Patent ID: 11889412
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. The method according to claim 14, wherein the operating position of the nautical beacon for establishing a radio communication link by the radio data communication equipment thereof is determined by:
periodically determining, by the operating position detection device of the nautical beacon, of altitudes of the nautical beacon;
calculating, by the operating position detection device of the nautical beacon, a reference altitude based on the periodically determined altitudes of the nautical beacon; and
determining, by the operating position detection device of the nautical beacon, that the radio data communication equipment of the nautical beacon is in an operating position when a present altitude of the nautical beacon exceeds a threshold value above the reference altitude.