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A message sending control method based on service and satellite channel characteristics

A satellite channel and message sending technology, which is applied in digital transmission systems, data exchange networks, electrical components, etc., can solve the problems that engineering cannot be realized, stay in theoretical research, and do not consider the characteristics of data link business, etc., to achieve efficient and reliable transmission, The effect of avoiding channel congestion and improving support capabilities

Active Publication Date: 2021-02-02
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

In response to this processing capability requirement, although some scholars have proposed various solutions, there are still some shortcomings: first, some methods do not consider the business characteristics of the data link, and do not perform differentiated processing; second, in the message The quality of the satellite channel link is considered in the transmission control, but the transmission control strategy has not been studied from multiple dimensions such as network status, resource utilization, and Qos guarantee; then, some methods are still in the theoretical research stage and cannot be realized in engineering; finally, about multi-dimensional A heterogeneous satellite channel message transmission control method has not yet been found

Method used

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  • A message sending control method based on service and satellite channel characteristics
  • A message sending control method based on service and satellite channel characteristics
  • A message sending control method based on service and satellite channel characteristics

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0015] Concrete technical scheme of the present invention comprises the following steps:

[0016] (1) Message flow processing

[0017] Read the channel type and number from the planning file. First, each channel establishes three priority queues: high, medium, and low. Secondly, a channel-to-integer mapping relationship is established according to the channel rate. Suppose there are two channels, and the rate of channel one is N times that of channel two (N is greater than or equal to 1), then the integer value corresponding to channel one is N times that of channel two, and the integer value interval corresponding to the channel is [1,M], M=N+1. When a new message arrives, generate a random number that obeys the uniform distribution, and query the channel and random int...

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Abstract

The present invention provides a message sending control method based on service and satellite channel characteristics, which performs differentiated processing on data link services and satellite channels of different rates, and comprehensively utilizes available information such as satellite channel link status and network status, effectively avoiding Channel congestion ensures efficient and reliable service delivery. The invention first decides to add messages to different queues according to channel quantity, rate and service characteristics, and updates and maintains the message queues in real time. Secondly, take out the data to be sent according to the principle of first high, then middle, then low, and uniform access. Finally, the status of each channel is evaluated, and the message sending channel is determined comprehensively. The message transmission control method that comprehensively utilizes the service characteristics and the multi-attributes of the satellite channel proposed by the invention can effectively meet the matching requirements of the data link service and the satellite channel. In addition, the method proposed by the present invention has been applied in actual engineering, and the performance meets the research and development requirements.

Description

technical field [0001] The invention relates to the technical field of space-based data link information processing, in particular to a message sending control method based on service and channel characteristics in a multi-satellite link. Background technique [0002] Space-based data link information processing is to process, classify and convert data link information, comprehensively utilize various satellite channel resources, effectively combine data link and satellite, and realize data link message distribution control, message protocol and satellite channel adaptation , to meet the space-based data link information processing needs, and enhance the ability of satellite-ground integrated operations. [0003] Space-based data link message transmission control not only needs to consider the reliability and timeliness requirements of data link business messages, but also considers satellite channel characteristics and full utilization of resources. In response to this pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L12/863H04L12/865H04L47/6275
CPCH04L47/12H04L47/6235H04L47/6275
Inventor 刘晓锋崔宗星姚丹王甲鲁邹晨
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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