Control device and radio communication device
AssigneeNEC Corporation
InventorTakuji Mochizuki
Life of this patent
Estimating the term…
Abstract
A control unit (control device) (12) is configured to be connectable to radio units (11-1 to 11-N), respectively, and each path unit (13) includes path units (13-1 to 13-N) having a first input path (L1) and a second input path (L2). The first input path (L1) is a path on which a corresponding DPD unit (14) is provided and through which a transmission baseband signal compensated for the non-linear distortion is input to a corresponding radio unit (11). The second input path (L2) is a path through which a transmission calibration signal for calibrating a path and amplitude deviation between the radio units (11) is input to the corresponding radio unit (11) without passing through the DPD unit (14).
Claims9
A control device comprising:
- hardware including at least one processor and at least one memory;
- a plurality of distortion compensation units implemented at least by the hardware and that correspond to a plurality of radio units, each of the distortion compensation units being configured to compensate for non-linear distortion with respect to a transmission baseband signal input to a corresponding radio units using reverse characteristics of non-linear distortion characteristics in the corresponding radio units;
- and
- a plurality of path units implemented at least by the hardware and that are connected to the plurality of radio units, respectively, each of the path units including a first input path and a second input path, wherein
- the first input path is a path on which the corresponding distortion compensation units is provided and through which the transmission baseband signal compensated for the non-linear distortion is input to the corresponding radio units, and
- the second input path is a path through which a calibration signal for calibrating a phase and amplitude deviation between the radio units in the plurality of radio units is input to the corresponding radio units without passing through the distortion compensation units.
Dependencies are inferred from the claim text.