Method, system and device for data transmission

A data transmission and data technology, applied in the field of data transmission, can solve the problems of sudden change of code rate and unstable data flow, and achieve the effect of smooth data transmission flow and good live broadcast effect.

Active Publication Date: 2008-10-29
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology uses the leaky bucket technology to smooth the data flow, that is, the average code rate is used to send each time, and the rest of the data is cached first, that is, the "peak" data is cut and sent together with the "trough" data, but in practical applications , code rate mutations often occur and last for a period of time,
[0007] In addition, as the number of concurrent users increases, data traffic will also be unstable

Method used

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  • Method, system and device for data transmission
  • Method, system and device for data transmission

Examples

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Embodiment Construction

[0036] refer to figure 1 , in the mobile (mobile phone) TV system, the mobile (mobile phone) TV user terminal (UE) accesses the IP network through the GGSN, and the set-top box (STB) and the PC are directly connected to the IP network through various access means, such as ADSL , Packet-switched Streaming Server (PSS, Packet-switched Streaming Server) is generally located in the core network, and provides streaming services for various clients. At present, streaming media generally uses RTSP / RTP / RTCP protocol clusters to control and transmit streaming media data. RTSP (RFC 2326) is used to establish and control a time-synchronized stream of continuous media. RTSP is a standard streaming media protocol and usually uses an independent transport protocol (such as RTP) to transmit media data. RTP (RFC 1889, RFC 1890, RFC 3550) provides time information and enables A / V stream synchronization. RTP does not deal with resource reservation and cannot guarantee the quality of service o...

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Abstract

The invention discloses a data transmission method, a system and a device thereof. The method comprises the following steps: a streaming media server receives a data packet from a coder and carries out cache; the information of data transmission flow forecasted by the coder is obtained; according to the size of the received data packet, the information of data transmission flow of the coder and the real-time code rate of an output channel, the transmission time of the data packet is determined or / and the data transmission speed is adjusted; data is transmitted according to the determined transmission time or / and transmission speed. The invention also discloses the corresponding system and the device. By using the method, the system and the device of the invention, the smooth data transmission flow is realized, the requirement for real-time data transmission of direct broadcasting service is met and good direct broadcasting effect is achieved.

Description

technical field [0001] The invention relates to the technical field of multimedia broadcasting and communication, in particular to a data transmission method, system and device. Background technique [0002] With the integration and development of streaming media, wireless broadband, mobile communication technology and Internet technology, new applications such as mobile (mobile) TV have gradually become hot spots, and mobile (mobile) TV, as a transformation of new media integration, will bring huge business opportunities and development prospects. [0003] There is an important service in streaming media, that is, the live broadcast service Live TV, which requires one or more encoders (Encoders) to compress and encode the streaming media data in real time to obtain live data. The stream is pushed to the client. [0004] In view of the real-time requirements of live data, when a user accesses and watches the same channel at any time, the programs they see should be the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/00
CPCH04L47/10H04L47/14H04N21/23805H04N21/6377H04N21/658
Inventor 罗泽文仇刚刘启铭
Owner XFUSION DIGITAL TECH CO LTD
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