METHOD FOR POSITION DETERMINATION WITH MEASUREMENT STITCHING
First Claim
Patent Images
1. A method comprising:
- storing measurement information acquired from one or more transmitters, wherein said stored measurement information is not sufficient to compute a navigation solution; and
acquiring additional information enabling use of said stored measurement information in computing said navigation solution, wherein said acquiring is subsequent to said storing measurement information, and wherein said acquiring is in response to a changing condition.
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Abstract
A mobile communications device uses a method for determining position that involves a positioning filter, such as a Kalman filter, which is initialized with measurements from reference stations such as satellite vehicles and/or base stations which may be acquired during different epochs. Accordingly, the positioning filter may be used for position estimation without the need to first acquire at least three different signals during the same measurement epoch.
105 Citations
60 Claims
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1. A method comprising:
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storing measurement information acquired from one or more transmitters, wherein said stored measurement information is not sufficient to compute a navigation solution; and acquiring additional information enabling use of said stored measurement information in computing said navigation solution, wherein said acquiring is subsequent to said storing measurement information, and wherein said acquiring is in response to a changing condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile communications device comprising:
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a receiver adapted to receive signals; a processor in communication with said receiver, said processor adapted to; store measurement information acquired from one or more transmitters, wherein said stored information is not sufficient to compute a navigation solution; and acquire additional information enabling use of said stored measurement information in computing said navigation solution, said additional information being acquired subsequent to storage of said measurement information and in response to a changing condition. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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means for storing measurement information acquired from one or more transmitters, wherein said stored information is not sufficient to compute a navigation solution; and means for acquiring additional information enabling use of said stored measurement information in computing said navigation solution, wherein said acquiring is subsequent to said storing measurement information, and wherein said acquiring is in response to a changing condition. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A processor-readable medium encoded with instruction code, wherein the instruction code, when executed by a processing unit, performs navigation, the instruction code comprising:
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code to store measurement information acquired from one or more transmitters, wherein said stored information is not sufficient to compute a navigation solution; and code to acquire additional information enabling use of said stored measurement information in computing said navigation solution, said additional information being acquired subsequent to storage of said measurement information and in response to a changing condition. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A method comprising:
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computing a navigation solution based at least in part on measurement data obtained from one or more transmitters; storing information acquired from one or more additional transmitters; and updating said navigation solution based at least in part on said stored information in response to a changing condition. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
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45. An apparatus comprising:
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means for computing a navigation solution based at least in part on measurement data obtained from one or more transmitters; means for storing information acquired from one or more additional transmitters; and means for updating said navigation solution based at least in part on said stored information in response to a changing condition. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
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53. A processor-readable medium encoded with instruction code, wherein the instruction code, when executed by a processing unit, performs navigation, the instruction code comprising:
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code to compute a navigation solution based at least in part on measurement data obtained from one or more transmitters; code to store information acquired from one or more additional transmitters; and code to update said navigation solution based at least in part on said stored information in response to a changing condition. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60)
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Specification