System and method for mobile telephone location measurement usin

Details System and method for mobile telephone location measurement usin System and method for mobile telephone location measurement usin

1997-07-30

1999-11-16

Hudspeth, David R.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455457, 342450, 342357, H04M 1100

Patent

active

059873299

ABSTRACT:
A system and method for improving the accuracy of a location measurement within a telecommunications system is disclosed. A combination of Time Difference of Arrival (TDOA) and Timing Advance (TA) location measurement techniques enables Automatic Location Identification (ALI) with minor modifications to the telecommunications system, whereby the combination exhibits reduced measurement error and resolution of ambiguities present in either technique separately.

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patent: 5883598 (1999-03-01), Parl et al.
Drane et al, Positioning GSM Telephones, XP-000752570, IEEE Communications Magazine, Apr. 1998, pp. 46-54.

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