Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-01-29
2000-08-01
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455 671, 342357, G01S 302, H04B 700
Patent
active
060979593
ABSTRACT:
A telecommunications system and method is disclosed for improving the accuracy of the Time of Arrival (TOA) information extracted from the Timing Advance (TA) values reported by base stations. This can be accomplished by utilizing an average of m (m=2 or more) consecutive TA values, which will on average have a smaller mean-squared error than using a single TA value. By averaging multiple consecutive TA values to obtain a single measurement of TOA, the accuracy of the location algorithm employing the TOA information can be improved, and thus, the geographical location of a mobile terminal within a cellular network can be more accurately determined. The improvement in the accuracy of the location of the mobile terminal can be applied to both a stationary mobile terminal and a moving mobile terminal.
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patent: 5717406 (1998-02-01), Sanderford et al.
patent: 5945948 (1999-08-01), Buford et al.
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George P. Yost and Shankari Panchapakesan; Improvement in Estimation of Time of Arrival (TOA) from Timing Advance (TA); IEEE International Conference on Universal Personal Communications, Florence, vol. 2, Oct. 5-9, 1998; pp. 1367-1372.
PCT International Search Report dated May 14, 1999.
Panchapakesan Shankari
Yost George P.
Eisenzopf Reinhard J.
Ericsson Inc.
Kincaid Lester G.
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