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Information transmission method, receiving processing method, front end and transceiving system

A technology of preprocessing and transmitting modules, applied in the field of transmitting information, can solve problems such as waste of bandwidth resources, frequency band occupied by analog TV, limited bandwidth, etc., and achieve the effect of improving success rate and effective utilization rate

Inactive Publication Date: 2011-07-27
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although it seems that these frequency resources are relatively sufficient for terrestrial digital TV, the existence of analog TV occupies a large number of frequency bands, so that cities currently deploying terrestrial digital TV generally only have one or two available frequency bands
[0007] 2. Serious waste of bandwidth
The low efficiency of digital TV coding technology, unreasonable data service broadcasting methods and other existing terrestrial digital TV frequency bandwidth resources are seriously wasted. In addition, the bit errors of one-way transmission and mobile reception have a serious impact on real-time data services. In the field of terrestrial digital TV, the bandwidth available for high value-added data services is very limited. How to improve the utilization efficiency of the frequency band is the key to the healthy development of terrestrial digital TV value-added services in the future.

Method used

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  • Information transmission method, receiving processing method, front end and transceiving system
  • Information transmission method, receiving processing method, front end and transceiving system
  • Information transmission method, receiving processing method, front end and transceiving system

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail:

[0044] like figure 1 As shown, a transceiver system includes: a digital TV front end 100, and a one-way transmission terminal 200 using a digital TV network.

[0045] combine figure 2 As shown, wherein, the digital TV front end 100 includes: a data source module 110, a data discrimination grouping module 120, a packet compression module 130, a RAID processing module 140, a cyclic redundancy check module 150, a dynamic bandwidth allocation module 160, and a transmitting Module 170.

[0046] The data to be transmitted provided by the data source module 110 is grouped into real-time data groups, regular data groups and real-time data groups by the data screening and grouping module 120, and after being processed by the packet compression module 130, the real-time data The data of the group is processed by the RAID processing module 140, and t...

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Abstract

The invention provides an information transmission method, a receiving processing method, a front end and a transceiving system. The information transmission method comprises: a step of grouping, in which data to be sent is grouped into a real-time data group and a conventional data group, and the grouped data is optimized respectively; a step of pre-processing, in which the data in the real-time data group is subjected to redundant array of independent disk (RAID) grouping, and the data in the conventional data group is unpacked; a step of dynamic bandwidth, in which a dynamic bandwidth allocation technology is adopted to adjust the sending speed of each group according to the grouping property of the data and data size, on the premise of not exceeding the limitation of a total bandwidth, so as to maintain a corresponding frequency for bandwidth utilization; and a step of data sending, in which a ground digital television front end transmits the data.

Description

technical field [0001] The invention relates to a method for transmitting information, a receiving and processing method, a digital TV network transmitting front end and a transceiver system, in particular to a method for utilizing a digital TV network to transmit information, a receiving and processing method, a digital TV network transmitting front end and a transmitting and receiving system. Background technique [0002] The terrestrial digital TV network has the characteristics of low investment, fast construction, and low energy consumption. It only needs a few transmitting stations to build a single-frequency network to cover most areas of the city. Communication technology for the broadcast of video programs. At the same time, terrestrial digital TV has the advantages of "extremely high downlink bandwidth" and "one point to unlimited". In addition to realizing cost-free expansion in wireless services, it also broadcasts public safety (food, hygiene), sends emergency n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2385H04N21/2318H04N7/26H04N21/647
Inventor 郭文秀刘岩冯冠平
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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