| ELEKTROBIT SYSTEM TEST OY Patent applications |
| Patent application number | Title | Published |
|---|
| 20120071107 | Over-The-Air Test - A simulated radio channel is shifted with respect to a plurality of antenna elements coupled with an emulator for communicating with a device under test by using different directions for the simulated radio channel in an anechoic chamber. | 03-22-2012 |
| 20110311007 | Method and an Apparatus for Forming Signal Estimates - The invention relates to a method and a device for extracting the signal components and/or the interference components. In the invention a channel measurement signal is received, the signal is filtered, the filtered signal is reconstructed, the reconstructed signal is subtracted from the channel measurement signal for obtaining a residual signal (r-s); and the residual signal is fed back to be combined with the channel measurement signal. | 12-22-2011 |
| 20110191090 | OVER-THE-AIR TEST - A testing system comprises an emulator having a simulated radio channel for communicating therethrough with the electronic device. The testing system comprises a plurality of antenna elements coupled to an emulator which forms a beam of a signal of a path of a simulated radio channel with at least two antenna elements of the plurality of antenna elements in an anechoic chamber. | 08-04-2011 |
| 20110189962 | OVER-THE-AIR TEST - A testing system optimizes a cost function of a theoretical spatial cross correlation and a spatial correlation obtained with antenna elements for determining weights of the antenna elements, and forms a beam of a signal of at least one path of a simulated radio channel with at least two antenna elements of a plurality of antenna elements coupled to an emulator in an anechoic chamber. The at least two antenna elements are capable of polarizing the beam in a known manner. | 08-04-2011 |
| 20110188595 | Simulation of Multi-Antenna Radio Channel - A radio channel simulation system comprises a plurality of input buses for receiving a beam-specific transmit signal. A transformation module transforms a channel model from antenna domain to beam domain by using a transformation algorithm and beam forming weights. The channel model represented in the beam domain is inputted into a processing module which processes the beam-specific transmit signals according to the channel model represented in the beam domain. | 08-04-2011 |
| 20100177836 | Simulation of Multi-Antenna Radio Channel - A radio channel simulation system comprises a plurality of input buses for receiving a beam-specific transmit signal. A transformation module transforms a channel model from antenna domain to beam domain by using a transformation algorithm and beam forming weights. The channel model represented in the beam domain is inputted into a processing module which processes the beam-specific transmit signals according to the channel model represented in the beam domain. | 07-15-2010 |
| 20100167640 | Communication Between Transmitter and Receiver - A frequency manipulator comprises a frequency transformer and a frequency retransformer. The frequency transformer receives each of at least one signal in a known band from at least one transmitter, transforms the known band of each signal into a predetermined band and forwards each signal in the predetermined band to a channel device. The frequency retransformer receives each signal from the channel device, retransforms the predetermined band of each signal to the known band and forwards each signal in the known band to at least one receiver. | 07-01-2010 |
| 20100093300 | Data Collection and Simulation - A receiver receives at least one radio frequency band. A signal processor separates a signal space associated with the at least one signal in the at least one radio frequency band and a background space associated with interference and noise in the at least one radio frequency band. For a simulation, a memory stores the environment data of the at least one radio system based on the background space under control of the signal processor. | 04-15-2010 |
| 20090122899 | Method, Device, Arrangement, Transmitter Unit and Receiver Unit for Generating Data Characterising Mimo Environment - A method and arrangement for generating data for transmitter or receiver simulations where the generated data includes Multiple Input Multiple Output radio environment (MIMO) characteristics. The arrangement includes a model data ( | 05-14-2009 |
| 20090116456 | Method, Apparatus, Analyser and Computer Program of Searching for Propagation Paths - A radio channel is formed for estimation, the radio channel including dominant paths from a digital impulse response estimate of a channel relating to a radio system. A divider divides the impulse response estimate temporally into at least two subsignals. An analyser determines whether a distribution of the amplitude values of at least one subsignal is gaussian or non-gaussian. A searcher searches for a highest amplitude value in each subsignal, which is determined to be non-gaussian. A generator may form a radio channel for a radio channel simulation, the radio channel including each propagation path corresponding to the highest amplitude value in each subsignal determined to be non-gaussian. | 05-07-2009 |
| 20080215300 | Simulation of Multi-Antenna Radio Channel - The invention provides a device for simulating a multi-antenna radio channel, a module and a method. The device comprises channel modules for incorporating propagation effects into channel signals which represent radio signals propagating along propagation paths, which channel modules are electrically connected to neighbour channel modules for forming an (m,n) array configuration. The (m,n) | 09-04-2008 |
