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Broadcast data transmission method, device, device, and computer-readable storage medium

A technology of broadcast data and transmission method, applied in the field of broadcast data transmission and computer-readable storage media, can solve the problems of file recovery failure, unrecoverable blocks, and data loss rate exceeding, and achieve the effect of improving reliability.

Active Publication Date: 2022-06-28
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, for a single block, if the loss rate of the data received by the receiving end exceeds its redundancy rate, the block cannot be recovered, and the entire file cannot be recovered directly.
When the network is abnormal, the method of sending file block data in the above natural order will easily lead to the data loss rate of a certain file block exceeding its redundancy rate, resulting in the failure of the file block to be restored, and ultimately the failure of the entire file recovery
Therefore, the existing broadcast data transmission method based on the forward error correction function still needs to be optimized

Method used

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  • Broadcast data transmission method, device, device, and computer-readable storage medium

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Embodiment Construction

[0048] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0049]The main solution of the embodiment of the present invention is: dividing the original broadcast file to be sent into several file blocks; adding a corresponding forward error correction code to each divided file block, and the forward error correction code uses Perform forward error correction on the broadcast data of the original broadcast file at the broadcast receiving end; divide each file block into which the forward error correction code is added into N fragments, where N is a positive integer and N≧ 2; the broadcast data of the original broadcast file is divided into N data packets and sent to the broadcast receiver in turn, wherein each data packet is selected from each file block by a fragment and the selected fragment. obtained by encapsulation.

[0050] In the existing forward error correction...

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Abstract

The invention discloses a method for sending broadcast data, which includes: dividing an original broadcast file to be sent into several file blocks; adding a corresponding forward error correction code to each divided file block, and the former The forward error correction code is used by the broadcast receiving end to perform forward error correction on the broadcast data of the original broadcast file; each file block added with the forward error correction code is divided into N fragments, wherein N is Positive integer and N≧2; Divide the broadcast data of the original broadcast file into N data packets and send them to the broadcast receiver in turn, wherein each data packet is obtained by selecting a fragment from each file block and It is obtained by encapsulating the selected fragments. The invention also discloses a broadcast data sending device, equipment and a computer-readable storage medium. The invention can reduce the impact of network abnormality on the data loss of a single file block, and improve the reliability of broadcast data transmission.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method, apparatus, device, and computer-readable storage medium for transmitting broadcast data. Background technique [0002] The Flute protocol is a one-way file transfer protocol widely used in mobile multimedia broadcasting systems to support point-to-multipoint audio and video streams and one-way broadcasting of data files. The Flute protocol has a forward error correction (FEC) function. This function adds redundant error correction codes to the transmission code sequence. Under certain conditions, the receiving end can automatically correct the transmission errors by decoding. To a certain extent, the reliability of one-way data transmission is guaranteed. Due to the one-way propagation of broadcast data, the forward error correction capability of Flute protocol data is very important, which directly affects the user experience of the broadcast rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L67/06
CPCH04L1/0041H04L67/06
Inventor 谢颖
Owner ZTE CORP
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