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Data transmission method based on forward error correction and short message sending device

A data transmission method and forward error correction technology are applied in the field of forward error correction-based data transmission methods and short message sending devices, which can solve problems such as data loss, and achieve the effects of improving efficiency and reliability.

Active Publication Date: 2022-04-12
ZHEJIANG GEESPACE TECH CO LTD +1
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  • Description
  • Claims
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Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a data transmission method based on forward error correction and a short message sending device, which can ensure that any packet loss in a group of data packets and redundant packets that does not exceed the redundancy rate can still be restored Messages, without the need for ARQ retransmission, to solve the problem of data loss in the one-way communication of the satellite Internet of Things

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  • Data transmission method based on forward error correction and short message sending device
  • Data transmission method based on forward error correction and short message sending device
  • Data transmission method based on forward error correction and short message sending device

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Embodiment Construction

[0023] In order to further set forth the technical means and effects that the present invention takes to achieve the intended purpose of the invention, the embodiments of the present invention are described in detail below, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the embodiments of the present invention. Through the description of specific embodiments, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, and the accompanying drawings are on...

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Abstract

The invention provides a forward error correction-based data transmission method and a short message sending device. The method comprises the following steps of: acquiring short message data to be sent; generating a forward error correction parameter according to the short message data; segmenting the short message data according to the forward error correction parameter to obtain at least one piece of new data; performing forward error correction coding operation on the new data to generate at least one piece of redundant data; adding forward error correction parameters to the heads of the new data and the at least one piece of redundant data, and performing multiple redundancy; and sending the short message data after forward error correction coding. According to the invention, the message can be restored even if any packet not exceeding the redundancy rate in a group of data packets and redundant packets is lost, an ARQ retransmission means is not needed, and the problem of data loss in one-way communication of the satellite Internet of Things is solved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a forward error correction-based data transmission method and a short message sending device. Background technique [0002] Short messages are one of the mainstream IoT communication technologies in satellite communication systems. At present, mainstream satellite communication systems such as Beidou system and Iridium system on the market provide short message communication technologies for the direction of the Internet of Things. Among them, Beidou system’s Short message communication can provide a success rate greater than 95%, and the sending frequency is generally once every 30 seconds, and the highest can reach once every second. The regional communication capability can reach 1750 bytes each time, and the global communication capability can reach 70 bytes each time. The short message global mobile transmission capability of the Iridium system can reach 340 bytes eac...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W4/14
Inventor 张英杰邱庆举王宏波
Owner ZHEJIANG GEESPACE TECH CO LTD
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