Estimation of a signal delay

Details Estimation of a signal delay Estimation of a signal delay

2007-05-15

2007-05-15

Kincaid, Lester G. (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456600, C455S446000, C455S067160

Reexamination Certificate

active

10727113

ABSTRACT:
The invention relates to a method for estimating a delay of a signal received at a mobile station MS from a specific network element BS1, BS2of a network for determining the location of the mobile station. In order to reduce the false alarm ratio and to increase the acquisition probability, it is proposed that the method comprises estimating the delay within a search window. The search window is determined based on location information available for the specific network element BS1, BS2and on a known distance of the mobile station MS to at least one other network element BS0, BS1. The invention relates equally to a corresponding mobile station MS, to a corresponding network element BS0, and to a communication system comprising at least one mobile station and at least two network elements.

REFERENCES:
patent: 6549545 (2003-04-01), Yamamoto et al.
patent: 6748224 (2004-06-01), Chen et al.
patent: 6760599 (2004-07-01), Uhlik
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patent: 1 164 383 (2001-12-01), None
patent: WO 01/25813 (2001-04-01), None
patent: WO 03/009613 (2003-01-01), None

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