Assisted satellite signal based positioning
First Claim
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1. A method comprising:
- assembling, by an apparatus, a set of parameters for a plurality of satellites belonging to at least two different satellite systems;
including in said set of parameters for each of said satellites of said at least two different satellite systems a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;
almanac data for said respective satellite and non-immediate information for said respective satellite;
including in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems, wherein said common part comprises a week count and a time of week as parts of reference time information that is provided specifically for at least one of almanac data and non-immediate information, and wherein said parts of reference time information are excluded from the respective individual part for the satellites belonging to said at least one of said at least two different satellite systems; and
directing transmission, by said apparatus, of said assembled set of parameters in a message to a device as assistance data for a global navigation satellite system based positioning.
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Abstract
A set of parameters for a plurality of satellites belonging to at least two different satellite systems is assembled. Further, a definition of a data structure is provided, the data structure including at least one section for parameters for a plurality of satellites belonging to at least two different satellite systems.
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Citations
20 Claims
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1. A method comprising:
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assembling, by an apparatus, a set of parameters for a plurality of satellites belonging to at least two different satellite systems; including in said set of parameters for each of said satellites of said at least two different satellite systems a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;
almanac data for said respective satellite and non-immediate information for said respective satellite;including in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems, wherein said common part comprises a week count and a time of week as parts of reference time information that is provided specifically for at least one of almanac data and non-immediate information, and wherein said parts of reference time information are excluded from the respective individual part for the satellites belonging to said at least one of said at least two different satellite systems; and directing transmission, by said apparatus, of said assembled set of parameters in a message to a device as assistance data for a global navigation satellite system based positioning. - View Dependent Claims (2, 3, 4, 15, 16, 19)
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5. An apparatus comprising a processor and a memory including computer program code, the memory and the computer program code configured to, with the processor, cause the apparatus at least to perform:
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assemble a set of parameters for a plurality of satellites belonging to at least two different satellite systems; include for said assembling in said set of parameters for each of said satellites of said at least two different satellite systems a respective individual part for at least one parameter, wherein said individual part is valid only for a respective one of said satellites and wherein said individual part comprises at least one of;
almanac data for said respective satellite and non-immediate information for said respective satellite;include for said assembling in said set of parameters a common part for at least one parameter, wherein said common part is valid for each of said satellites belonging to at least one of said at least two different satellite systems, wherein said common part comprises a week count and a time of week as parts of reference time information that is provided specifically for at least one of almanac data and non-immediate information, and wherein said parts of reference time information are excluded from the respective individual part for the satellites belonging to said at least one of said at least two different satellite systems; and enable provision of said assembled set of parameters in a message to a device as assistance data for a global navigation satellite system based positioning. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 20)
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Specification