Method and apparatus for compensating for frequency offset
AssigneeElectronics and Telecommunications Research Institute
InventorsHo Min EUM, Heung Mook KIM
Life of this patent
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Abstract
The present invention provides a method and apparatus for compensating for a frequency offset. The apparatus for compensating for a frequency offset includes a signal processing unit configured to receive a first frequency signal from a GPS receiver, a local oscillator configured to transfer a second frequency signal to the GPS receiver so that the first frequency signal is generated, and a frequency offset compensation unit configured to receive frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver and remove a frequency offset component of the local oscillator based on the frequency offset information.
Claims18
An apparatus for compensating for a frequency offset, comprising:
- a signal processing unit configured to receive a first frequency signal from a Global Positioning System (GPS) receiver;
- a local oscillator configured to transfer a second frequency signal to the GPS receiver so that the first frequency signal is generated;
- and
- a frequency offset compensation unit configured to receive frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver and remove a frequency offset component of the local oscillator based on the frequency offset information.
A method of compensating for a frequency offset, comprising:
- transferring a second frequency signal to a Global Positioning System (GPS) receiver so that a first frequency signal is generated;
- receiving the first frequency signal from the GPS receiver;
- receiving frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver;
- and
- removing a frequency offset component of a local oscillator based on the frequency offset information.
An apparatus for compensating for a frequency offset, comprising:
- a signal processing unit configured to receive a first frequency signal from a Global Positioning System (GPS) receiver;
- a local oscillator configured to transfer a second frequency signal to the GPS receiver so that the first frequency signal is generated;
- and
- a frequency offset compensation unit configured to receive frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver and remove a frequency offset component of the local oscillator using the frequency offset information and a total amount of a frequency of a transmission signal converted by the local oscillator.
A method of compensating for a frequency offset, comprising:
- transferring a second frequency signal of a local oscillator to a Global Positioning System (GPS) receiver so that a first frequency signal is generated;
- receiving the first frequency signal from the GPS receiver;
- receiving frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver;
- calculating a total amount of a frequency of a transmission signal converted by the local oscillator;
- and
- removing a frequency offset component of the local oscillator using the frequency offset information and the total amount of the frequency of the transmission signal converted by the local oscillator.
Dependencies are inferred from the claim text.