KR100880569B1 - How to Transfer VAudio Content in Mobile IPE's EPI Environment - Google Patents

Abstract

The present invention provides a VOD content in a mobile IP's easy-to-use environment that reduces the buffering waiting time when the video on demend (VoD) content selected by the user in the mobile IP's easy-to-play environment is reduced. Of the transmission method of

When the content search request of the subscriber device is performed in an IP environment consisting of an IPTV server, a streaming server, and a subscriber device, the IP server transmits a content search list and initial playback section data of each content to the subscriber device. Initial data transmission process; A temporary buffering storing step of storing, by the subscriber apparatus, the initial data in a temporary buffer; A connection establishment process of reproducing the data of the temporarily buffered initial reproduction section and establishing a connection with the streaming server when there is a content reproduction selection from the subscriber apparatus; And a content transmission process of the streaming server transmitting and reproducing content data after the data of the initial reproduction section to the subscription device.

Description

METHODO FOR TRANSPORTING VOD CONTENTS IN ELECTRIC CONTROL TRANSPORT PROTOCOL ENVIRONMENT OF MOBILE IPTV}

The present invention provides a VOD content in a mobile IP's easy-to-use environment that reduces the buffering waiting time when the video on demend (VoD) content selected by the user in the mobile IP's easy-to-play environment is reduced. It relates to a transmission method of.

1 is a diagram illustrating a system configuration for a general IPTV service.

As shown in FIG. 1, a system for an IPTV service includes an IPTV server 10 as a service provider (SP) for performing subscriber access management and content data transmission control for providing an IPTV service, and an IPTV server. Streaming server (SS) 20 which encodes and transmits the content transmitted to the user as streaming data under the control of 10, and a content providing server as a content provider (CP) for supplying content. A server system comprising 30, a PSTN for supporting network communication by IP, a mobile communication network, and the like, and a subscriber connection unit for providing access points such as a base station 41, an access point 42, a LAN 43, and the like. And a subscriber device 50 such as a TV, a mobile terminal, a computer, and the like, which receive IPTV service through the subscriber connection unit.

The IPTV service provided with the system configuration as described above is a level of quality of service (QoS) required to allow a TV receiver to watch content transmitted through a wired or wireless network using an internet protocol (IP). It provides multimedia services such as television / video / audio / text / data delivered over IP-based networks that provide quality of experience, information protection, interaction and reliability.

In the IPTV environment having the above-described configuration, a VoIP-type service generally provides a search function through an electronic program guide (hereinafter, referred to as 'EPG') so that a user can easily find content to watch. do. The user receives a list of contents to be viewed through the content search function from the IPTV server 10, and requests the streaming server 20 for specific contents to be viewed based on the result, and the streaming server 20 In response to this, the requested media is transmitted to the user.

 When operating as described above. Whenever the user changes the content to be watched, the user must request the content and make a connection in order to receive the stream of the changed content. Therefore, when the user presses the viewing request button to watch the content, the above-described process is performed. Therefore, there is a problem that a predetermined time elapses until the playback is performed immediately.

Accordingly, the present invention is to solve the above-mentioned problems of the prior art, so as to reduce the waiting time for viewing the content after the user requests the content to be played in the IPTV VoIP service environment, such as a user terminal When the subscriber device 50 performs a search function through an electric program guide (EPG: Electric Program Guide) provided by the server 10 of the IPTV, the subscriber device (preliminary portion of the content corresponding to the search list provided in advance). It is an object of the present invention to provide a method for transmitting VOD content in mobile IPE's easy-to-use EPI environment that transmits and buffers the content, thereby reducing the waiting time for the content.

In order to achieve the above object, a method of transmitting VOD content in the mobile IPT environment of the present invention includes an initial service section in which an IP service providing server provides a content search list and an initial playback section of each content when a subscriber device requests a content search. An initial data transmission step of transmitting data to the subscriber device; A temporary buffering process in which the subscriber device stores the initial data in a temporary buffer, respectively; A connection establishment process of reproducing the data of the temporarily buffered initial reproduction section and establishing an association with the service providing server when the subscriber apparatus selects the content reproduction from the subscriber apparatus; And a content transmission process of the iPiF service providing server transmitting and reproducing content data subsequent to the data of the initial reproduction section to the subscription device.

The data transmission of the initial data transmission process and the content transmission process may be performed by a streaming control transmission protocol.

The temporary buffering process compares the data pre-stored in the temporary buffer with the newly received initial reproducing section data and updates the temporary buffer with newly received initial reproducing section data if it is not the same, and the data previously stored in the temporary buffer is stored in the temporary buffer. When the content data is not included in the content list, the data stored in the temporary buffer may be deleted.

The present invention described above buffers and stores the initial playback section data of each content in the initial content retrieval process when iVIP provides a VoD service in an environment, and performs connection setup while reproducing the buffered data when the content is selected. After the connection is established, the data after the buffered data is received and played.

The above-described present invention buffers an initial predetermined portion of content when watching a VoD content in an IPTV environment and provides an electronic program guide (EPG) service, and plays a server connection when the buffered content is played back when a content playback request is made. By doing this, it is possible to significantly shorten the waiting time during content reproduction.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a flowchart illustrating a process of a method of transmitting a VOD content in the mobile IPTV environment of the present invention.

In the description of FIG. 2, the invention server 10 and the streaming server 20 correspond to the service providing server as the idea of the present invention, and the present invention will be described in the same configuration as the idea that the service separates the service providing server.

As shown in Figs. 1 and 2, a user who wants to receive the VoIP service through the environment is connected to the IP server (hereinafter referred to as an "IPTV server") 10 through the subscriber device 50. Upon connection, the IPTV server 10 outputs an electronic program guide (EPG) to the subscriber device 50 so that a user can search for content. At this time, if the N content list included in the electronic program guide is included, the subscriber device 50 allocates N temporary buffers, and the IPTV server 10 transmits to the electronic program guide (EPG) through the streaming server 20. In the included content, an initial predetermined playback period is transmitted to the subscriber device 50 and buffered to be stored in each temporary buffer. At this time, the IPTV server 10 forms a connection between the streaming server 20 and the subscriber device 50 by using a streaming control transport protocol (SCTP) (S1).

Next, when there is a user input to the list of the electronic program guide, the IPTV server 10 determines whether the corresponding input is a search for other content or a selection of playback content (S2 and S3).

  When the user's input in the electronic program guide is content search in the above-described determination process, the IPTV server 10 searches for a new content list (S4), and simultaneously transmits the searched content list to the subscriber device 50. The data of the initial schedule playback section of the contents of the list is transmitted to the subscriber device 50 (S5).

The subscriber device 50 compares the data of the initial playback section of the transmitted content with the data pre-stored in the temporary buffer and maintains the same in the same case, and deletes data not in the list from the temporary buffer and waits for user input. The process is repeated to repeat the process (S6). If the data of the initial playback section of the transmitted content is different from the data previously stored in the temporary buffer, new data is stored in the temporary buffer, and data not in the list is stored in the temporary buffer. After deleting, the process returns to S2 and S3 waiting for user input and repeats the process (S7).

Next, while repeating the above-described process, if the user's input is content selection in steps S2 and S3, the initial playback data stored in the temporary buffer allocated to the content is copied to the main media device's buffer for playback. In the initial data reproduction process, the subscriber device 50 establishes a connection with the streaming server 20 by the streaming control transmission protocol (SCTP) (S8).

Thereafter, the streaming server 20 connected to the subscriber device 50 transmits the playback data after the initial playback data previously transmitted to the subscriber device 50 among the contents selected by the user to the subscriber device by the streaming method. After the user requests to play the content, the user can watch the content without additional waiting time (S9).

The present invention which performs the above-described process, the IPP buffers the initial playback data of the content at the time of transmission of the list in the VoD service in the system, and then buffered initial playback data if the content selection of the subscriber By transmitting the reproduction data after the initial reproduction data by the streaming method while reproducing, the contents can be reproduced without a buffering delay when the contents are reproduced.

1 is a network configuration diagram for a general IPTV service,

2 is a flowchart illustrating a process of a method of transmitting a VOD content in the mobile IPTV environment of the present invention.

* Explanation of symbols in the drawing 8

10: IPTV Server 20: Streaming Server

30: content providing server 40: access network

41: base station 42: access point

43: LAN 41 ~ 43: subscriber connection

50: subscriber device

Claims (3)

An initial data transmission process in which an iPiF service providing server transmits a content search list and initial reproduction section data of each content to the subscriber device when a content search request is made by the subscriber device; A temporary buffering process for storing, by the subscriber apparatus, the initial data in a temporary buffer; A connection establishment process of reproducing the data of the temporarily buffered initial reproduction interval and establishing an association with the service providing server if the subscriber apparatus selects the content reproduction from the subscriber apparatus; And a content transmission process of the iPTI service providing server transmitting and playing content data after the data of the initial playback section to the subscription device. The method of claim 1, wherein the data transmission process of the initial data transmission process and the content transmission process is performed by a streaming control transmission protocol. The method of claim 1, wherein the temporary buffering process, When the data previously stored in the temporary buffer and the newly received initial playback section data are not the same, the temporary buffer is updated with newly received initial playback section data, and the data previously stored in the temporary buffer is included in the list of contents. If the content data is not in the process of deleting the data previously stored in the temporary buffer VIP content transmission method in the mobile IP of the Epiji environment.

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