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

Claim 17:
18. The method of claim 17, wherein deriving the time-varying signal e comprises:
deriving the time-varying signal e satisfying a set of constraints that includes:
a first constraint in which e[t]≥h(|u[t]|), where h(⋅) defines a relation between instantaneous power of the input signal u and a power supply of the transmit chain,
a second constraint imposing maximal value and curvature bounds for the signal e, such that

e[t]≤E0, and |2e[t]−e[t−1]−e[t+1]|≤E2,

where E0 and E2 are values representative of operational characteristics of the power amplifier, and
a third constraint requiring that values of e[t] be as small as possible, subject to the first and second constraints.