Voice transmission based on transmission control protocol

A transmission control protocol and voice transmission technology, applied in the field of communications, can solve problems affecting voice quality, packet loss and jitter, packet blocking, etc., to reduce the probability of voice interruption, improve reliability and practicability, eliminate The effect of data blocking

Inactive Publication Date: 2006-11-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the TCP protocol guarantees the order of the transmitted messages. The order of the messages received by the application at the receiving end must be consistent with that of the sending end. Before the previous message is successfully sent, the next message will be blocked.
[0008] Packet loss and jitter caused by network reasons are unavoidable
When using TCP to carry voice, if the confirmation message sent by the receiving en...

Method used

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  • Voice transmission based on transmission control protocol
  • Voice transmission based on transmission control protocol

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Embodiment Construction

[0020] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0021] When the TCP protocol carries the voice, network packet loss may cause long-term interruption of the voice. The loss of a single voice packet has almost negligible impact on voice information. For this reason the present invention proposes the following scheme to improve the voice quality of the voice information carried by the TCP mode:

[0022] Such as figure 2 Shown is the schematic diagram of the voice transmission principle based on the TCP connection of the present invention, at least two TCP connections are established for each voice channel between the sending end (terminal A in the figure) and the receiving end (terminal B in the figure) Take three TCP connections as an example for illustration), and at the same time, messages containing voice data are sent through each TCP connection interspersed according to certain rules (such as in t...

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Abstract

A sound transmission method based on transmitting control protocol, setup at least two connections of the transmitting control protocol between the sound send end and the receive end for the sound connection which based on the transmitting control protocol, and sends the message with sound data assign to every connection of the transmitting protocol according to rules; the receive end get the data wraps from every transmitting control protocol, keep and reorder them in the buffer to get the message list which same as the send end; the sound coding system of the receive end get and decode data from the buffer according to the scheduled period. The invention can overcome the shortage, and improve the reliability and practicability of the transmitting sound by TCP (transfer control protocol) connection and the quality of the voice.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a voice transmission method based on Transmission Control Protocol (TCP). Background technique [0002] With the rise of NGN (Next Generation Network), a large number of IP phones are used in enterprises or homes. The enterprise's own LAN system is generally connected to the Internet (Internet) through Proxy (proxy service) or firewall. In order to ensure the security of the enterprise LAN and avoid external attacks on the internal resources of the enterprise, a large number of enterprise firewalls only enable the HTTP (Hypertext Transfer Protocol) proxy, and other access methods are prohibited. In this case, in order to make VoIP (Voice over Internet Protocol, that is, IP phone) work normally, HTTP tunneling technology is generally used, that is, an HTTP tunnel is established between the VoIP terminal in the LAN and the tunnel server on the Internet. This tunnel can pass...

Claims

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Application Information

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IPC IPC(8): H04L12/851H04L29/06
Inventor 马剑飞
Owner HUAWEI TECH CO LTD
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