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US 11,802,978 B2Granted
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 long term evolution (LTE) signal of opportunity (SOP) receiver to receive an SOP signal from at least one LTE transceiver station, the SOP signal including an LTE secondary synchronization signal (SSS);
- and
- a processor to:
- track the LTE SSS based on a feedback loop control system;
- determine a plurality of SOP pseudorange measurements based on the LTE SSS;
- and
- determine an estimated receiver position based on the plurality of SOP pseudorange measurements.
4 more elements
A navigation method comprising:
- receiving an SOP signal from at least one LTE transceiver station at a long term evolution (LTE) signal of opportunity (SOP) receiver, the SOP signal including an LTE secondary synchronization signal (SSS);
- tracking the LTE SSS based on a feedback loop control system;
- determining a plurality of SOP pseudorange measurements based on the LTE SSS;
- and
- determining an estimated receiver position based on the plurality of SOP pseudorange measurements.
2 more elements
Dependencies are inferred from the claim text.