Method for estimating time of arrival of received signals...

Details Method for estimating time of arrival of received signals... Method for estimating time of arrival of received signals...

2004-11-15

2008-10-14

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S139000, C375S340000, C370S319000, C370S330000, C370S342000, C342S150000, C455S502000

Reexamination Certificate

active

07436909

ABSTRACT:
A method estimates a time of arrival of a signal received in a wireless communication system. An energy in a frame of a received signal is measured to determine a block in the frame, the block representing a coarse time of arrival of the received signal. Multiple time-delayed versions of a template signal are combined with the block of the received signal to select a particular template signal. The particular template signal identifies a particular chip representing a fine time of arrival of the received signal.

REFERENCES:
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patent: 7039000 (2006-05-01), You et al.
patent: 2003/0231719 (2003-12-01), Wreschner et al.
patent: 2004/0176119 (2004-09-01), Molisch et al.
patent: 2005/0184908 (2005-08-01), Richards
patent: 2008/0063036 (2008-03-01), Richards et al.
Kegen Yu et al: “UWB positioning for 1-5 wireless embedded networks” Radio and Wireless Conference, 2004 IEEE Atlanta, GA, USA Sep. 19-22, 2004, Piscataway, NJ, USA, IEEE, Sep. 19, 2004, pp. 459-462.
Gezici, S. Zhi Tian Giannakis, G.B. Kobayashi, H. Molisch, A.F. Poor, H.V. Sahinoglu, Z. : “Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks” IEEE Signal Processing Magazine, Jul. 2005, pp. 70-84.

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