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US 2010/0142593 A1Published application
Cross-Talk Mitigation In Global Navigation Satellite Systems
AssigneeInfineon Technologies AG
InventorAndreas SCHMID
Life of this patent
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Abstract
Embodiments related to cross-talk mitigation are described and depicted.
Claims25
A method comprising:
- receiving a first global navigation satellite system signal associated with a first satellite, the first global navigation satellite system signal having modulated thereon a first Chip sequence associated with a first direct-sequence spreading code and a second Chip sequence associated with a second direct-sequence spreading code, the first spreading code having a first code time period and the second spreading code having a second code time period, the first code time period being longer than the second code time period;
- receiving a second global navigation satellite system signal associated with a second satellite, the second global navigation satellite system signal having modulated thereon a third Chip sequence associated with the first spreading code and a fourth Chip sequence associated with the second spreading code;
- selecting a starting time for integration of the first global navigation satellite system signal dependent on the characteristic of the first Chip sequence relative to the third Chip sequence;
- integrating the first global navigation satellite system signal based on the selected starting time;
- and
- code phase synchronizing to the first global navigation satellite system signal based on the integrating of the first global navigation satellite system signal.
3 more elements
A method comprising:
- transmitting information from a base station to a mobile receiver;
- selecting at the mobile receiver a starting time for integrating a first global navigation satellite system signal associated with a first satellite based on the transmitted information, the first global navigation satellite system signal being modulated by a first Chip sequence associated with a first spreading code and a second Chip sequence associated with a second spreading code, the first spreading code having a longer time period than the second spreading code;
- starting at the starting time an integration of the global navigation satellite system signal at the mobile receiver;
- and
- determining a position based on the integration of the global navigation satellite system signal.
2 more elements
A system comprising:
- a base station, the base station being configured to transmit information to a mobile receiver;
- a mobile receiver, the mobile receiver being configured to select a starting time for integrating a first global navigation signal associated with a first satellite based on the transmitted information, the first global navigation satellite system signal being modulated by a first Chip sequence associated with a first spreading code and a second Chip sequence associated with a second spreading code, the first spreading code having a longer time period than the first spreading code, the mobile receiver further being configured to receive a second global navigation satellite system signal associated with a second satellite, the second navigation satellite signal being modulated by a third Chip sequence associated with the first spreading code and a fourth Chip sequence associated with the second spreading code, the mobile receiver further being configured to select the starting time based on the characteristic of the first Chip sequence of the first global navigation satellite system signal during a time interval with respect to the third Chip sequence of the second global navigation satellite system signal during said time interval.
A device comprising:
- a computing entity, the computing entity being configured to determine a starting time for integrating a first global navigation satellite system signal associated with a first satellite, the first global navigation satellite system signal being modulated by a first Chip sequence associated with a first direct-sequence spreading code and a second Chip sequence associated with a second direct-sequence spreading code, the first direct-sequence spreading code having a longer time period than the second direct-sequence spreading code, wherein the computing entity is further configured to select the starting time based on a characteristic of the first Chip sequence during a time interval relative to the third Chip sequence during the time interval,
- wherein the second global navigation satellite signal is associated with a second satellite and the third Chip sequence is associated with the first direct-sequence spreading code.
A computer programme with a computer code executable on a computer, the computer code when executed on the computer selecting a starting time for integrating a first global navigation satellite system signal associated with a first satellite, the first global navigation satellite system signal being modulated by a first Chip sequence associated with a first spreading code and a second Chip sequence associated with a second spreading code, the first spreading code having a longer time period than the second spreading code, wherein the starting time is selected based on a characteristic of the modulated first Chip sequence relative to the modulated third Chip sequence,
- the second global navigation satellite system signal being associated with a second satellite, and
- the third Chip sequence being associated with the first spreading code.
Dependencies are inferred from the claim text.