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US 2020/0025859 A1Published application
Sdr for navigation with lte signals
AssigneeThe Regents of the University of California
InventorsZak M. Kassas, Kimia Shamaei, Joe Khalife
Life of this patent
Estimating the term…
Abstract
A software-defined receiver (SDR) using real long term evolution (LTE) signals may be used for navigation. The LTE SDR leverages the structure of the downlink LTE signal, and provides signal acquisition, navigation-relevant high-level system information extraction, and signal tracking. The LTE SDR also provides the ability to obtain a time-of-arrival (TOA) estimate from received LTE signals, which provides a navigation solution comparable to a GPS-only navigation solution.
Claims20
A navigation system comprising:
- a global navigation satellite solution (GNSS) receiver to receive a plurality of GNSS signals from a plurality of GNSS satellites;
- a long term evolution (LTE) signal of opportunity (SOP) receiver to receive an SOP signal from at least one LTE transceiver station;
- and
- a processor to:
- determine a plurality of GNSS pseudorange measurements based on the received plurality of GNSS signals;
- determine an SOP pseudorange measurement based on the received SOP signal;
- and
- determine an estimated receiver position based on the SOP pseudorange measurement and the plurality of GNSS pseudorange measurements.
5 more elements
A navigation method comprising:
- receiving a plurality of GNSS signals from a plurality of GNSS satellites at a global navigation satellite solution (GNSS) receiver;
- receiving an SOP signal from at least one LTE transceiver station at a long term evolution (LTE) signal of opportunity (SOP) receiver;
- determining a plurality of GNSS pseudorange measurements based on the received plurality of GNSS signals;
- determining an SOP pseudorange measurement based on the received SOP signal, and
- determining an estimated receiver position based on the SOP pseudorange measurement and the plurality of GNSS pseudorange measurements.
2 more elements
Dependencies are inferred from the claim text.