Satellite communication system channel reuse method

A satellite communication system and channel multiplexing technology, which is applied in transmission systems, digital transmission systems, multiplexing communications, etc., can solve problems such as the inability to realize channel multiplexing, and achieve the effect of improving the utilization rate of channel resources

Inactive Publication Date: 2015-10-21
SYNERTONE COMM TECH CO LTD
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Problems solved by technology

[0003] The current satellite communication system only implements multiple burst business time-division multiplexing channels, but for multiple continuous business concurrent or continuous business and burst business concurrent, only the method of increasing the channel or increasing the channel bandwidth can ensure the concurrent transmission rate of business , it is impossible to realize channel multiplexing of multiple continuous services, continuous services and burst services concurrently

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments of the present invention.

[0017] The method for channel multiplexing of the satellite communication system of the present invention,

[0018] Two-way signal transmission I-way and Q-way: The information rate of the continuous signal frame is constant, and the I-way sends a continuous signal frame per second. The continuous signal frame structure includes frame header, information frame, Q-way parameter frame and check frame; frame header It is used to indicate the beginning of each frame; the information frame contains effective signal information, and the extra symbols send a special sequence such as "1010"; since the information rate of the Q channel signal is variable, the signal modulation requires the information rate of the I channel and the Q channel, so it is required The Q-channel parameter frame is included in the I-channel signal frame t...

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Abstract

The invention provides a satellite communication system channel reuse method. Two signal transmission paths, which are respectively an I path and a Q path, are provided; the I path sends one continuous signal frame in each second, and the continuous signal frame structure comprises a frame head, an information frame, a Q path parameter frame and a verification frame; a Q path information rate is determined by the Q path parameter frame in the I path, and a Q path signal frame structure comprises a frame head, a signal frame, a frame type and an ending frame; and after carrier wave modulation is carried out on digital signals of the I path and the Q path, merging emission is performed. According to the invention, the characteristics of in-phase orthogonal modulation are utilized, the signals of the I path and the Q path respectively transmit two paths of data, and a continuous business concurrent reuse channel or a continuous business and burst business concurrent reuse channel is realized; in addition, if the continuous business and the burst business are concurrent, the burst mode is adopted by the signals of one path, the path is of a time division multiplexing type, and other information can be burst, so that the utilization rate of channel resources is further improved.

Description

【Technical field】 [0001] The invention relates to the field of satellite communication, in particular to a channel multiplexing method for a satellite communication system. 【Background technique】 [0002] The invention relates to a satellite communication system, through which the signal transmission is completed. Among them, the services that need to occupy channel resources for a long time or even permanently in the satellite communication system are defined as continuous services, such as voice services, large text transmission services, and synchronous signaling between the satellite master station and the user station. The business that needs to occupy the channel resources for a short time is defined as a burst business, such as short message and channel application message. [0003] The current satellite communication system only implements multiple burst business time-division multiplexing channels, but for multiple continuous business concurrent or continuous busin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16H04L5/00
Inventor 王浙安何家富樊鹏程郭文伟张风舞
Owner SYNERTONE COMM TECH CO LTD
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