Apparatus for data transmission path detection

Details Apparatus for data transmission path detection Apparatus for data transmission path detection

2007-12-25

2007-12-25

Tran, Khanh C. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

10774046

ABSTRACT:
A method and apparatus for detecting paths of a received signal by analyzing a delay power profile of the received signal comprises a detection of peaks in the delay power profile by a peak detector having a threshold that is set based upon the noise environment. Peaks detected by the peak detector are passed to a data path detector having second threshold set at a power level higher than the threshold in the peak detector. In one embodiment, a third threshold is set within a filter to suppress secondary maxima created by the generation of the delay power profile. The detected paths may set in a rake type receiver.

REFERENCES:
patent: 7142586 (2006-11-01), Reial
patent: 2003/0235241 (2003-12-01), Tamura
patent: 2004/0071193 (2004-04-01), Atarashi et al.
patent: 2004/0132443 (2004-07-01), Klein et al.
patent: 0 989 685 (2000-03-01), None
patent: 1 148 657 (2001-10-01), None
patent: 1 170 876 (2002-01-01), None
Bejjani, Elie, Jean-Francois Bouquier, Benoit de Cacqueray, “Adaptive Channel Delays Selection for WCDMA Mobile System,” IEEE Alcatel Corporate Research Center, © 1999, pp. 203-207, (5 pages).
Elders-Boll, Harald, “Simplified Interference-Based Threshold Rule for Delay Selection in DS-CDMA Systems,” IEEE Synopsys, Professional Services Group, © 2000, pp. 77-81, (5 pages).
Miyatani, Tetsuhiko, Kenzo Urabe, and Yoshihiko Akaiwa, “A Reduced-Complexity Path Timing Detection Method for DS-CDMA,” IEEE, © 1998, pp. 357-361 (5 pages).

Affiliated with

Also associated with

Rating

Apparatus for data transmission path detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for data transmission path detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for data transmission path detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3896408