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Method and apparatus for reducing network television multicast cutoff time

A network TV and multicast technology, applied in branch offices providing special services, TV, data switching networks, etc., can solve problems such as drop, IPTV multicast stream interruption, black screen, etc.

Active Publication Date: 2009-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Telecom operators conduct unified maintenance and management of home access gateways, including issuing electronic work orders and upgrading software versions. If the IPTV multicast stream between the ingress device and the IGMP multicast source is interrupted, this will cause adverse effects such as screen freezes and black screens to users who are watching IPTV real-time broadcast, resulting in poor user experience and poor IPTV system quality of service (QoS , Quality of Service) decline

Method used

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  • Method and apparatus for reducing network television multicast cutoff time
  • Method and apparatus for reducing network television multicast cutoff time
  • Method and apparatus for reducing network television multicast cutoff time

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Embodiment Construction

[0023] The basic idea of ​​the present invention is: by setting the IGMP Query command in the home access gateway, when the home access gateway is restarted, it is detected that the network port connected to the access device side is started, and then the IGMP query command is sent to the access device such as a set-top box, The access device replies to the received IGMP Query command, and the home access gateway determines the rebroadcast table from the home access gateway to the access device according to the reply of the access device, and reports the rebroadcast table to the IGMP multicast source, and the IGMP multicast source Based on this, the rebroadcast table of the local home access gateway and its connected access devices is updated, and the IPTV multicast stream is forwarded to the connected access devices through the home access gateway. Since the rebroadcast table of the access device is determined after the network port connected to the access device is started, a...

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Abstract

The invention discloses a method for reducing the multicast breaking time of a network television. The method comprises the following steps: after the kernel of a home access gateway is restarted, whether a network port connected with access equipment is started or not is detected; when in starting, the network port sends a query command of the internet group management protocol to the access equipment; a multicast forward table from the home access gateway to the access equipment is established according to identifying information used for replying the access equipment of the internet group management protocol; and the multicast forward table is reported to a multicast source of the internet group management protocol. The invention discloses a device for implementing the method simultaneously. The invention can reduce the multicast breaking time of the network television, enhances the QoS of an IPTV system and has simple implementation.

Description

technical field [0001] The invention relates to a method and a device for processing an access device to access a network television network when a home gateway is restarted. Background technique [0002] The development of broadband provides good opportunities for digital multicast services for telecom network operators. Various business applications such as video, games, and e-commerce have become exciting due to broadband. In order to cater to this opportunity, telecom operators need to build an efficient broadband network value-added service platform, which can provide users with a simple and efficient bridge to receive services. Internet Protocol Television (IPTV, Internet Protocol Television) service, as a value-added service, already has a good market condition. figure 1 It is a schematic diagram of the composition structure of the IPTV system, such as figure 1 As shown, the IPTV system IGMP multicast source, central office access equipment, home access gateway, acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L29/06H04N7/24H04N7/173
CPCH04N21/64776H04N21/6473H04L12/185H04N7/17336H04L12/1863H04N21/24H04N21/6332H04N21/43615H04N21/44227H04N21/4432
Inventor 张俊剑王占利高建英
Owner ZTE CORP