Patent ID: 8594213

Claim:
A processing device for processing an analog complex input signal representing a sequence of orthogonal frequency-division multiplexing (OFDM) symbols in a radio-receiver, the processing device comprising a plurality of processing paths, wherein each processing path comprises: a complex mixer configured to frequency translate the analog complex input signal based on a local oscillator signal associated with the complex mixer; and an analog channel-selection filter operatively connected to an output port of the complex mixer and configured to filter an output signal of the complex mixer; an oscillator unit configured to provide the local oscillator signal associated with the complex mixer of each of the processing paths; and a control unit configured to receive control data; determine, based on the control data, subcarrier locations, within at least one individual OFDM symbol of the sequence of OFDM symbols, of one or more resource blocks allocated to the radio receiver, wherein a resource block defines a nonempty set of adjacent subcarriers for each of a nonempty set of consecutive OFDM symbols; and for each of said at least one individual OFDM symbol, control the local oscillator signals associated with the complex mixers based on the determined subcarrier locations and passbands of the analog channel-selection filters such that each set of adjacent subcarriers, defined by the one or more resource blocks allocated to the radio receiver, within the OFDM symbol is frequency translated by a complex mixer of the processing paths to appear within the passband of the following analog channel-selection filter.