Separating mixed signals in a cellular environment

Details Separating mixed signals in a cellular environment Separating mixed signals in a cellular environment

2006-05-03

2010-11-02

Nguyen, Lee (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S067110, C704S203000

Reexamination Certificate

active

07826870

ABSTRACT:
Separating mixed signals includes receiving the mixed signals from signal sources transmitting from a number of cells. A signal source is operable to transmit a source signal, and a mixed signal comprises at least a subset of the source signals. A complex mixing matrix is established from the mixed signals. The complex mixing matrix describes mixing the source signals to yield the mixed signals. The number of cells is estimated from the mixed signals. The mixed signals are separated using the complex mixing matrix and the estimated number of cells.

REFERENCES:
patent: 6236862 (2001-05-01), Erten et al.
patent: 6424960 (2002-07-01), Lee et al.
patent: 7133699 (2006-11-01), Owechko et al.
patent: 2002/0176485 (2002-11-01), Hudson
patent: 2003/0061035 (2003-03-01), Kadambe
patent: 2004/0100897 (2004-05-01), Shattil
patent: 2006/0094373 (2006-05-01), Hottinen
patent: 1 482 659 (2004-12-01), None
patent: WO 98/10537 (1998-03-01), None
patent: WO 01/89167 (2001-11-01), None
Notification of Transmittal of the International Search Report or the Declaration (PCT Rule 44.1) mailed Sep. 29, 2004 (13 pages) re International Application No. PCT/US2004/008948, Mar. 23, 2004.
Lloyd J. Mason, “Detection of Digital Signals with Antenna Arrays Using Estimation,” 1994 Canadian Conference on Electrical and Computer Engineering, Conference Proceedings, (Cat. No. 94TH8023), IEEE New York, New York, vol. 1, pp. 380-383, XP00229623, ISBN: 0-7803-2416-1, Sep. 25, 1994.
U.S. Appl. No. 10/421,167 entitled, “System and Method for Separating Signals Received by an Overloaded Antenna Array”, 25 pages specification, claims and abstract, 5 pages of drawings, inventors Yuri (nmi) Owechko et al, filed Apr. 22, 2003.
PCT Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration with attached PCT International Search Report and Written Opinion of the International Searching Authority in International Application No. PCT/US 2007/010529, dated Jan. 30, 2008, 13 pages.

Affiliated with

Also associated with

Rating

Separating mixed signals in a cellular environment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separating mixed signals in a cellular environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separating mixed signals in a cellular environment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4251354