| 摘要 |
A processing device (40) for processing an analog complex input signal representing a sequence of OFDM symbols in a radio-receiver (10). The processing device comprises a plurality of processing paths (P1-P), each comprising a complex mixer and an analog channel-selection filter (CSF1-CSF). Furthermore, the processing device comprises an oscillator unit (70) arranged to provide local oscillator signals associated with the complex mixer (CM1-CM) of each processing path. A control unit (60) is adapted to receive control data and 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 (10). Furthermore, the control unit (60) is adapted to, for each of said at least one individual OFDM symbol, control the local oscillator signals associated with the complex mixers (CM1-CM) based on the determined subcarrier locations and passbands (110a-d, 310a-d) of the channel-selection filters (CSF1-CSF) such that each resource block allocated to the radio receiver (10) is frequency translated by a complex mixer (CM1-CM) of the processing paths (P1-P) to appear within the passband of the following channel-selection filter (CSF1-CSF). A corresponding method of processing the analog complex input signal is also disclosed.
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