Sequans Communications | Date: 2013-06-28
A transceiver for RF signals uses receiving circuitry to derive control signals to reduce undesired signal frequencies in the output of the transmitting circuitry.
Sequans Communications | Date: 2013-05-31
An envelope tracking amplifier for a transmitter has a voltage mapping linearly related to the square of the amplitude of the baseband signal.
Sequans Communications | Date: 2014-07-18
A method of providing a power supply of an amplifier of a wireless transmission system comprising, determining the power at an antenna when transmitting a signal to be transmitted by the amplifier, determining the modulation scheme for transmitting the signal, determining the frequency allocation of the signal to be transmitted, determining a transmit channel characteristic, and adjusting a parameter of the power supply of the amplifier based on the determining steps to maintain amplifier linearity.
Sequans Communications | Date: 2013-06-04
User equipment is provided for receiving an OFDM signal. The user equipment includes a plurality of carrier processing chains and a carrier aggregation module, aggregating the signals received on each carrier processed by the plurality of carrier processing chains. The aggregation module delivers a set of aggregated signals of the plurality of carrier processing chains at the input of a Fast Fourier Transform module of a PHY layer processing subsystem of the user equipment. The Fast Fourier transform module is able to process a size of data according to a predetermined rate depending on the aggregated bandwidth of the set of aggregated signals of the plurality of carrier processing chains, and the carrier aggregation module includes at least one frequency shifter for frequency shifting carriers.
Sequans Communications | Date: 2015-03-27
A method of transmitting data comprising choosing a transmit modulation scheme of the transmission, choosing a transmit parameter of the transmission, transmitting the data stream according to the chosen transmit modulation and transmit parameter such that data of the data stream is transmitted by the modulation scheme and the choice of transmit parameter.