VoD network and ordering method

A video-on-demand and network technology, applied in two-way working systems, electrical components, transmission systems, etc., can solve problems such as multiple costs, insufficient data bandwidth, and network congestion, and achieve the goals of avoiding large-scale transformation, improving user experience, and saving costs Effect

Active Publication Date: 2008-03-19
西安思华信息技术有限公司
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AI Technical Summary

Problems solved by technology

Due to the huge amount of video signal information, it takes up a lot of transmission bandwidth, which often causes network congestion. In particular, when a large number of users are on-demand at the same time, the downlink data often becomes slow due to insufficient bandwidth.
If the existing network is transformed, it will cost a lot of money

Method used

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  • VoD network and ordering method
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  • VoD network and ordering method

Examples

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Embodiment Construction

[0072] The purpose of the present invention is to provide a video-on-demand network and an on-demand method that utilizes QAM equipment and an HFC network and separates uplink data and downlink data. Apply the lower-cost HFC network to the video-on-demand network. According to the present invention, a kind of video-on-demand network is provided, use QAM equipment and HFC network between IP-based backbone network and STB, the uplink data that STB sends to IP-based backbone network utilizes IP network channel, and IP-based backbone network sends The downlink data sent by the STB utilizes the radio frequency channel of the HFC network.

[0073] With reference to Fig. 1, Fig. 1 is the structural block diagram of the VOD network according to an embodiment of the present invention, and this VOD network 100 comprises:

[0074] IP-based backbone network 102;

[0075] Edge streaming service engine 104 and edge streaming service engine cache 105 are connected to IP-based backbone netw...

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Abstract

The invention discloses a video-on-demand network, which employs QAM equipment and HFC network between an IP-based backbone network and a set-top box (STB). The STB sends uplink data to the IP-based backbone network via an IP network channel, and the IP-based backbone network sends down-link data to the STB via a radio-frequency channel of the HFC network. The invention also discloses a video-on-demand method. With the inventive technical proposal, the HFC network based on radio frequency (RF) data transmission can transmit down-link data with large data volume via the radio frequency with relatively-larger bandwidth resource, to solve the congestion problem of the down-link data. Contrarily, the up-link data with smaller data volume are transmitted based on the IP protocol. The invention avoids the large-scale reconstruction of the existing network, saves the cost, and can efficiently improve the use experience of the user.

Description

technical field [0001] The present invention relates to the field of video-on-demand network technology, and more specifically, relates to a video-on-demand network and an on-demand method that utilizes QAM equipment and an HFC network and separates uplink data from downlink data. Background technique [0002] Video-on-demand is an emerging industry with broad market prospects. At present, the commonly used video-on-demand network is an IP-based video-on-demand network. Uplink and downlink data are transmitted on the IP network using the IP protocol. Due to the huge amount of video signal information, it takes up a lot of transmission bandwidth, which often causes network congestion. In particular, when a large number of users perform on-demand video at the same time, the downlink data often becomes slow due to insufficient bandwidth. If the existing network is transformed, it will cost a lot of money. [0003] Further analysis of the service traffic of the video-on-demand ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/173H04L29/06H04N21/60
Inventor 钱明唐中兴张兴明周鉴刚颜新波
Owner 西安思华信息技术有限公司
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