Method and device for transmitting adjustable multicast multimedia service data

A technology for multimedia services and services, applied in the field of communication networks, can solve problems such as multicast multimedia services that are not actually applied, and achieve the effects of avoiding changes, controlling the cost of terminal equipment, and optimizing utilization.

Active Publication Date: 2008-12-24
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Unfortunately, the above-mentioned new video coding methods are not actually applied in the transmission of multicast multimedia services

Method used

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  • Method and device for transmitting adjustable multicast multimedia service data
  • Method and device for transmitting adjustable multicast multimedia service data
  • Method and device for transmitting adjustable multicast multimedia service data

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Embodiment Construction

[0024] In the present invention, the access device (such as, figure 1 In the shown DSLAM1, base station α and base station β), the control device / module provided by the second aspect of the present invention is introduced, called SVC (Subscriber Video Controller, user video controller), to realize the first aspect of the present invention. method.

[0025] figure 2 It is a flowchart of a system method for multicast multimedia service data transmission in a communication network according to a specific embodiment of the present invention. Refer to the following figure 1 , figure 2 The present invention will be described in combination with the first embodiment, where the access device is DSLAM1, and the user terminal is user terminal 2 (a PDA) in subnet A as an example. In this article, it is assumed that the user terminal 2 can only support a lower resolution, such as 480*320, due to its own volume and other factors.

[0026] To simplify the description, the program gui...

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Abstract

In the prior art, an access device provides multimedia multicast multimedia service data for a user terminal only based on the selection of a multicast group by the user terminal, so that a network service provider can not control the process. The invention provides a method for controlling the transmission of adjustable multicast multimedia service data to a user terminal in an access device in a communication network and a device thereof, as well as a corresponding method for receiving the multimedia service data in the user terminal and a device thereof. In the technical proposal provided in the invention, the access device selects a service flow with proper service attributes in accordance with the capacity information of the user terminal, the bandwidth of the user terminal and the bandwidth of the access device, thus enabling the network service provider to control the user's process of selecting the multicast group, as well as the optimal utilization of available network resources.

Description

technical field [0001] The invention relates to a communication network, in particular to a transmission method and a corresponding device for multicast multimedia service data in the communication network. Background technique [0002] In existing IPTV services, a single resolution and bandwidth requirement (eg, 1024*768, 1.5 Mbps) is widely used to encode and transmit multicast video signals. This solution is not only easy to manage, but also applicable to most current IPTV terminals, such as "TV + set-top box" or personal computer (PC). Each multicast multimedia service (also called a channel, channel) has a corresponding multicast group, and a user terminal requests to join this multicast group to receive corresponding video signals. [0003] In the network, compared with the multimedia service server, the access device (for example, DSLAM in the DSL network) is closer to the user terminal. Therefore, the multimedia service server usually pre-pushes (pre-push) multicas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/18H04L47/41
Inventor 马松伟鄢仁祥
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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