Multi-network convergence transmission system and transmission method based on QoS

A technology of multi-network fusion and transmission method, applied in QoS-based multi-network fusion transmission system and transmission field

Active Publication Date: 2021-07-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Aiming at the problems existing in the existing wireless multi-network fusion UDP tunnel transmission techn

Method used

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  • Multi-network convergence transmission system and transmission method based on QoS
  • Multi-network convergence transmission system and transmission method based on QoS

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Experimental program
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Embodiment 1

[0089] Aiming at the problems existing in the wireless multi-network fusion UDP tunnel transmission technology, the present invention adopts MPTCP and UDP dual tunnels as the tunnel transmission technology between the integrated terminal and the aggregation server. In order to achieve sequential delivery and retransmission of multi-link IP service convergence transmission, in addition to the LLC over IP tunnel technology that uses UDP protocol as the multi-link ARQ mechanism of tunnel encapsulation to achieve retransmission in the previous analysis, another technical route is to use The MPTCP protocol is used as a technology for tunnel encapsulation.

[0090] 1. Classification of business types

[0091] With the diversification and rapid growth of Internet business, ensuring the quality of information transmission has become a problem that cannot be ignored. Different types of services have different characteristics. Real-time video and voice services are very sensitive to tr...

Embodiment 2

[0118] 1. The specific implementation environment is as follows figure 2 shown.

[0119] 2. The process of detailed processing

[0120] 1) There are multiple links between the sender and the receiver. The current environment is implemented using three links, here are link 1, link 2 and link 3, and the delay of each link and bandwidth are different.

[0121] 2) The integrated terminal establishes two multi-link transmission tunnels with the convergence server after startup, one is the MPTCP multi-link transmission tunnel, the other is the UDP multi-link transmission tunnel, and starts the connection tracking of the three links of MPTCP The table stores the tunnel-encapsulated TCP data frames sent via each link.

[0122] 3) The integrated terminal sends detection request packets from the three links to the aggregation server, and records the sending time, and the aggregation server replies immediately after receiving it, and the integrated terminal can calculate the RRT time...

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Abstract

The invention belongs to the technical field of multi-network convergence transmission, and discloses a multi-network convergence transmission system and transmission method based on QoS. The method comprises the following steps: classifying service types; scheduling a service queue; carrying out MPTCP retransmission proxy optimization; realizing multicast on-demand scheduling; realizing multilink multicast retransmission; and carrying out multicast ARQ and retransmission design. In a multi-link environment, the TCP service performance of a terminal user is improved, a service flow-based scheduling method and a multicast self-adaptive scheduling method are designed, and the high-quality requirement of the terminal user on network application is met; an MPTCP transmission mechanism is applied to wireless multi-network convergence, an MPTCP multi-path transmission protocol is used as a tunnel packaging mode between an integrated terminal and a convergence server, the multi-link cooperative scheduling capacity is achieved through congestion control and flow control of the MPTCP, the overall throughput of a TCP service system is improved, and the data transmission reliability is enhanced.

Description

technical field [0001] The invention belongs to the technical field of multi-network fusion transmission, and in particular relates to a QoS-based multi-network fusion transmission system and transmission method. Background technique [0002] At present, in the existing wireless multi-network converged transmission technology field, there are multiple wireless links between the integrated terminal and the back-end aggregation server. Using IP over multi-IP tunnel transmission technology, the unified bearing of IP service flow, when the two When one or more links between two devices fail, as long as there is at least one link between the two devices, the service connectivity between the user connected to the integrated terminal and the remote device can still be guaranteed, and the user IP The large bandwidth and reliable transmission of service flows ensure the robustness of user services. [0003] The current wireless multi-network converged transmission solution uses the ...

Claims

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Application Information

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IPC IPC(8): H04W28/24H04L1/16H04L1/18H04L12/46H04L29/06H04L29/12H04W28/10
CPCH04W28/24H04L1/1607H04L1/18H04L12/4633H04L61/103H04L69/16H04W28/10
Inventor 喻思远李嘉昕谢金浩
Owner WUHAN UNIV OF TECH
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