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Network transmission method and communication system with raised cell transmitting reliability

A network transmission and reliability technology, applied in transmission systems, digital transmission systems, store-and-forward switching systems, etc., can solve the problems of increasing the complexity of cell switching, unable to guarantee consistent cell sequence, limitations, etc. The effect of high transmission efficiency, high link transmission efficiency and low transmission delay

Inactive Publication Date: 2003-01-08
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Absolute cell "first come first come guarantee" increases the complexity of cell switching and limits the adoption of some effective techniques
Obviously, the cell flow through different physical paths cannot guarantee a consistent sequence of cells, which means that the same virtual channel cannot be implemented by multiple physical channels, nor can it be dynamically switched between several physical channels

Method used

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  • Network transmission method and communication system with raised cell transmitting reliability
  • Network transmission method and communication system with raised cell transmitting reliability
  • Network transmission method and communication system with raised cell transmitting reliability

Examples

Experimental program
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Embodiment approach

[0031] An embodiment system of the present invention is shown in FIG. 1 , which includes user terminal hosts 11 and 13 , a network node switch 12 , and network transmission links 121 and 122 from the terminal hosts to the switches, and the terminal host 11 also includes a terminal application 111 inside and 113, the internal identification addresses 112 and 114 of the terminal application, and the host agent 115 of the terminal host 11. The terminal host 13 also includes the terminal applications 131 and 133, the internal identification addresses 132 and 134 of the terminal application, and the host of the terminal host 13. Proxy 135. The default signaling transport connection in the system always exists. This default signaling transport connection can be manually set by the administrator with reference to the ATM network.

[0032] Consider a session communication between terminal application 111 and terminal application 131 . Before communication, the terminal application r...

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PUM

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Abstract

The invention discloses the network transmission method for increasing the reliability for transferring cell as well as the communication realization system. The characters of the method and system are as follows. The method decomposes the virtual circuit number into the two parts of the link identification and the session identification explicity. Network seeks the route by using the link identification number only. The application of the terminal host computer and terminal uses the link identification number and the session identification to make the communication connection. The cell sequence number is set on the information head. The said number is increased by degrees in turn within a session connection and the session application sorts the reached cells based on the said cell sequence number. The transmission reliability can be further increased by the feedback retransmission.

Description

technical field [0001] The invention belongs to a network transmission method and a communication realization system thereof, in particular to a packet network transmission method and a communication realization system using cells as information transmission units. Background technique [0002] The Broadband Integrated Services Digital Network (BISDN) proposed by ITU-T (International Telecommunication Union Standardization Sector) is a representative of such a packet transmission network. BISDN is a high-speed, low-latency multiplexing and switching network that uses Asynchronous Transfer Mode (ATM) to provide residential and business users with a wide range of integrated services through a standard user network interface, while supporting voice, data and video applications. and other types of transmission applications. [0003] The ATM transmission network provides functions up to the ATM protocol layer. These functions are realized through the letter header. When transmit...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 陈相宁王京
Owner TSINGHUA UNIV
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