Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2007-10-09
2007-10-09
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S349000
Reexamination Certificate
active
10729070
ABSTRACT:
Techniques for deriving eigenvectors based on steered reference and used for spatial processing. A steered reference is a pilot transmission on one eigenmode of a MIMO channel per symbol period using a steering vector for that eigenmode. The steered reference is used to estimate both a matrix Σ of singular values and a matrix U of left eigenvectors of a channel response matrix H. A matrix Ũ with orthogonalized columns may be derived based on the estimates of Σ and U, e.g., using QR factorization, minimum square error computation, or polar decomposition. The estimates of Σ and U (or the estimate of Σ and the matrix Ũ) may be used for matched filtering of data transmission received via a first link. The estimate of U or the matrix Ũ may also be used for spatial processing of data transmission on a second link (for reciprocal first and second links).
REFERENCES:
patent: 7039001 (2006-05-01), Krishnan et al.
patent: 2006/0023666 (2006-02-01), Jalali et al.
patent: 101 62 548 (2003-07-01), None
Gaal Peter
Ketchum John W.
Wallace Mark S.
Bayard Emmanuel
Franks Ross L.
Nguyen Thien T.
QUALCOMM Incorporated
Rouse Thomas R.
LandOfFree
Derivation of eigenvectors for spatial processing in MIMO... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Derivation of eigenvectors for spatial processing in MIMO..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Derivation of eigenvectors for spatial processing in MIMO... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3901334