| Patent Number |
Title Of Patent |
Date Issued |
| 7599978 |
Digital signal decimation by subspace projection |
October 6, 2009 |
| A digital signal, x(n) (where n is an integer), is decimated by determining a signal vector, y(k), of size M by partitioning samples of the digital signal, x(n) according to sampling phases of the samples. The signal vector, y(k), is projected onto an N-dimensional sub-space, wherein |
| 7599454 |
Method and apparatus for symbol alignment in diversity signal reception |
October 6, 2009 |
| Methods and apparatus taught herein provide for symbol alignment between diversity signals in a communication receiver. For example, in one embodiment, a method of symbol aligning diversity signals in a communication receiver comprises generating diversity sample sets for a received |
| 7587009 |
Synchronization and estimation of a transmission channel |
September 8, 2009 |
| A method of estimating a transmission channel (302) comprises receiving a signal burst, which includes a sequence of training symbols; and determining (305) a desired synchronization position (p) of the training sequence with respect to the received signal burst. The method further c |
| 7555079 |
Method and corresponding arrangement for DC offset compensation using channel estimation |
June 30, 2009 |
| A method of determining a DC offset in a communications signal received via a communications channel, the communications signal comprising a sequence of training symbols. The method comprises providing a channel estimate of the communications channel based on said sequence of training |
| 7545893 |
Single antenna interference cancellation via complement subspace projection in spatial-temporal |
June 9, 2009 |
| Interference rejection in a wireless communication system involves determining a complement spatial-temporal signal subspace that is complement to a spatial-temporal signal subspace of an interference signal included in a received signal. The received signal is projected onto the com |
| 7289583 |
Method of and apparatus for single antenna interference rejection through relaxation |
October 30, 2007 |
| A method of and apparatus for single antenna interference rejection (SAIR) relaxation. Interference in a received signal is reduced by performing synchronization and whitening of the received signal. The synchronization and whitening includes performing the following steps at least one t |
| 7212593 |
Method of and apparatus for noise whitening filtering |
May 1, 2007 |
| A method of and apparatus for reducing interference in a received signal. A normalized noise correlate is determined using the received signal and a first channel estimate of the received signal. Conditional whitening-filter settings are determined using the normalized noise correlat |
| 7079601 |
Efficient channel estimation in a digital communications system |
July 18, 2006 |
| A channel estimation method and apparatus for GSM/EDGE digital communications systems utilizing previously unexploited properties of GSM/EDGE training sequences to permit a more efficient initial channel estimation for equalizer operation and for joint synchronization and equalizer w |
