Patent ID: 11940540
Assignee: NEC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 13:
14. A position correction information delivery method comprising:
by a base station that delivers position correction information using a positioning scheme in which a receiver obtaining a position thereof and a reference station whose position is known measure a phase of a carrier wave from a satellite and position information of the receiver is obtained in real time based on position correction information transmitted from the reference station,
selecting a second base station having a reference station located nearby to the base station or a reference station located nearby to the base station, from one or more second base stations and/or one or more reference stations, registered in a database, each of the one or more second base stations having the reference stations and providing position correction information from the reference station, each of the one or more reference stations providing position correction information; and
receiving the position correction information from the selected second base station or reference station and broadcasting the position correction information to the cell.