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Data communication system for real-time multicast service and method thereof

A technology of data communication system and multicast service, applied in the field of real-time multicast communication, to achieve the effect of optimizing efficiency and saving bandwidth resources

Inactive Publication Date: 2012-10-24
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the field of real-time multicast in the communication network, there is no solution that can automatically select the optimal error correction method according to the current multicast scenario to meet the reliability requirements of real-time multicast services under strict delays. Maximize the throughput performance of the network

Method used

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  • Data communication system for real-time multicast service and method thereof
  • Data communication system for real-time multicast service and method thereof
  • Data communication system for real-time multicast service and method thereof

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Embodiment Construction

[0049] Such as figure 1 As shown, the data communication system of the present invention includes a data sending end, a parameter setting unit, and a data receiving end; wherein, the data sending end includes a data grouping unit, a forward error correction coding unit, a sending unit, and a retransmission processing unit; the data receiving end It includes a receiving unit, a forward error correction decoding unit, a data parsing unit, and a retransmission requesting unit.

[0050] The parameter setting unit is used to set general error correction structure parameters according to the current situation of the real-time multicast system, and send them to the data grouping unit, the sending unit, the retransmission processing unit, the receiving unit, and the retransmission requesting unit respectively.

[0051] Among them, the sender will complete the following functions:

[0052] 1: The function of grouping and packaging real-time business data streams;

[0053] 2: The func...

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Abstract

The invention provides a data communication system for real-time multicast service, which comprises a data transmitting end, a parameter setting unit and a data receiving end, wherein the data transmitting end comprises a data grouping unit, a forward error correcting and coding unit, a transmitting unit and a retransmission processing unit; and the data receiving end comprises a receiving unit, a forward error correcting and decoding unit, a data analysis unit and a retransmission request unit. The invention also provides a data communication method for the real-time multicast service, which comprises the following steps of: self-adaptively setting a general error correction structure optimal parameter; transmitting a data package for the first time and processing a retransmission request message by the transmitting end; and in a processing step, receiving the data package by the receiving end. According to the data communication system and method for the real-time multicast service, the general error correction structure optimal parameter is set in a self-adaptive way, limited bandwidth resource in the communication network can be effectively utilized, and an end-to-end target reliability requirement of the real-time service under the strict time delay limiting condition can be satisfied.

Description

Technical field: [0001] The invention relates to the field of real-time multicast communication in a communication network, and proposes a data communication system for real-time multicast services and a method for ensuring end-to-end reliability of real-time multicast services. Background technique: [0002] Multicast is one of the three basic destination address types of IPv6 data packets. Multicast is point-to-multipoint communication. IPv6 does not use the multicast term in IPv4, but regards broadcast as a special example of multicast. [0003] IP multicast (also known as multicast or multicast) technology is a TCP / IP network that allows one or more hosts (multicast source) to send a single data packet to multiple hosts (once, simultaneously) technology. As a point-to-multipoint communication, multicast is one of the effective ways to save network bandwidth. In the application of network audio / video broadcasting, when it is necessary to transmit the signal of one node ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/00H04L1/18
Inventor 谭国平
Owner HOHAI UNIV
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