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Video on demand service device and method

A technology for video-on-demand and service devices, which is applied in the directions of image communication, selective content distribution, electrical components, etc., can solve the problem of not considering network resource consumption, etc., and achieve the effect of reducing resource consumption

Active Publication Date: 2014-04-09
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the use of caching technology reduces the delay experienced by users, this invention does not consider the problem of network resource consumption, that is, it does not choose a more resource-saving way to transmit video

Method used

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  • Video on demand service device and method
  • Video on demand service device and method

Examples

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Embodiment Construction

[0044] The specific implementation of the present invention will be described below by taking the whole process of responding to the user's request when the user requests the video-on-demand service as an example in conjunction with the accompanying drawings. It should be pointed out that in this example, VoD (Video-on-Demand, video on demand) service is taken as an example, but the device and method in the present invention are not limited to this service, and this method can also be applied to Any streaming media transmission service, user-on-demand service. In addition, in this example, the mechanism of realizing multicast and other transmissions in a mobile network (such as joining a base station) is used as an example to illustrate the implementation method, but if it is extended to a wired network or other systems that can realize multicast broadcasting, this The transfer method mentioned in the invention is still applicable. Finally, in this example, an application sce...

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Abstract

The invention provides a video on demand service device and method. The video on demand service device is connected with a user terminal and a base station network. The video on demand service device is characterized in that the device comprises a video prefix calculation sending module (205) and a sending mode decision module (207); the video prefix calculation sending module carries out calculation and selects a part in a video as a video prefix, sends a video prefix broadcast to a user terminal, receives a user request module (206), and receives a video play request of the user terminal; and the sending mode decision module decides whether to wait for collecting other user terminals which have the request to play the same video according to whether the video prefix is cached in the user terminal, and decides to use a multicast or unicast sending mode to transmit video data to the user terminal according to whether other user terminals which have the request to play the same video are collected in a certain period of time.

Description

technical field [0001] The present invention relates to an apparatus and method for providing video-on-demand services in a communication system. In particular, it relates to systems that use pre-caching and multicast technology for transmission. Background technique [0002] In recent years, with the rapid development of information and communication technology, traditional voice services have been gradually replaced by various data application services. Real-time video on demand is one of the most popular services, and its transmission technology has attracted more and more attention. Furthermore, how to reduce the transmission energy consumption of data services, especially multimedia services, while maintaining its service quality has always been the most concerned issue for operators and service providers. [0003] In the prior art, multicast has been widely cited as an energy-saving transmission method, such as 3GPP (3 rd Generation Partnership Project, MBMS (Multi...

Claims

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Application Information

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IPC IPC(8): H04N21/25H04N21/266H04N21/6405
Inventor 刘春光宝雅男王晓磊周胜牛志升
Owner HITACHI LTD
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