Digital front end and low PHY work for O-RAN radio units the part where amplifier efficiency is decided.
Responsibilities
Crest factor reduction, digital pre-distortion and the observation path that adapts it.
Filter chains, channelisation and fixed-point implementation on FPGA or ASIC.
Characterisation against EVM and spectral mask, on real amplifiers.
Technical Skills
DSP
DPD/CFR
OFDM
FPGA
Fixed point
MATLAB
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