METHOD AND SYSTEM FOR MAINTAINING A GNSS RECEIVER IN A HOT-STATE
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Accused Products
Abstract
A GNSS receiver in a wake up state during a standby mode may acquire ephemeris from received GNSS signals such as GPS signals and/or GLONASS signals. When subsequently transitioning from the standby mode to a normal mode operating at a high frequency clock, the acquired ephemeris may be utilized to generate a navigation solution for the GNSS receiver. The GNSS receiver in the wake up state during the standby mode may be switched to operate at the high frequency clock in order to receive GNSS signals. The GNSS receiver may extract complete ephemeris from the received GNSS signals, and may subsequently transition from the wake up state to a sleep state during the standby mode to save power. Radio frequency front-end components of the GNSS receiver may only be turned on to receive the GNSS signals. The GNSS receiver may transition between the standby mode and the normal mode.
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Citations
44 Claims
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1-22. -22. (canceled)
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23. A method for satellite communication, the method comprising:
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when a navigation satellite system receiver is in a wakeup state during a standby mode, acquiring fresh ephemeris; and when said navigation satellite system receiver subsequently transitions from said standby mode to a normal mode operating at a high frequency clock, generating a navigation solution for said navigation satellite system receiver utilizing said acquired fresh ephemeris. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A system for satellite communication, the system comprising:
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one or more circuits for use in a navigation satellite system receiver, wherein when a navigation satellite system receiver is in a wakeup state during a standby mode, said one or more circuits are operable to acquire fresh ephemeris; and said one or more circuits are operable to generate a navigation solution for said navigation satellite system receiver utilizing said acquired fresh ephemeris, when said navigation satellite system receiver subsequently transitions from said standby mode to a normal mode operating at a high frequency clock. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification