- Paris, Île-de-France, France
- Hybrid
- Full-time · Mid
The role involves developing and optimizing physical-layer and fronthaul processing for an O-RAN 7.2x system, from algorithm design and simulation to real-time implementation and integration with radio units.
Responsibilities
- Developing the 5G uplink receiver chain: channel estimation, interpolation, MMSE equalisation, MIMO detection, LLR computation and LDPC decoding.
- Implementing PRACH detection, timing estimation and beamforming for massive MIMO.
- Processing O-RAN 7.2x C-plane and U-plane traffic, including eCPRI timing windows and IQ compression.
- Implementing real-time L1 functions in C on Linux and accelerating compute-intensive kernels with CUDA, DSP or SIMD.
- Building the eCPRI datapath with DPDK using poll-mode I/O, rte_flow, dedicated queues, zero-copy buffers and hardware timestamps.
Requirements
- Engineering degree
- Master of Science
- PhD
- Telecommunications
- Applied mathematics