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IP data packet packaging, sending and receiving method for wireless broadcast system

A technology of IP data packets and wireless broadcasting, which is applied in transmission systems, electrical components, etc., can solve problems such as no packet header identification, multiplexed data confusion, length field errors, etc., and achieve the effect of improving reliability and fault tolerance

Inactive Publication Date: 2009-05-06
ZTE CORP
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] However, there are two problems in directly multiplexing IP data packets into time slots for transmission on the channel: on the one hand, IP data packets are not fixed-length, and there is no header identification that is clearly different from the data part; , because the CMMB broadcast channel is a one-way wireless transmission channel, the wireless channel conditions are more complex, and there may be a higher bit error rate
Due to the above two problems, if an error occurs in the header part of an IP data packet during the transmission of the IP data packet, especially in the length field, it will cause all subsequent multiplexed data received by the terminal to be lost. Confused, may not be able to parse out subsequent IP packets
That is to say, the existing IP data packet encapsulation and multiplexing methods have the problems of low fault tolerance and poor reliability when directly transmitting on the wireless broadcast channel

Method used

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  • IP data packet packaging, sending and receiving method for wireless broadcast system
  • IP data packet packaging, sending and receiving method for wireless broadcast system
  • IP data packet packaging, sending and receiving method for wireless broadcast system

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Embodiment Construction

[0030] The basic idea of ​​the present invention is to encapsulate the IP data packet, add an IP multiplexing header containing a new identifier, and enhance the fault tolerance after the IP data packet is multiplexed by encoding and protecting the coding system information in the IP data packet performance.

[0031] The present invention will be described in detail below with reference to the drawings and embodiments.

[0032] figure 2 It is a structural schematic diagram of an IP multiplexing packet obtained according to an IP data packet encapsulation method on a wireless broadcast channel in an embodiment of the present invention.

[0033] Such as figure 2 As shown, an IP multiplexing header is added before the original IP data packet (IP Packet). The IP multiplexing header includes: an IP multiplexing packet identifier (identifier for short), and IP packet encoding information.

[0034] The length of the IP multiplexing packet identifier is greater than or equal to ...

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Abstract

The invention relates to an IP data packet package, transmission and receiving method of radio broadcasting system. The transmission method comprises following steps: The transmission terminal of radio broadcasting system acquires coding system information from IP data packet to be sent, generates IP multiplexing head according to the coding information, transmits the IP data packet to be transmitted through channel of radio broadcasting system after the IP multiplexing head. The inventive IP data packet package, transmission and receiving method can promotes transmission reliability and error tolerance of IP data packet in radio broadcasting system.

Description

technical field [0001] The invention relates to a method for encapsulating, sending and receiving an IP (Internet Protocol, Internet Protocol) data packet, in particular to a method for encapsulating, sending and receiving an IP data packet in a wireless broadcasting system with a unidirectional data transmission channel. Background technique [0002] In recent years, digital wireless mobile multimedia broadcasting technologies and standards have developed rapidly, such as DVB-H (Digital Video Broadcast Handheld, digital video broadcasting handheld reception) in Europe, and MediaFLO (Media Forward Link Only, media single forward link) in the United States. And China's CMMB (China Mobile Multimedia Broadcasting, mobile multimedia broadcasting) and so on. [0003] The mobile multimedia broadcasting system can provide video and audio services for mobile terminal users, and can also provide a variety of data broadcasting services, such as video clip files based on file download ...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 江华王标方源立朱晓光晏祥彪
Owner ZTE CORP
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