Enhanced transmission method based on stratospheric quasi-static satellite base station

Abstract

The invention relates to coverage enhancement technology in the field of satellite communication, and discloses an information transmission method based on a stratospheric quasi-static satellite base station, which comprises steps: (1) the stratospheric quasi-static satellite base station is formed by a stratospheric floating system, a communication load system and an operation control system, has small movement relatively to the ground, and can be deployed according to needs over a region with a satellite signal coverage enhancement requirement for providing long-time stable transparent forwarding or communication forwarding treatment service for various satellite users; and (2) the stratospheric quasi-static satellite base station distributes communication resources according to user types and service types, provides in-base station transmission service for communication between users in the current base station coverage region, provides inter-base station transmission service for communication outside the base station coverage region, signals are relayed and transmitted by the satellite via the base station, and subsequent communication transmission is completed via the satellite. Space and cost advantages of the stratospheric quasi-static satellite base station are used for providing convenient and high-efficiency coverage enhancement ability for satellite communication.

Description

technical field [0001] The invention relates to coverage and capacity enhancement technology in the field of satellite communication, specifically a new method for enhancing traditional satellite communication coverage and system capacity by using stratospheric quasi-static satellite base stations. Background technique [0002] Because satellite communication is not restricted by geographical conditions, it has many advantages such as flexible application, wide coverage, large communication capacity, good transmission quality, convenient and rapid networking, and the ability to realize global seamless links. It is considered to be indispensable for the establishment of global personal communication less important means. With the continuous increase in the demand for satellite communication services, especially the rapid development of broadband multimedia services centered on data, the demand for high coverage, large capacity, and higher QoS guarantee capabilities has been p...

AI Technical Summary

Problems solved by technology

Although the capacity of satellite loads has been greatly improved today, due to the long service life of satellites (about 10 years), even if the most advanced chips and signal processing equipment are used in the design, they cannot keep up with the rapid development of new technologies on the ground. Dramatic increase in development and user demands

With the continuous improvement of satellite communication frequency band selection (initial UHF, L, S frequency bands to today's Ku, Ka and even higher optical frequency bands), the capacity of the system has indeed increased, but the method of increasing system capacity continues to rely on increasing frequency Many problems have been brought about, such as atmospheric attenuation of high-frequency signals and serious obstructions, complicated terminal antenna tracking, and inability of on-board payloads to handle huge information flows, etc.

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