Patent application number | Description | Published |
20100097153 | Switched Modulation of a Radio-Frequency Amplifier - Switch-modulation of a radio-frequency power amplifier by-representing the input signal by the I-signal ( | 04-22-2010 |
20100201444 | Signal Modulation for Switched Mode Power Amplifiers - In a device ( | 08-12-2010 |
20110148518 | DYNAMIC RANGE IMPROVEMENTS OF LOAD MODULATED AMPLIFIERS - The present invention relates to methods and devices to control and operate the functionality of a power amplifier system ( | 06-23-2011 |
20120139776 | Obtaining a Calibration Parameter for an Antenna Array - Embodiments herein include a method for obtaining a calibration parameter for an antenna array. The antenna array comprises a first and a second radio module with respective associated antennas, wherein both radio modules comprise a main transmitter and a connected calibration receiver or both radio modules comprise a main receiver and a connected calibration transmitter. The method comprises: injecting a first calibration signal in the first radio module and measuring a first response to the first calibration in the first radio module. This injecting and measuring is repeated for all combinations of the first and second radio modules. Finally, a numerical value is calculated using the responses; a calibration parameter is calculated based on the calculated numerical value. Embodiments herein also include a corresponding antenna array, computer program and computer program product. | 06-07-2012 |
20130163512 | MULTI-BAND CREST FACTOR REDUCTION - Clipping a widely-separated, multi-carrier signal is effectively performed without having to use a high sampling speed. Clipping is performed in a first stage at a combined signal level, but with a predetermined carrier separation of at least twice the channel bandwidth (2CBW), followed by repositioning the carriers at baseband zero frequency. After clipping, carriers are placed at their respective center frequencies with full carrier separation reintroduced in a second stage. Iterative clipping stages smooth out signal reshaping and re-settled amplitudes for combined carriers. | 06-27-2013 |
20130214965 | Obtaining a Calibration Parameter for an Antenna Array - Embodiments herein include a method for obtaining a calibration parameter for an antenna array. The antenna array comprises a first and a second radio module with respective associated antennas, wherein both radio modules comprise a main transmitter and a connected calibration receiver or both radio modules comprise a main receiver and a connected calibration transmitter. The method comprises: injecting a first calibration signal in the first radio module and measuring a first response to the first calibration in the first radio module. This injecting and measuring is repeated for all combinations of the first and second radio modules. Finally, a numerical value is calculated using the responses; a calibration parameter is calculated based on the calculated numerical value. Embodiments herein also include a corresponding antenna array, computer program and computer program product. | 08-22-2013 |
20140016682 | RADIO MODULE, RADIO ASSEMBLY AND CORRESPONDING METHOD - A radio module is disclosed that includes a baseband device, a layer device, and a multi radio antenna. The baseband device is arranged to perform digital modulation and/or demodulation. The baseband device provides a data connection available to a digital system using the radio module for radio communication. The multi radio antenna includes an analogue radio device arranged to perform analogue signal processing, and an antenna array connected to the analogue radio device. The layer device is arranged to map each baseband device to one or more of the at least one multi radio antennas, and the radio module is connectable to a second equivalent radio module. A corresponding radio assembly and method are also disclosed. | 01-16-2014 |
20140106691 | AAS Transmitter Distortion Improvement - The invention provides a method for processing signals in a radio transmission apparatus ( | 04-17-2014 |