Random access method, device and equipment of low earth orbit satellite and readable storage medium
The embodiment of the invention discloses a random access method, device and equipment for a low-orbit satellite and a readable storage medium, and the method comprises the steps: obtaining a time advance which is determined based on the orbit height of a target low-orbit satellite at the current mo...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The embodiment of the invention discloses a random access method, device and equipment for a low-orbit satellite and a readable storage medium, and the method comprises the steps: obtaining a time advance which is determined based on the orbit height of a target low-orbit satellite at the current moment and the maximum elevation angle of a wave beam; the random access pilot frequency of the current ground terminal is sent to the target low-orbit satellite at a target moment, and the target moment is the moment when the starting moment of the channel resource allocated to the random access pilot frequency is shifted forwards by not more than the time advance. According to the technical scheme, the low-orbit satellite is pulled close to the position of the ground base station, so that the length of the random access pilot frequency can be shortened, the signaling overhead of the random access pilot frequency is reduced, and the spectrum utilization rate of the PRACH channel is improved.
本公开实施例公开了一种低轨卫星的随机接入方法、装 |
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