Method and apparatus for improving accuracy of radio timing measurements
First Claim
1. A method for determining radio timing measurement information, comprising:
- making a radio timing measurement for each of a plurality of radio sources 1, . . . , N−
1 at respective times T1, . . . , TN−
1;
making a radio timing measurement of a common radio source N for each of times T1+, . . . , TN−
1+; and
determining a radio timing measurement for said common radio source N for each of said times T1, . . . , TN−
1 based on said radio timing measurement of said common radio source N for each of said times T1+, . . . , TN−
1+.
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Accused Products
Abstract
A system, method, apparatus, means, and computer program code for improving accuracy of radio timing measurements. According to embodiments of the present invention, a terminal may obtain a measurement of each of a plurality of radio transmission sources at a distinct instance in time. In addition, a radio timing measurement for a common radio source is obtained for each of the distinct instants in time. The result will be a pair of radio timing measurements for each distinct instance in time containing smaller adjustment errors than radio timing measurements for all radio sources obtained for one common instant in time. The pairs of radio timing measurements can be used to more accurately support applications in which the geographic position of the terminal is obtained.
49 Citations
28 Claims
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1. A method for determining radio timing measurement information, comprising:
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making a radio timing measurement for each of a plurality of radio sources 1, . . . , N−
1 at respective times T1, . . . , TN−
1;
making a radio timing measurement of a common radio source N for each of times T1+, . . . , TN−
1+; and
determining a radio timing measurement for said common radio source N for each of said times T1, . . . , TN−
1 based on said radio timing measurement of said common radio source N for each of said times T1+, . . . , TN−
1+. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for providing radio timing measurement information, comprising:
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making a first measurement of radio timing information for a first radio transmission source at a first instant in time;
making a second measurement of radio timing information for a common radio transmission source at a second instant in time;
determining a third measurement of radio timing information for said common radio transmission source for said first instant in time based on said second measurement;
making a fourth measurement of radio timing information for a second radio transmission source at a third instant in time;
making a fifth measurement of radio timing information for said common radio transmission source at a fourth instant in time;
determining a sixth measurement of radio timing information for said common radio transmission source for said third instant in time based on said fifth measurement; and
providing data indicative of said first measurement, said third measurement, said fourth measurement, and said sixth measurement.
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24. A method for providing radio timing measurement information, comprising:
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making a first measurement of radio timing information for a first radio transmission source at a first instant in time;
determining a second measurement of radio timing information for said first radio transmission source at a second instant in time based on said first measurement;
making a third measurement of radio timing information for a common radio transmission source at a third instant in time;
determining a fourth measurement of radio timing information for said common radio transmission source for said second instant in time based on said third measurement;
making a fifth measurement of radio timing information for a second radio transmission source at a fourth instant in time;
determining a sixth measurement of radio timing information for said second radio transmission source at a fifth instant in time based on said fifth measurement;
making a seventh measurement of radio timing information for said common radio transmission source at a sixth instant in time;
determining an eighth measurement of radio timing information for said common radio transmission source for said fifth instant in time based on said seventh measurement; and
providing data indicative of said second measurement, said fourth measurement, said sixth measurement, and said eighth measurement.
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25. A system for determining radio timing measurement information, comprising:
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a memory;
a communication port; and
a processor connected to said memory and said communication port, said processor being operative to;
make a radio timing measurement for each of a plurality of radio sources 1, . . . , N−
1 at respective times T1, . . . , TN−
1;
make a radio timing measurement of a common radio source N for each of times T1+, . . . , TN−
1+; and
determine a radio timing measurement for said common radio source N for each of said times T1, . . . , TN−
1 based on said timing measurement of said common radio source N for each of said times T1+, . . . , TN−
1+. - View Dependent Claims (26)
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27. A computer program product in a computer readable medium for determining radio timing measurement information, comprising:
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first instructions for obtaining a radio timing measurement for each of a plurality of radio sources 1, . . . , N−
1 at respective times T1, . . . , TN−
1;
second instructions for obtaining a radio timing measurement of a common radio source N for each of times T1+, . . . , TN−
1+; and
third instructions for obtaining a radio timing measurement for said common radio source N for each of said times T1, . . . , TN−
1 based on said radio timing measurement of said common radio source N for each of said times T1+, . . . , TN−
1+. - View Dependent Claims (28)
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Specification