Satellite-based position determination
First Claim
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1. An apparatus, comprising:
- a wireless portion configured to receive wireless communication signals and to estimate data indicating a usage environment of the apparatus, anda satellite receiver portion configured to receive satellite position signals via a first data connection,wherein the apparatus is configured to adapt at least one parameter based on the data indicating a usage environment, wherein said at least one parameter at least comprises an assistance data update rate parameter indicating an update rate of receiving assistance data via a second data connection separate from the first data connection,and wherein the satellite receiver portion is further configured to acquire satellite position signals based on said adapted at least one parameter.
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Abstract
Method and apparatuses involving satellite position signals are disclosed. Based on data indicating a usage environment, parameters, for example acquisition parameters or calculation parameters, are adapted.
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Citations
21 Claims
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1. An apparatus, comprising:
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a wireless portion configured to receive wireless communication signals and to estimate data indicating a usage environment of the apparatus, and a satellite receiver portion configured to receive satellite position signals via a first data connection, wherein the apparatus is configured to adapt at least one parameter based on the data indicating a usage environment, wherein said at least one parameter at least comprises an assistance data update rate parameter indicating an update rate of receiving assistance data via a second data connection separate from the first data connection, and wherein the satellite receiver portion is further configured to acquire satellite position signals based on said adapted at least one parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
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10. A satellite receiver, comprising:
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a satellite radio frequency portion configured to receive satellite position signals via a first data connection, a mixer coupled to said satellite radio frequency portion to mix the received signals with a carrier frequency, a correlator coupled with said mixer to correlate the mixed signal with a signal modulated by a code, a processor coupled with the correlator and being configured to process the correlated signal, and an interface, wherein said processor is further configured to adapt at least one acquisition parameter of the satellite receiver based on data received via said interface, wherein said at least one acquisition parameter at least comprises an assistance data update rate parameter indicating an update rate of receiving assistance data via a second data connection separate from the first data connection, wherein the satellite receiver is configured to acquire satellite position signals based on said adapted at least one acquisition parameter wherein said interface is configured to receive said data from a wireless portion, and wherein said data indicates a usage environment. - View Dependent Claims (11, 12, 13, 14)
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15. A method embodied in a satellite-based position determining apparatus, comprising:
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receiving wireless communication signals, determining data indicating a usage environment of the satellite-based position determining apparatus based on the received wireless communication signals, and adapting parameters for processing satellite navigation signals received via a first data connection based on said data indicating a usage environment, wherein said parameters comprise at least an assistance data update rate parameter indicating an update rate of receiving assistance data via a second data connection separate from the first data connection, and acquiring satellite navigation signals based on said adapted parameters. - View Dependent Claims (16, 17, 18, 19, 21)
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Specification