GNSS architecture
First Claim
Patent Images
1. A host device comprising:
- host processing circuitry including;
a decision processor configured to determine at least one mode parameter based on a request received from the host processing circuitry; and
navigation circuitry including;
a radio frequency tuner in communication with at least one antenna;
a baseband processor configured to;
demodulate at least one signal received by the radio frequency tuner originating from at least one global navigation satellite system (GNSS) satellite; and
output signal measurements based on the demodulated at least one signal; and
a central processing unit (CPU) configured to generate a position data point from the demodulated at least one signal, wherein;
the host processing circuitry is further configured to;
determine a position based on the at least one mode parameter received from the decision processor; and
determine, based at least upon the at least one mode parameter, whether the CPU determines the position data point based at least upon the signal measurements or the baseband processor transmits the signal measurements to the host processing circuitry.
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Abstract
Disclosed are various embodiments of Global Navigation Satellite System (GNSS) chipsets or architecture. Based upon a requested accuracy and/or update of a host application, embodiments of the disclosure can calculate position data points on-board the GNSS chipset or allow a host processor to calculate position data points, which can allow the host processor to enter a low power mode if the requested update rate and/or accuracy allow.
21 Citations
20 Claims
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1. A host device comprising:
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host processing circuitry including; a decision processor configured to determine at least one mode parameter based on a request received from the host processing circuitry; and navigation circuitry including; a radio frequency tuner in communication with at least one antenna; a baseband processor configured to; demodulate at least one signal received by the radio frequency tuner originating from at least one global navigation satellite system (GNSS) satellite; and output signal measurements based on the demodulated at least one signal; and a central processing unit (CPU) configured to generate a position data point from the demodulated at least one signal, wherein; the host processing circuitry is further configured to; determine a position based on the at least one mode parameter received from the decision processor; and determine, based at least upon the at least one mode parameter, whether the CPU determines the position data point based at least upon the signal measurements or the baseband processor transmits the signal measurements to the host processing circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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circuitry configured to; receive at least one radio frequency signal; tune the at least one radio frequency signal; demodulate the received at least one signal originating from at least one global navigation satellite system satellite; generate a position data point from the demodulated at least one signal; and output signal measurements based on the demodulated at least one signal; and host processing circuitry including a decision processor configured to determine at least one mode parameter based on a request received from the host processing circuitry, the host processing circuitry being configured to; determine a position based on the at least one mode parameter received from the decision processor; and determine, based at least upon the at least one mode parameter, whether the circuitry determines the position based at least upon the signal measurements or the circuitry transmits the signal measurements to the host processing circuitry.
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18. A method comprising:
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outputting, by a global navigation satellite system (GNSS) chipset in a host device, at least one signal measurement based upon at least one signal received by a radio frequency tuner, the demodulated at least one signal originating from at least one GNSS satellite, the GNSS chipset having a central processing unit (CPU) configured to generate a position data point from the demodulated at least one signal; determining, by a decision processor that is included in host processing circuitry, at least one mode parameter based on a request received from the host processing circuitry; determining, by the host processing circuitry, a position based on the at least one mode parameter received from the decision processor; and determining, by the host processing circuitry of the host device and at least upon the at least one mode parameter, whether the CPU generates the position data point based at least upon the at least one signal measurement or the at least one signal measurement is transmitted to the host processing circuitry, wherein the host processing circuitry is external to the GNSS chipset. - View Dependent Claims (19, 20)
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Specification