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System and method for achieving business data multicast

A technology of data group and service, applied in branch offices to provide special service devices, data exchange details, telephone communication, etc.

Active Publication Date: 2010-02-10
ZHENGZHOU SEANET TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, in the two-way transformation of the cable TV HFC network, the cable TV HFC network usually has two-way (IP) channels and one-way (such as DVB-C) channels coexisting. How to use the natural broadcast channel of the HFC network to realize the transmission and reception of multicast data methods and systems have not yet been reported

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  • System and method for achieving business data multicast

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Embodiment Construction

[0075] The present invention proposes a system and method for realizing business data multicast, using the conversion function of IPQAM equipment from IP to radio frequency, and using a resource management module (RMS, Resource Management System) to uniformly manage multicast data channel resources, manage terminal users to join and Exit the multicast data channel, realize the dynamic establishment and recovery of the multicast data channel, and provide the multicast function of service data on the one-way channel of the cable TV HFC network for the business based on the IP network. In particular, the method can provide an effective implementation method for cross-domain live broadcast of digital TV.

[0076] The system and method proposed by the invention relate to entities such as business service module, resource management module (RMS), IPQAM and user terminal.

[0077]Among them, the multicast business data is provided by the business service module, and the business serv...

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Abstract

The invention relates to a system and a method for achieving business data multicast. The system comprises a business service module, a resource management module, an IPQAM and user terminals. The method adopted by the system comprises the following steps: using an IP address of the IPQAM for receiving a data stream as a multicast channel address; sending multicast business data to the IPQAM in amode of IP data packets by an IP network; and multiplexing and modulating the multicast business data by the IPQAM before sending the multicast business data to the multicast user terminals. The resource management module unitedly manages multicast channel resources and terminal users to join in or withdraw from a multicast channel and dynamically establishes and withdraws the multicast channel. The invention utilizes a broadcast channel of an HFC network to send and receive multicast data and can provide the span-domain live broadcast of digital televisions with an effective implementation method.

Description

technical field [0001] The invention relates to the field of wired communication, in particular to a method for realizing multicasting of service data on a cable television HFC network. Background technique [0002] In IP communication, IP multicast technology effectively solves the problem of single-point transmission and multi-point reception, and realizes efficient point-to-multipoint data transmission in the IP network, which can greatly save network bandwidth and reduce network load. Since IP multicast was proposed in 1988, fruitful research has been carried out in address allocation, group member management, multicast message forwarding, routing establishment, reliability and many other aspects, and some relatively mature protocols and methods have been formed. For example, IGMPv2 is commonly used for group member management; PIM-SM is the preferred protocol for intra-domain multicast routing; and the combination of PIM-SM / MBGP / MSDP is generally used for inter-domain r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04M7/12
Inventor 王劲林邓浩江王玲芳倪宏刘学谢铁兵
Owner ZHENGZHOU SEANET TECH CO LTD
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