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Data transmission and receiving methods, equipment and systems

A technology of a data sending method and a data receiving method, applied in the field of network communication, can solve the problems of wasting and time-consuming network resources, and achieve the effects of quickly completing communication, saving network resources, and achieving transparency.

Active Publication Date: 2014-07-23
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for the two sides of the communication, there are many other communication needs, such as the transmission of shared documents, etc. At this time, it is necessary to establish a new channel based on other protocols, such as the File Transfer Protocol (FTP), to transfer files. Both parties in the communication need to go through the process of authentication and authentication again, resulting in a waste of network resources and a serious time-consuming

Method used

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  • Data transmission and receiving methods, equipment and systems
  • Data transmission and receiving methods, equipment and systems
  • Data transmission and receiving methods, equipment and systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 It is a schematic flowchart of a data sending method according to Embodiment 1 of the present invention. Such as figure 1 As shown, the data sending method includes the following steps:

[0030] Step S101, the sender encapsulates the data to be sent to the receiver and the virtual IP address of the sender as the payload of the RTP message, and adds the header of the RTP message before the payload; wherein the header carries the type identifier of the payload;

[0031] Step S102, the sending party sends the RTP message to the receiving party through the RTP channel negotiated between the sending party and the receiving party in the process of establishing a SIP call through its own virtual network card; so that the The receiver parses the header of the RTP message, parses the payload according to the type identifier of the payload in the header, and if it is known through parsing that the payload carries the virtual IP address of the sender, then Writing the...

Embodiment 2

[0052] Figure 4 It is a schematic structural diagram of a sending device according to Embodiment 2 of the present invention. Such as figure 2 As shown, the sending equipment includes:

[0053] The encapsulation module 21 is used for encapsulating the data to be sent to the receiving device and the virtual IP address of the sending device as the load of the RTP message, and adding the header of the RTP message before the load; wherein, in the header Carrying the type identifier of the payload;

[0054] The sending module 22 is used to send the RTP message to the receiving device through the RTP channel negotiated between the sending device and the receiving device in the process of establishing a SIP call through its own virtual network card; so that the receiving device The device parses the header of the RTP message, parses the payload according to the type identifier of the payload in the header, and if it is known through parsing that the payload carries the virtual IP...

Embodiment 3

[0062] Figure 5 It is a schematic flowchart of the data receiving method according to Embodiment 3 of the present invention. Such as Figure 5 As shown, the data receiving method includes:

[0063] Step S301, the receiver parses the header of the RTP message received from the sender, and parses the payload according to the type identifier of the payload in the header; wherein, the header carries the type identifier of the payload , the payload carries the virtual IP address of the sender and data to be sent to the receiver;

[0064] Step S302, if the receiver knows that the payload carries the virtual IP address of the sender through analysis, write the data obtained through analysis into its own virtual network card to complete the data reception.

[0065] According to the data receiving method of the above-mentioned embodiment, for the communication parties in the ongoing SIP session, if the sender has other types of data transmission other than voice / video, then the pay...

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PUM

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Abstract

The invention provides a data transmission method, a data receiving method, data transmission equipment, data receiving equipment, a data transmission system and a data receiving system. The data transmission method comprises that: a transmitter encapsulates data to be transmitted and a virtual Internet protocol (IP) address of the transmitter into a load of a real-time transport protocol (RTP) message, and adds a header of the RTP message, wherein the header carries a type identifier of the load; the transmitter transmits the RTP message to a receiver through an RTP channel between the transmitter and the receiver by own virtual network card; the receiver receives and resolves the RTP message and performs corresponding resolution on the load of the RTP message according to the type identifier of the load; and if learning that the load carries the virtual IP address of the transmitter, the receiver transmits the data to a virtual network card of the receiver and receives the data by the virtual network card. By the data transmission and receiving methods, equipment and systems, other types of data except audio data and video data can be transmitted without the basis of any other protocol in a session initiation protocol (SIP) session process.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a data sending and receiving method, device and system. Background technique [0002] Real-time Transport Protocol (RTP), as the technical basis of multimedia Internet Protocol (IP), has been widely used in streaming media systems, video conferencing and push-to-talk systems. [0003] In the prior art, the communication parties who want to perform voice or video communication usually use the Session Initiation Protocol (Session Initiation Protocol, SIP) to establish a session between the two parties, and negotiate the address and port of the RTP media channel during the establishment of the SIP session . During the communication process, the two parties transmit multimedia information such as voice or video through the negotiated RTP media channel, so as to realize voice communication or video communication between the two communicating parties. But for the two sides ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/12
Inventor 田新雪
Owner CHINA UNITED NETWORK COMM GRP CO LTD