Beam hopping control method and device for transparent forwarding satellite

Abstract

The invention relates to the technical field of communication, in particular to a beam hopping control method and device for a transparent forwarding satellite, which are used for improving beam control accuracy. The method comprises the following steps: a ground gateway station generates corresponding beam control information based on terminal resource configuration information corresponding to a terminal, and sends the beam control information to the transparent forwarding satellite, and enabling the transparent forwarding satellite to control the hopping of the hopping beam and the effective time point of the hopping beam based on the beam control information. Therefore, the ground gateway station sends the beam control information including the synchronization identifier, the beam effective time information and the beam adjustment information to the transparent forwarding satellite, so that the transparent forwarding satellite can accurately control the hopping of the hopping beam and the beam effective time based on the beam control information; the timing uncertainty brought by the time from ground gateway station resource allocation to satellite beam execution is shortened, and the beam control accuracy is further improved.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a method and device for controlling beam hopping for transparent forwarding satellites. Background technique [0002] For traditional multi-beam satellites, the bandwidth and power need to be evenly allocated to each spot beam, but because the distribution and demand of ground services are non-uniform, the resource utilization rate of the satellite system is not high, and the actual communication capacity is small. [0003] In order to improve the resource utilization rate of the satellite system and increase the communication capacity, a phased array agile beam technology, also known as beam hopping technology, is proposed based on the traditional multi-beam technology, that is, the service area of ​​the beam covers the entire The area is constantly changing, covering all service areas in a time-sharing manner, see figure 1 As shown, each service area that...

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Problems solved by technology

However, since the ground gateway station and the transparent forwarding satellite control system do not adopt a unified counting reference, it is difficult to accurately estimate the time interval dt, and only a too long time interval dt can be reserved, which reduces the accuracy of beam control

[0006] On the other hand, due to the limitation of the beam steering method of the existing transparent forwarding satellite communication system by the information bits carried by the beam steering and the fixed time window length, the time granularity of the beam-hopping service cannot be too small, and the fixed time window length cannot be too small. Otherwise, the number of information bits at the required addressing service beam time will be relatively large, and the time granularity of the existing beam-hopping service is generally at least 1ms, which is for voice and Internet of Things that require smaller time granularity In terms of business, it will cause a waste of resources

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