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User data transmission method and system of satellite mobile communication system

A technology of satellite mobile communication and data transmission method, applied in the field of satellite communication, can solve problems such as excessive burden of user communication costs and degradation of satellite network performance, and achieve the effects of ensuring performance, more data content, and reducing use costs

Active Publication Date: 2018-03-30
CHENGDUSCEON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for transmitting user data in a satellite mobile communication system, which uses a satellite signaling channel to transmit user data, which can solve the problem of satellite network performance degradation and heavy burden of user communication costs caused by frequent sending of tracking data The problem

Method used

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  • User data transmission method and system of satellite mobile communication system
  • User data transmission method and system of satellite mobile communication system
  • User data transmission method and system of satellite mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 2 As shown, the user data transmission system of the satellite mobile communication system includes satellites, satellite ground stations, ground monitoring terminals and mobile satellite communication terminals installed on ships, of which:

[0047] The satellite is used to provide a satellite communication network; the satellite ground station is used to transmit data between the mobile satellite communication terminal and the ground monitoring terminal, and is connected to the mobile satellite communication terminal through the satellite communication network; the ground monitoring terminal is used to receive tracking data and send The mobile satellite communication terminal sends control instructions, and the mobile satellite communication terminal is used to collect and send tracking data and receive and execute control instructions.

[0048] The ground monitoring terminal includes:

[0049] The tracking data receiving module is used to receive tra...

Embodiment 2

[0076] On the basis of Embodiment 1, in step S3 of this embodiment, the tracking data is firstly compressed so that the length of the tracking data is equal to the length of the optional field in the signaling message, and then the compressed tracking data is It is filled into the signaling message, so that more data is transmitted in a single transmission.

[0077] In this embodiment, the tracking data including the current latitude and longitude information, speed, heading and other navigation information are packaged and compressed, so that the length of the tracking data is equal to the length of the optional field in the signaling message, and the data before the package is used below The length is 11 bytes (22 numbers), and the compressed data length is 10 bytes (20 numbers) as an example to provide a specific processing method for tracking data compression processing as follows:

[0078] Step S31: Convert the longitude and latitude representing the original position int...

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Abstract

The invention discloses a system and a method for user data transmission of a satellite mobile communication system. The method includes that a satellite mobile communication terminal fills trace data into signaling messages which are transmitted to a ground monitoring terminal through a satellite signaling channel. The system comprises a satellite, the ground monitoring terminal, a satellite earth station and the satellite mobile communication terminal. The ground monitoring terminal comprises a trace data receiving module, a data analysis module, a trace data display module and a control command sending module; the satellite mobile communication terminal comprises a trace data collector, a trace data packaging module, a trace data compression module, a signaling packaging module and a message transceiving module. The trace data packaging module is used for packaging the acquired trace data; the trace data compression module is used for compressing the packaged data; the signaling packaging module is used for filling the compressed trace data into the signaling messages; the message transceiving module is used for sending the trace data and control commands. The system and the method for user data transmission of the satellite mobile communication system have the advantages that occupancy of traffic channels is avoided, adoption of a charge system of a network operator is avoided as well, and a remote tracking function is realized.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method and system for transmitting user data of a satellite mobile communication system. Background technique [0002] Satellite communication is the product of modern communication. Its main function is to fill the areas that cannot be covered by existing communication (wired communication, wireless communication) terminals, and provide more comprehensive services for people's work. [0003] In recent years, with the increasing status of shipping in transportation and the resulting needs of shipping safety and shipping management, the ship tracking and monitoring system has become the focus of people's attention. The real-time tracking of ships is an important part of the ship monitoring system. In the offshore, the coast station can communicate with the land, but in the vast ocean, the coast station loses its function. At this time, it can only rely on satell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
Inventor 谢永锋佟力刘小林严国荣吴仡
Owner CHENGDUSCEON TECH
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