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Satellite onboard processing exchange system suitable for GEO satellite mobile communication system

A satellite mobile communication and switching system technology, applied in the field of on-board processing and switching systems, can solve problems such as high processing complexity and limited on-board resources

Inactive Publication Date: 2012-12-26
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on-board resources are strictly limited, and the processing complexity of 3G and 4G communication systems is relatively high. The current satellite payload is not enough to complete the full demodulation of all signals

Method used

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  • Satellite onboard processing exchange system suitable for GEO satellite mobile communication system
  • Satellite onboard processing exchange system suitable for GEO satellite mobile communication system
  • Satellite onboard processing exchange system suitable for GEO satellite mobile communication system

Examples

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example 1

[0069] Example 1: The embodiment of the present invention takes the on-board processing and switching structure of the GEO satellite communication system based on 3G technology as an example to illustrate the high-speed on-board processing and switching method of the GEO satellite proposed by the present invention.

[0070] Application background: GEO satellite mobile communication system consists of GEO satellite S-band satellite payload, central station (network management center, operation control center), gateway station and various user stations / terminals. The satellite employs a large deployable mesh antenna, producing 100 spot beams. Spot beams meet the needs of handheld terminals for higher G / T (figure of merit) and higher EIRP (equivalent isotropic radiated power).

[0071] Functional requirements for on-board exchange preprocessing:

[0072] (1) Support two working modes of digital transparency and on-board processing and switching;

[0073] (2) Complete the proces...

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Abstract

The invention relates to a satellite onboard processing exchange system suitable for a GEO satellite mobile communication system, which belongs to the technical field of satellite mobile communications. The invention is characterized by comprising a wave beam receiving unit, a feeding chain circuit transmitting unit, a received signal exchange unit, a fixed configuration signal receiving processing unit, a global signal receiving processing unit, a business processing unit, a fixed configuration signal transmitting processing unit, a global signal transmitting processing unit, a transmitted signal processing unit, a feeding chain circuit receiving unit, a satellite onboard control unit, a signal superimposer and a wave beam transmitting unit. The invention enables both sides in the network to complete processing on the satellite, thereby realizing one-hop communications; the internetwork business is transparently transmitted to a ground gateway for direct processing; and optimizing configuration of the resources processed on the satellite is carried out through dynamic configuration by utilizing an extensible nonsymmetrical satellite onboard exchange structure.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, in particular to an on-board processing and switching system in a satellite mobile communication system. Background technique [0002] Satellite mobile communication can achieve true global coverage and is an important part of the third generation mobile communication system. Especially in the special case of failure of ground communication means, satellite mobile communication has become the only choice, which was particularly prominent in the Wenchuan earthquake relief in 2008. Satellite mobile communications have played an irreplaceable and important role in major events such as Olympic communication support and the celebration of the 60th anniversary of the founding of the People's Republic of China. [0003] With the development of terrestrial networks, 3G and 4G technologies will become the main technical means of terrestrial communication networks. In order to seamlessly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W84/06
Inventor 晏坚王刚孙斌罗明胜曹志刚何元智刘序明
Owner TSINGHUA UNIV
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