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A method suitable for high-delay low-bandwidth satellite communication small-data-volume transmission

A satellite communication and transmission method technology, which is applied in the field of satellite communication, can solve problems such as easy channel blockage, large delay, and transmission impact, and achieve the effects of ensuring reliability and integrity, preventing long-term blocking, and reducing the number of interactions

Active Publication Date: 2019-06-25
南京控维通信科技有限公司
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Problems solved by technology

Therefore, during the entire communication transmission process, we have been encountering bit errors caused by noise, which reduces the throughput of the entire channel; secondly, the number of satellites is small and the resources are limited, resulting in extremely limited resources that can be used. In general, The bandwidth is relatively low; in addition, due to the long distance and long delay, the receiver does not receive a response within a short period of time, and mistakenly thinks that the data has been lost (it may have actually been sent to the destination), which will affect the transmission
In summary, the disadvantages of the existing technology are low resource utilization and easy channel blockage.

Method used

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  • A method suitable for high-delay low-bandwidth satellite communication small-data-volume transmission
  • A method suitable for high-delay low-bandwidth satellite communication small-data-volume transmission
  • A method suitable for high-delay low-bandwidth satellite communication small-data-volume transmission

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Embodiment Construction

[0015] The present invention is a data transmission method specially designed for satellite communication, mainly used for transmitting data with a small amount of data, aiming at the problems of high delay, low bandwidth and packet loss caused by channel instability during satellite communication, etc. Common problems have been dealt with, while saving satellite channel resources and improving data transmission efficiency.

[0016] In the following, "data packet" refers to a complete package of data, such as the complete data of a picture; "data fragmentation" refers to the fragmentation of a data packet, such as a part of the data of a picture; "valid data" refers to the data that needs to be transmitted Valid data; "Data Response" refers to invalid data, which is only used to assist in the transmission of valid data. Data Response is a data packet with only one data fragment; Fragment identification; "cumulative confirmation" refers to the identification of whether the data...

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Abstract

The invention discloses a small data volume transmission method suitable for high-delay low-bandwidth satellite communication. In the satellite communication process, on one hand, when the bandwidth is low, the sending amount of the sending end is controlled, and it is ensured that the channel is not blocked; and on the other hand, the number of sending packets of the sending end and retransmission and missing packet resending are controlled, so that the utilization rate of the whole satellite channel is improved, and meanwhile, the data transmission efficiency is also improved.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a satellite communication method for transmitting data under the condition of high time delay and low bandwidth of the satellite channel. Background technique [0002] The current satellite communication technology is a kind of wireless communication technology, and noise is an inevitable problem. Therefore, during the entire communication transmission process, we have been encountering bit errors caused by noise, which reduces the throughput of the entire channel; secondly, the number of satellites is small and the resources are limited, resulting in extremely limited resources that can be used. In general, The bandwidth is relatively low; in addition, due to the long distance and long delay, the receiver does not receive a response within a short period of time, and mistakenly thinks that the data has been lost (it may have actually been sent to the destination)...

Claims

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Application Information

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IPC IPC(8): H04W28/06H04B7/185H04L1/16H04L1/18H04L29/06
Inventor 魏武裴道鹰何瑞石锋汤善东曾晓光郑成辉赖海光
Owner 南京控维通信科技有限公司
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