Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2005-11-29
2005-11-29
Tran, Pablo N. (Department: 2685)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S107000, C455S272000, C342S378000
Reexamination Certificate
active
06970722
ABSTRACT:
A method and implementation of wireless communication are disclosed in which wireless signals are exchanged between at least one remote client and a directional antenna array associated with a wireless network, wherein the directional antenna array includes a plurality of antenna elements. A statistical matrix analysis is performed for each of the at least one client and the antenna array, in order to locate angles associated with directions of each client with respect to the antenna array. Values are determined for weighting factors for RF signals of each of the respective plurality of antenna elements, so as to create predetermined phase differences between the signals of the plurality of antenna elements. The predetermined phase differences are used to direct at least one null toward at least one source of interference, so as to avoid signal interference.
REFERENCES:
patent: 5579016 (1996-11-01), Wolcott et al.
patent: 6064338 (2000-05-01), Kobayakawa et al.
patent: 6166689 (2000-12-01), Dickey et al.
patent: 6166690 (2000-12-01), Lin et al.
patent: 6211841 (2001-04-01), Smith et al.
patent: 6392596 (2002-05-01), Lin et al.
patent: 6531957 (2003-03-01), Nysen
patent: 2004/0027268 (2004-02-01), Langsford
patent: 2004/0131038 (2004-07-01), Kim et al.
Cisco Technology Inc.
Tran Pablo N.
Tucker Ellis & West LLP
LandOfFree
Array beamforming with wide nulls does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Array beamforming with wide nulls, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Array beamforming with wide nulls will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3515066