Satellite mobile communication random access method and system capable of compensating time in advance and medium
A satellite mobile communication and random access technology, applied in the field of satellite communication, can solve the problems of large cell radius, long satellite transmission distance, large delay difference, etc.
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[0129] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0130] A satellite mobile communication random access method with time advance compensation provided according to the present invention, comprising:
[0131] Downlink broadcast sending steps: Obtain the cell formed by the satellite beam on the ground, and obtain the minimum TA in the cell, denoted as TA min , so that the satellite sends the satellite position information and TA in the downlink broadcast min ;
[0132] Transmission delay calculation steps: make UE receive downlink broadcast, and obtain...
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