Patent ID: 11885891
Assignee: ZTE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The method of claim 1, wherein
the method further comprises acquiring a current target time of the terminal in response to acquiring the target position information of the terminal, and
selecting the N satellites according to the ephemeris data record in the target record set to form the visible satellite list comprises:
classifying ephemeris data records having a same satellite number in the target record set into a subset;
obtaining visible windows of satellites corresponding to satellite numbers in a plurality of subsets according to satellite elevation angles and record timestamps of a plurality of ephemeris data records in the plurality of subsets, wherein each of the visible windows is determined by start time and end time during which the satellite elevation angle is greater than a cut-off angle; and
selecting the N satellites from a plurality of satellites to form the visible satellite list, wherein a visible window corresponding to each of the plurality of satellites comprises the target time of the terminal.