Supporting an assisted satellite based positioning
First Claim
1. Method for supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said method comprising:
- replacing in said communication network a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time; and
providing said parameters including said replaced reference value as a part of assistance data for said satellite based positioning.
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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
23 Claims
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1. Method for supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said method comprising:
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replacing in said communication network a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time; and
providing said parameters including said replaced reference value as a part of assistance data for said satellite based positioning. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Method for supporting a satellite based positioning of a mobile arrangement using assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said method comprising:
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receiving at said mobile arrangement assistance data from said communication network, which assistance data comprises parameters of an orbit model describing a movement of a satellite including a time stamp that is based on a communication system time;
determining at said mobile arrangement a communication system time; and
estimating at said mobile arrangement a position of a satellite of said at least one satellite based positioning system using said parameters in said assistance data based on said determined communication system time. - View Dependent Claims (8, 9, 10, 11)
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- 12. Network element for a communication network supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with said communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said network element comprising processing means, said processing means being adapted to adapted to replace a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time, and adapted to provide parameters including a replaced reference value as a part of assistance data for said satellite based positioning.
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14. Mobile arrangement supporting a satellite based positioning of said mobile arrangement using assistance data, said mobile arrangement comprising:
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a satellite signal receiver adapted to acquire signals transmitted by satellites of at least one satellite based positioning system;
a communication component adapted to receive from a communication network assistance data with a time stamp that is based on a communication system time;
processing means adapted to determine a communication system time; and
processing means adapted to estimate a position of a satellite of said at least one satellite based positioning system using parameters in received assistance data based on a determined communication system time.
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15. System comprising a network element for a communication network supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with said communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said network element comprising processing means, said processing means being adapted to adapted to replace a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time, and adapted to provide parameters including a replaced reference value as a part of assistance data for said satellite based positioning and a mobile arrangement supporting a satellite based positioning of said mobile arrangement using assistance data, said mobile arrangement comprising:
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a satellite signal receiver adapted to acquire signals transmitted by satellites of at least one satellite based positioning system;
a communication component adapted to receive from a communication network assistance data with a time stamp that is based on a communication system time;
processing means adapted to determine a communication system time; and
processing means adapted to estimate a position of a satellite of said at least one satellite based positioning system using parameters in received assistance data based on a determined communication system time.
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16. A software code for supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said software code realizing the following steps when being executed by a processing unit of a network element of said communication network:
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replacing a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time; and
providing said parameters including said replaced reference value as a part of assistance data for said satellite based positioning. - View Dependent Claims (17, 19)
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18. A software code for supporting a satellite based positioning of a mobile arrangement using assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, said software code realizing the following steps when being executed by a processing unit of said mobile arrangement:
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receiving assistance data from said communication network including a time stamp that is based on a communication system time;
determining a communication system time; and
estimating a position of a satellite of said at least one satellite based positioning system using said parameters in said assistance data based on said determined communication system time.
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20. Apparatus for supporting a satellite based positioning of a mobile arrangement with assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, comprising:
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means for replacing in said communication network a reference value that is based on a satellite based positioning system time in available parameters of an orbit model describing a movement of a satellite by a reference value that is based on a communication system time; and
means for providing said parameters including said replaced reference value as a part of assistance data for said satellite based positioning. - View Dependent Claims (21)
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22. Apparatus for supporting a satellite based positioning of a mobile arrangement using assistance data, wherein said mobile arrangement is adapted to communicate with a communication network and to acquire signals transmitted by satellites of at least one satellite based positioning system, comprising:
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means for receiving at said mobile arrangement assistance data from said communication network, which assistance data comprises parameters of an orbit model describing a movement of a satellite including a time stamp that is based on a communication system time;
means for determining at said mobile arrangement a communication system time; and
means for estimating at said mobile arrangement a position of a satellite of said at least one satellite based positioning system using said parameters in said assistance data based on said determined communication system time. - View Dependent Claims (23)
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Specification