Dynamic allocation realization structure of satellite-borne treatment source pool

Abstract

The invention discloses a dynamic allocation realization structure of a satellite-borne treatment resource pool, which comprises a PRACH pilot capture unit, a channel selection unit, a despreading and demodulation resource pool and a time and control unit. The PRACH pilot capture unit extracts user channel signature information contained in input wave beam signals received by a satellite and sends the user channel signature information to the time and control unit. The channel selection unit, according to the selection control instruction of the time and control unit, screens channel signals to be processed from the input wave beam signals received by the satellite and sends the channel signals to the despreading and demodulation resource pool. The despreading and demodulation resource pool receives the screened channel signal to be processed from the channel selection unit and searches for and despreads and demodulates the channel signals to be processed by using parameter information transmitted by the time and control unit. The time and control unit is responsible for the control work of the whole dynamic allocation structure.

Description

technical field [0001] The invention belongs to the field of satellite communication, and relates to a dynamic allocation realization structure of a space-borne load processing resource pool, which can be jointly designed with space-borne switching equipment. Background technique [0002] The resources on the satellite are very precious. If the resources of each cell are fixedly allocated like the ground network, it will cause a lot of waste. The user antenna on the satellite has hundreds of beams. If each beam is regarded as a cell, it is completely different from the cell on the ground. The cell base station on the ground completes the processing function, which is geographically dispersed, while the processing functions of hundreds of beams on the satellite are concentrated in the on-board processor or transparently forwarded to the gateway station. Obviously, the resources of the on-board processor are very limited due to the constraints of the satellite environment. ...

AI Technical Summary

Problems solved by technology

[0004] In the GEO satellite mobile communication system based on 3G and its compatible technology, the BUTLER matrix allocates power between beams. If the processing capacity of each beam is fixed according to the maximum capacity of each beam, it will cause a lot of waste (because it is not All users of all beams need service simultaneously), which would be unacceptable in terms of power consumption volume

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