to the authentication message. How we deliver the service. The method of claim 1, wherein step (c) (c1) checking, by the broadcast server, whether the selected broadcast station is currently in use and whether the execution request of the broadcast service by the user is valid; (c2) transmitting an error response message to the notification message if it is invalid as a result of the inspection, and if so, to the access mediator a message requesting attribute information of audio and video of the broadcast service using RTSP; (c3) the access mediator constructing SDP information including the attribute information and transmitting a response message to the attribute information request message to the broadcast server; (c4) after the broadcast server receives the response message for the attribute information request message, transmitting the message for requesting the session establishment to the user; And and (c5) establishing the session with respect to the session establishment request message and transmitting a session establishment completion message to the broadcast server. The method of claim 1, wherein step (d) (d1) transmitting, by the broadcast server, a transmission request message of the video / audio data to the access mediator; (d2) the access mediator activating an RTP port for delivering the video data and an RTP port for delivering audio data; (d3) encoding the video / audio data; (d4) RTP packetizing the encoded video / audio data; And (d5) real-time broadcasting service providing method using an access mediator, characterized in that the implementation comprises the step of transmitting the RTP packet to the broadcast server. 6. The method of claim 5 wherein the RTP packetization is If the size of the encoded video / audio data is within the maximum allowable size that can be transmitted through the broadband converged network network, it consists of one RTP packet, and if it exceeds the allowable size, it divides into a plurality of RTP packets. A method of providing a real time broadcasting service using an access mediator. The method of claim 5, wherein (d4) to (d5) step A method of providing a real time broadcast service using an access mediator, wherein the broadcast service is implemented through an RTSP so that the broadcast service can be performed universally without being dependent on a specification of a specific broadcast providing system. A broadcast server list providing unit for providing a list of broadcast servers providing the broadcast service to a request for a real-time broadcast service from a mobile non-communication device user terminal connected to an access mediator; The user of the terminal receives a user authentication message from the broadcast server selected from the provided broadcast server list, and generates a broadcast service start notification message for generating and transmitting the real time broadcast service start notification message, which is a response message, to the selected broadcast server. A transmission unit; A session setting for receiving a session setting request message of video / audio data constituting the broadcasting service, which is a response message to the start notification message, from the selected broadcasting station and setting a session for transmitting the video / audio data to the broadcasting station; part; And And a video / audio data transmission processor configured to transmit the packet to the broadcasting station through the set session after the RTP packetization of the audio / video data.

Images