Space-based mobile communication system and communication method

A mobile communication system and communication system technology, applied in satellite communication system and communication, space-based mobile communication system and communication field, can solve the problem that iridium satellite system does not have on-board autonomous routing and switching capability, network architecture and communication method are not suitable for grouping The problems of transmitting data services and failing to meet the transmission requirements of multimedia integrated services can reduce dependencies, simplify functions, and reduce deployment.

Inactive Publication Date: 2007-09-19
BEIHANG UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0013] The Iridium system based on on-board circuit switching does not have on-board autonomous routing and switching capabilities. All communications in the system must first establish an end-to-end connection path, and the connection path establishment, maintenance, and removal functions are

Method used

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  • Space-based mobile communication system and communication method
  • Space-based mobile communication system and communication method
  • Space-based mobile communication system and communication method

Examples

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Example Embodiment

[0043] The satellite communication system of the present invention is a space-based mobile communication system, and the space-based mobile communication system is a wireless mobile communication system with a satellite communication node (that is, a satellite) as the core. As shown in Fig. 1 and Fig. 2, a schematic diagram of a network architecture and a schematic diagram of a module structure of the satellite communication system of the present invention are given. The system is composed of a user domain, a satellite access network, and a terrestrial core network.

[0044]The user domain is composed of all user terminal stations. The user terminal station establishes a wireless communication connection with the satellite through the user-satellite air interface to realize two-way data transmission between the user terminal station and the satellite. User terminal stations for different application scenarios have different characteristics, such as handheld mobile terminals (porta...

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Abstract

The invention discloses an air-base mobile communication system and method, comprises at least a user terminal station, a satellite access network which is consisted of a plurality of satellites and a ground core network which is consisted of a plurality of said gateways. The user terminal station is used for establishing a wireless communication connection with the satellite access network and realizes the bidirectional data transfer. The satellite access network is used for processing and forwarding the communication data between two user terminal stations or between the user terminal and the gateway station. A route and exchange processing module, which is arranged in the satellite, is used for establishing a communication path between the satellites in the satellite access network. The ground core network is used for controlling and managing the whole communication system. The steps of the method are as follow: network registration, service application and accessing control, establishing communication connection, communication connecting maintenance and communication connection disassembly. The invention makes the satellite communication system much less reliable to the ground nodes, reduces the deployment of the ground control station and simplifies the function of the ground control device.

Description

technical field [0001] The invention relates to a satellite communication system and a communication method, in particular to a space-based mobile communication system and a communication method based on a space-based system (a system with satellites as the core) and capable of autonomous routing exchange on the satellite. It belongs to the field of aerospace information. Background technique [0002] The space-based mobile communication system is based on a satellite network (space-based), and uses the excellent coverage characteristics of satellites to realize information access and transmission to mobile users in a large area (or the world). The space-based mobile communication system has the characteristics of wide coverage, flexible and rapid networking, and flexible information access. It has become an important part of the next generation of mobile communication (4G) and the national information highway. [0003] Different from the ground communication network, the s...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L12/56H04Q7/38H04Q7/36H04L12/26H04L12/28H04L12/70
Inventor 张军张涛秦勇
Owner BEIHANG UNIV
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