Satellite-ground integrated mobile communication system

Abstract

The invention discloses a satellite-ground integrated mobile communication system comprising an integrated gateway station, at least one integrated wireless access point and at least one satellite, wherein the integrated gateway station and the integrated wireless access points are connected to each other, and the integrated wireless access points are connected with each other, thereby establishing a local network; the integrated gateway station is mutually connected with an external network via a satellite relay; the integrated gateway station is responsible for processing the communication in the local network and the communication between the local network and the external network; and the integrated wireless access points are responsible for processing the access of subscriber terminals having different wireless systems in the local network. By establishing the satellite-ground integrated mobile communication system, the invention can simplify the network structure, diversify the interfaces and facilitates the establishment. The satellite-ground integrated mobile communication supports the simultaneous access of subscriber terminals having different systems to the local network and simultaneously achieves the trans-network communication via the satellite relay. The invention satisfies the requirements for emergency, disaster relief and private communication network systemsand provides solutions for the achievement of communication systems in remote areas.

Description

technical field [0001] The invention relates to a radio communication system and method, in particular to a satellite-ground integrated mobile communication system supporting multi-standard wireless access in the fields of satellite communication and ground mobile communication. Background technique [0002] Satellite communication systems are generally divided into two categories: mobile satellite communication systems and fixed satellite communication systems. The mobile satellite communication system is used to meet the needs of mobile communication of user terminals. The user terminals in the system are small in size, similar to the user terminals of common land cellular mobile communication systems. Fixed satellite communication systems are used to communicate with multiple fixed user terminals. These user terminal antennas are usually installed outside the building or on the roof. [0003] In recent years, satellite communication systems have been greatly developed, ...

AI Technical Summary

Problems solved by technology

[0006] The terrestrial cellular mobile communication system can support mobile communication services in densely populated areas (such as densely populated towns) with low cost and large system capacity, but the disadvantage of the system is that it is impossible to seamlessly cover a country or region (Japan and the United States are considered to be "areas that will never be covered by cellular networks" accounting for 50% and 80% of the land area respectively), and the system relies on ground facilities, and the system may be paralyzed when encountering major natural disasters and other emergencies

This not only increases the limitations of the network, but also increases the complexity of the system, as well as the communication delay between terminals of different standards

This ground-based component is similar to a traditional terrestrial mobile communication network, and the system architecture is complex, so it is not suitable for rapid construction

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