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Optimizing system and method for medium transmission on different transmission channels

A technology for media transmission and transmission channels, applied in the field of optimization methods for transmission channels, can solve problems such as differences in quality requirements, achieve the effects of ensuring QoS, saving and making full use of network resources, and reducing the number of lost packets

Inactive Publication Date: 2009-06-17
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The access methods of each user are heterogeneous, that is, access may be through broadband or narrowband access. At the same time, each user is different in terms of processing power, storage device capacity, and quality requirements for receiving media.

Method used

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  • Optimizing system and method for medium transmission on different transmission channels
  • Optimizing system and method for medium transmission on different transmission channels

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings.

[0060] The system frame diagram of the present invention is as attached figure 1 As shown, a resource manager, an RSVP module, and a code rate conversion module are arranged on both the endpoint and the intermediate node.

[0061] The RSVP module sends control packets of QoS parameters through the resource reservation protocol. RSVP mainly sends two types of control packets: PATH signaling and RESV / RESVERROR signaling.

[0062] Resource managers can also communicate with each other to reserve and dynamically allocate resources.

[0063] The working process of the present invention is attached figure 2 As shown in the figure, the sender host sends PATH signaling to the receiver through intermediate nodes such as routers and establishes a transmission path for multimedia streams. When the receiving end receives the PATH signaling, it starts to reserve resources, and ...

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Abstract

This invention puts forward a media transmission optimizing system on different transmission channels and an optimized method including a resource preserved protocol module set on network transmission nodes, a resource management module and a code rate conversion module, in which, the resource preservation module transmits the control message with QoS parameters based on the resource preservation protocol to realize dynamic transmission of preservation resources and code rate conversion to the media to increase the usability of network resources.

Description

technical field [0001] The invention belongs to the technical field of multimedia network transmission, and in particular relates to an optimization method when multimedia data flow passes through different transmission channels in a heterogeneous network. technical background [0002] The rapid development of modern communication technology makes the network transmission of multimedia information possible. However, how to provide access support for users with different access methods and bandwidth resources is a problem that needs to be solved at present. The access methods of each user are heterogeneous, that is, access may be through broadband or narrowband access. At the same time, each user is different in terms of processing power, storage device capacity, and quality requirements for receiving media. How to overcome these differences currently uses adaptive bit rate control technology to adjust the characteristics of data streams to meet available network resources i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02
Inventor 罗笑南龚楚律
Owner SUN YAT SEN UNIV
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