Method for conveying IP packet in broadcast network

Abstract

The present invention provides an IP message transmission method of broadcasting network, which can be used for effectively completing IP-based business in the multi-media broadcasting network, such as browsing, games and so on. In the method, the Mac address, IP and UDP header, and IP data payload are packaged in an IP load; the Mac address indication and IP header compression indication are packaged in an IP block head; the IP block head, the IP load and the CRC are packaged in a data unit; the length and the type of each data unit are recorded in a data segment head; a plurality of data units are packaged in the data segment; the data segment and other data to be transmitted are packaged and transmitted in a business channel; the terminal extracts each data unit after receiving the data segment, according to the length of each data unit in the head; the IP, the UDP header and the IP payload are extracted from the data unit so as to acquire the IP message. The length of the Mac address can be changed; the IP header can be compressed for transmission, thus the transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of multimedia broadcasting or mobile TV, and in particular relates to a method for transmitting IP messages in a multimedia broadcasting network. Background technique [0002] Mobile multimedia broadcasting is a multimedia playback technology that has emerged in recent years. With a handheld terminal, you can watch TV while moving at high speed. The terminal receives the program list through the wireless protocol, and can select the channel it has the right to watch, so as to receive the multimedia data of the selected channel, so as to watch TV on the mobile terminal. [0003] The air data transmitted by the system is divided into different channels, and each channel includes three types: video, audio and data. The terminal can receive the relevant data, and realize the normal broadcasting of the TV through the player on the terminal. [0004] Transmitting data in the broadcast network can realize applic...

AI Technical Summary

Problems solved by technology

In the first method, since the size of the TS packet is fixed, one IP packet is divided into one or more TS packets for transmission, and the last TS packet cannot be completely used up, there is a large amount of filling information, and the transmission efficiency of the TS method is relatively low

The second method, because the IP multicast packet header has 28 bytes, and the existing technology does not consider how to compress the IP packet header, and Mac address, etc., so the overhead is relatively large

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