An emergency broadcasting service transmission method and device

A technology of emergency broadcast and transmission method, which is applied in the directions of broadcast service distribution, emergency/dangerous communication service, selection device, etc., can solve the problem of no emergency broadcast channel, etc., and achieve the effect of timely transmission

Inactive Publication Date: 2009-07-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing mobile multimedia broadcast specification, there is no separate emergency broadcast channel, and the emergency broadcast service can only be transmitted through the format of the control information table of multiplexing frame 0, such as Figure 4 shown

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  • An emergency broadcasting service transmission method and device
  • An emergency broadcasting service transmission method and device
  • An emergency broadcasting service transmission method and device

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Embodiment Construction

[0035] The present invention provides a method and device for sending emergency broadcast services implemented on digital mobile multimedia broadcasting, which divides multiple emergency broadcast messages into segments, and packages them together with identification number information into segment data blocks, and then separates different emergency broadcast messages The segment data blocks of the data block are interleaved into a data block message in units of blocks, and then the different message segment data blocks in the data block message are encapsulated together with the identification number information into control table data, and finally, the control table data of multiple emergency broadcast messages are added to multiplex frame 0 of CMMB and send it out.

[0036] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] Figure 5 It shows the emergency broadcasting s...

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Abstract

The invention provides a method for sending an emergency broadcast service, comprising the steps of: (a) segmenting a plurality of emergency broadcast messages into segments, and encapsulating each segment of data together with its identification number information into a segment data block; (b) dividing The segment data blocks of different emergency broadcast messages are interleaved into data block messages in units of blocks; (c) each segment data block in the data block messages is encapsulated into control table data; (d) the control table data is added to the CMMB complex Use frame 0 and send. The method provided by the invention can effectively avoid message blocking when multiple emergency broadcast messages need to be sent at the same time, thereby ensuring timely sending of emergency broadcast services.

Description

technical field [0001] The invention relates to the field of digital mobile communication, in particular to a method and device for realizing an emergency broadcast service on digital mobile multimedia broadcasting. Background technique [0002] In recent years, digital mobile multimedia broadcasting technologies and standards have developed rapidly, such as DVB-H (Digital Video Broadcast Handheld) in Europe, MediaFLO (Media Forward Link Only) in the United States and China Mobile Multimedia broadcasting CMMB (China Mobile Multimedia Broadcasting), etc., provides many services for its end users, such as advertisements, weather forecasts, news, sports programs, variety shows, multimedia radio dramas, movies and other programs, and users can choose mobile multimedia broadcasting according to their hobbies service program. [0003] In CMMB technology, time division multiplexing is used to send multimedia broadcast services. The duration of the broadcast channel frame is 1 seco...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04Q7/22H04L29/06H04W4/06H04L1/00H04N7/24H04W4/90
Inventor谢大雄方源立王标江华朱晓光
OwnerZTE CORP