IP data packet encapsulating method and method for compressing packet head of data packet

A technology of IP data packet and encapsulation method, applied in data exchange network, digital transmission system, electrical components, etc., can solve the problem of low efficiency of IP data packet, improve channel utilization, reduce system complexity, and improve transmission efficiency Effect

Active Publication Date: 2014-02-19
SHANGHAI NAT ENG RES CENT OF DIGITAL TELEVISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem that the present invention solves is that the efficiency of digital TV broadcast communication transmission IP data packet is not high

Method used

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  • IP data packet encapsulating method and method for compressing packet head of data packet
  • IP data packet encapsulating method and method for compressing packet head of data packet
  • IP data packet encapsulating method and method for compressing packet head of data packet

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Embodiment Construction

[0029] The inventors have found that the efficiency of transmitting IP data packets in digital TV broadcast communication in the prior art is not high.

[0030] In view of the above problems, the inventor provided a method for encapsulating IP data packets and a method for compressing headers of IP data packets in baseband frames after research, which improved channel utilization and transmission efficiency of IP data packets.

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 What is shown is a schematic flowchart of a specific implementation method of an IP data packet encapsulation method of the present invention. refer to figure 1 , the method for encapsulating the IP packet comprises the steps of:

[0033] Step S11: set the data type in the frame heade...

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Abstract

The invention provides an IP data packet encapsulating method and a method for compressing a packet head of an IP data packet. The IP data packet encapsulating method includes the first step of setting the data type as the IP data packet and setting the working mode of baseband frames in frame headers of the baseband frames, the second step of populating the IP data packet to be sent from the first byte of a data field of the current baseband frame, wherein the first byte is determined according to the length of the remaining IP data packet of the last baseband frame, and the third step of filling part of data in the IP data packet in the free space to completing encapsulating the current baseband frame if the free space of the current baseband frame is not enough to load one whole IP data packet. Through the IP data packet encapsulating method, the channel utilization rate and transmission efficiency of the IP data packet are improved.

Description

[0001] technical field [0002] The invention relates to digital television broadcasting, in particular to a method for encapsulating IP data packets and a header compression method for IP data packets. Background technique [0003] In existing digital TV broadcasts, various data including audio and video are encapsulated and transmitted in a transport stream (Transport Stream, TS) format. With the evolution of technology and the development of applications, data encapsulation and transmission centered on IP packets has been widely used, and it is an essential part of the next-generation digital TV broadcasting system. [0004] Usually, the method of transmitting IP data packets is: encapsulating the IP data packets into transport stream packets (ie, TS packets) through a specific protocol and then transmitting them. Since such a transmission method needs to divide long-length IP data packets multiple times to form shorter TS packets, the complexity of the system is increas...

Claims

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Application Information

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IPC IPC(8): H04L12/951H04L29/06H04L47/43
Inventor 张文军徐洪亮管云峰夏平建何大治
Owner SHANGHAI NAT ENG RES CENT OF DIGITAL TELEVISION
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