Patent ID: 11863210
Assignee: NANOSEMI, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A power supply modulator to control electrical operation of a transmit chain, the power supply modulator comprising:
a receiver to receive one or more control signals; and
a regulator to regulate, based on the one or more control signals, power supply provided to a power amplifier of the transmit chain to underpower the power amplifier so that the transmit chain includes at least some non-linear behavior;
wherein the at least some non-linear behavior of the transmit chain, resulting from regulating the power supply based on the one or more control signals, is at least partly mitigated through digital predistortion performed by a digital predistorter on signals comprising an input signal, u, provided to the digital predistorter, and on another signal, provided to the digital predistorter, that depends on amplitude variations based on the input signal, u, wherein the variations of the other signal correspond to time variations in non-linear characteristics of the transmit chain.