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Network multimedia data packet regularized method

A data packet and data technology, applied in the field of data communication, can solve the problems such as the inability of the conference TV system to achieve intercommunication, and the packet switching data is not suitable for dedicated line transmission.

Inactive Publication Date: 2008-03-12
ZTE CORP
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Problems solved by technology

[0003] Although the mainstream of the current data communication technology has turned to packet switching, in some important applications, such as government departments and the military, it is still common to use dedicated lines for information transmission. The transmission mode works, because the data information in the network transmission mode is transmitted in the form of packet data packets with different lengths, and the data information in the dedicated line transmission mode is transmitted in the form of a real-time transport protocol (RTP) data stream. , therefore, packet switching data is not suitable for transmission through dedicated lines in the form of circuit switching, so the existing network transmission and dedicated line transmission can not achieve intercommunication between these two types of video conferencing systems

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Embodiment Construction

[0045] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0046] The core idea of ​​the present invention is to improve the structure of the TS data packet, redefine the fourth byte in the header information of the TS data packet, and at the same time endow the corresponding bit of the byte with a new meaning to form a TS extension Data packets, in order to encapsulate packet data packets of unequal length into a standardized data form to form TS extended data packets with a fixed length of 188 bytes, which is convenient for sorting and transmitting multimedia data packets.

[0047] Figure 1 is a schematic diagram of the logical structure of the Transport Stream (TS) data packet. As shown in Figure 1, the data packet transmitted by the network is the TS data packet, which is composed of many different types of packets, and the size of these data packets is 188 B...

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Abstract

The present invention discloses a method for structuring the network multimedia data packet. Through performing the expansion and definition to the transmission stream (TS) data packet structure, the expanded TS packet structure is suitable for the transmission of the real-time transport protocol (RTP) data flow, namely the data suitable for network transmission is converted into the structured data being capable of on line special line transmission, thus to enable two conference television systems of the network transmission and the special line transmission interoperable.

Description

technical field [0001] The invention relates to data communication technology, in particular to a method for regularizing network multimedia data packets. Background technique [0002] At present, video conference systems can be divided into network transmission and dedicated line transmission according to different data transmission methods. Among them, the network transmission is based on the Internet Protocol (IP) network as the physical basis, and the information to be transmitted is transmitted in the data communication network in the form of packet data packets; and the dedicated line transmission usually uses a circuit with strong real-time performance, such as the European The standard elementary circuit (E1) and other circuits are physical media, and the information to be transmitted is transmitted in the communication network in the form of data stream. [0003] Although the mainstream of the current data communication technology has turned to packet switching, in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L12/70
Inventor 叶磊黄书平宋莲香
Owner ZTE CORP
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