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File transfer method, device and system

A file transmission and file technology, applied in the field of communication, can solve the problems of inability to provide, multi-bandwidth, waste of resources, etc., and achieve the effect of saving broadcast network resources

Active Publication Date: 2011-07-27
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the theoretical bandwidth of TD-MBMS is 384K, in practical applications, it is often impossible to provide so much bandwidth, especially when many broadcast services are carried out, the bandwidth is particularly precious. Transferring interactive files in mobile video services will lead to waste of resources

Method used

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  • File transfer method, device and system
  • File transfer method, device and system
  • File transfer method, device and system

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Embodiment Construction

[0036] In the technical solution provided by the embodiment of the present invention, the same broadcast channel is used, based on the UDP protocol, to transmit streaming data and interactive service files through two ports respectively. The terminal simultaneously parses the data packaged by the RTP and FLUTE protocols; on the side of the multimedia broadcasting service platform, the SG (Service Guide, service guide) server adds SDP (Session Description Protocol, Session Description Protocol) file. SMF (Service Management Function, business management function) generates relevant SDP files, and the content server supports data broadcasting on different ports and the same channel.

[0037] The following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present inve...

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Abstract

The embodiment of the invention discloses a file transfer method, comprising the following steps of: receiving an audio video program file and an interactive service file corresponding to the audio video program file; coding the interactive service file and the audio video program file, and respectively issuing the coded interactive service file and the audio video program file to a terminal by virtue of different ports of the same broadcast channel. By applying the embodiment of the invention, broadcast network resource can be effectively saved in a multimedia broadcasting service. The embodiment of the invention also discloses a device and system applying the method.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a file transmission method, device and system. Background technique [0002] With the development of communication networks, multimedia broadcast services based on TD-MBMS (Time Division-Multimedia Broadcast Multicast Service, Time Division Multimedia Broadcast Multicast Service) have been more and more widely used. Multimedia services, including streaming video broadcasting, TD-MBMS mobile phone news, video, traffic information and interactive services and other business products. The TD-MBMS-based multimedia broadcast service broadcasts and distributes various multimedia service contents for users through the TD-MBMS broadcast channel. [0003] Among them, the streaming video broadcasting is the video service content delivered by streaming broadcasting, such as the news broadcast of the central one. The terminal receives the broadcast and TV program content, pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N21/238H04N21/40H04N21/6405H04N19/85
Inventor 陈佳科张慧媛王静董靖宇
Owner CHINA MOBILE COMM GRP CO LTD