Geforderte Skills
Jobbeschreibung
Contract role for a 2–8 years LTE/5G NR RAN Layer-1 (High PHY) engineer to design, implement, optimize and debug PHY algorithms for eNB/gNB (including vRAN/O-RAN variants). The role needs strong C/C++ and 3GPP PHY knowledge (modulation/coding, MIMO/beamforming, FFT/IFFT, channel estimation/equalization), plus experience with real-time embedded systems and fr
Project overview
Contract role for a 2–8 years LTE/5G NR RAN Layer-1 (High PHY) engineer to design, implement, optimize and debug PHY algorithms for eNB/gNB (including vRAN/O-RAN variants). The role needs strong C/C++ and 3GPP PHY knowledge (modulation/coding, MIMO/beamforming, FFT/IFFT, channel estimation/equalization), plus experience with real-time embedded systems and fronthaul (CPRI/eCPRI) and L1 acceleration.
Responsibilities
- Strong expertise in LTE/NR PHY Layer, DSP, RF, Antennas
- Expertise in modulation, coding (FEC, Low Density Parity Check/ LDPC, Turbo decoding), MIMO, beamforming, Complex I/Q sample processing, FFT / IFFT, Channel estimation & equalization, Modulation / demodulation
- Proficiency in C/C++, MATLAB, real time embedded systems, FPGA/ASIC/GPU/ based programming
- Experience with fronthaul (CPRI/eCPRI) and L1 acceleration
- PHY/RF software development experience
- Additional years of driving delivery of 4G/5G L1 programs
- Design and implement LTE/NR PHY algorithms and procedures
- Review and Mentor high performance L1 teams towards delivery excellence in the following
- Optimize L1 for latency, throughput, and CPU/DSP/GPU/FPGA utilization
- Interface with Radio/RF, L2, and fronthaul subsystems
- Debug PHY issues using logs, IQ capture, and lab equipment
- Ability to drive large scale 4G/5G L1 product development, sustenance and customer support programs involving multiple variants of eNodeBs/gNodeBs in various forms including vRAN/ORAN/custom
Requirements
- LTE/NR PHY Layer (L1 / High PHY)
- RAN (eNodeB/gNodeB)
- 3GPP specifications (LTE/NR PHY)
- C/C++ programming
- DSP fundamentals for wireless PHY
- Modulation/demodulation
- Channel coding/FEC (LDPC, Turbo decoding)
- MIMO and beamforming
- Complex I/Q sample processing
- FFT/IFFT
- Channel estimation and equalization
- Real-time embedded systems
- Fronthaul: CPRI/eCPRI
- L1 acceleration and optimization for latency/throughput/CPU utilization
- PHY/RF software development
- Debugging PHY issues using logs and IQ capture
Project details
Bengaluru (Manyata) or Delhi NCR.
- Start: flexible
- Remote: onsite
- Location: India, IN
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