Supporting an assisted satellite based positioning
First Claim
1. A method for supporting a satellite based positioning of a mobile device using assistance data, said method comprising at said mobile device:
- receiving assistance data from a communication network including parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system,wherein said parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or have been derived from another source than broadcast satellite data;
receiving differential corrections for said received parameters of said orbit model; and
correcting said received parameters of said orbit model based on said differential corrections.
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Accused Products
Abstract
For supporting a satellite based positioning of a mobile arrangement (30,40) with assistance data, a communication network converts parameters of a dedicated orbit model describing a movement of a satellite (50,60), which dedicated orbit model is defined for a particular satellite based positioning system, into parameters of a common orbit model describing a movement of a satellite (50,60). Alternatively or in addition, the network replaces a reference value that is based on a satellite based positioning system time in available parameters of an orbit model by a reference value that is based on a communication system time. After the parameter conversion and/or the reference value replacement, the parameters are provided as a part of assistance data for the satellite based positioning. Alternatively or in addition, a set of data is transmitted in one direction between the mobile arrangement and the communication network, which is independent of the employed positioning mode.
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Citations
19 Claims
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1. A method for supporting a satellite based positioning of a mobile device using assistance data, said method comprising at said mobile device:
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receiving assistance data from a communication network including parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system, wherein said parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or have been derived from another source than broadcast satellite data; receiving differential corrections for said received parameters of said orbit model; and correcting said received parameters of said orbit model based on said differential corrections. - View Dependent Claims (2, 3, 4, 16)
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5. A method for supporting a satellite based positioning of a mobile device with assistance data, said method comprising:
obtaining in a communication network parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system, wherein said obtained parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or are derived from another source than broadcast satellite data; and
providing said obtained parameters and differential corrections for said obtained parameters as a part of assistance data for said satellite based positioning to at least one mobile device, wherein said differential corrections enable a mobile device to correct said parameters.- View Dependent Claims (6, 7, 8, 9, 17)
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10. An apparatus supporting a satellite based positioning of said apparatus using assistance data, said apparatus comprising:
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a communication component adapted to receive assistance data from a communication network including parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system and differential corrections for said parameters of said orbit model, wherein said parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or have been derived from another source than broadcast satellite data; and a processing unit configured to correct said received parameters of said orbit model based on said differential corrections. - View Dependent Claims (11, 12)
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13. A apparatus for supporting a satellite based positioning of a mobile device with assistance data, said apparatus comprising a processing component adapted to obtain parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system, wherein said obtained parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or are derived from another source than broadcast satellite data;
- and adapted to provide said obtained parameters and differential corrections for said obtained parameters as a part of assistance data for said satellite based positioning to at least one mobile device, wherein said differential corrections enable a mobile device to correct said parameters.
- View Dependent Claims (14, 15)
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18. An apparatus comprising:
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means for receiving assistance data from a communication network including parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system and for receiving differential corrections for said received parameters of said orbit model, wherein said parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or have been derived from another source than broadcast satellite data; and means for correcting said received parameters of said orbit model based on said differential corrections.
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19. An apparatus comprising:
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means for obtaining in a communication network parameters of an orbit model describing a movement of a respective satellite of a particular satellite based positioning system, wherein said obtained parameters have a format that is different from a format of parameters of an orbit model defined for said satellite based positioning system or are derived from another source than broadcast satellite data; and means for providing said obtained parameters and differential corrections for said obtained parameters as a part of assistance data for said satellite based positioning to at least one mobile device, wherein said differential corrections enable a mobile device to correct said parameters.
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Specification