Global navigation satellite system (gnss) receiver operation during spoofing

A device for operating a Global Navigation Satellite System (GNSS) receiver, the device comprising:

• the GNSS receiver;
• a memory;
• and
• one or more processors communicatively coupled with the GNSS receiver and the memory, wherein the one or more processors are configured to:
• operate the GNSS receiver in a first state with respect to a first GNSS band;
• receive a first set of GNSS signals via the GNSS receiver, the first set of GNSS signals comprising a first at least one GNSS signal, the first at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the first state with respect to the first GNSS band;
• determine a first position estimate based at least in part on the first at least one GNSS signal;
• obtain data indicating spoofing may be occurring in the first GNSS band;
• responsive to obtaining the data, operate the GNSS receiver in a second state with respect to the first GNSS band;
• receive a second set of GNSS signals at the GNSS receiver, the second set of GNSS signals comprising a second at least one GNSS signal, the second at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band;
• and
• determine a second position estimate based at least in part on the second set of GNSS signals, wherein:
• determining the second position estimate is based at least in part on a third at least one GNSS signal, the third at least one GNSS signal received via a second GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band, and
• determining the second position estimate is not based on any GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band.

An apparatus for operating a Global Navigation Satellite System (GNSS) receiver, the apparatus comprising:

• means for operating the GNSS receiver in a first state with respect to a first GNSS band;
• means for receiving a first set of GNSS signals at the GNSS receiver, the first set of GNSS signals comprising a first at least one GNSS signal, the first at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the first state with respect to the first GNSS band;
• means for determining a first position estimate based at least in part on the first at least one GNSS signal;
• means for obtaining data indicating spoofing may be occurring in the first GNSS band;
• means for operating the GNSS receiver in a second state with respect to the first GNSS band responsive to obtaining the data;
• means for receiving a second set of GNSS signals at the GNSS receiver, the second set of GNSS signals comprising a second at least one GNSS signal, the second at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band;
• and
• means for determining a second position estimate based at least in part on the second set of GNSS signals, wherein:
• determining the second position estimate is based at least in part on a third at least one GNSS signal, the third at least one GNSS signal received via a second GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band, and
• determining the second position estimate is not based on any GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band.

A non-transitory computer-readable medium storing instructions for operating a Global Navigation Satellite System (GNSS) receiver, the instructions comprising code for:

• operating the GNSS receiver in a first state with respect to a first GNSS band;
• receiving a first set of GNSS signals at the GNSS receiver, the first set of GNSS signals comprising a first at least one GNSS signal, the first at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the first state with respect to the first GNSS band;
• determining a first position estimate based at least in part on the first at least one GNSS signal;
• obtaining data indicating spoofing may be occurring in the first GNSS band;
• responsive to obtaining the data, operating the GNSS receiver in a second state with respect to the first GNSS band;
• receiving a second set of GNSS signals at the GNSS receiver, the second set of GNSS signals comprising a second at least one GNSS signal, the second at least one GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band;
• and
• determining a second position estimate based at least in part on the second set of GNSS signals, wherein:
• determining the second position estimate is based at least in part on a third at least one GNSS signal, the third at least one GNSS signal received via a second GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band, and
• determining the second position estimate is not based on any GNSS signal received via the first GNSS band while the GNSS receiver is operating in the second state with respect to the first GNSS band.