5G RAN Developer
1 month ago
Role Summary
Design and develop 5G RAN gNodeBs and new products including cloud-based or internet-related tools.
Key Responsibilities
Responsibilities for the position include but are not limited to:
- Good understanding of 3GPP standards related to 5G RAN
- Develop design documents for 5G SA features.
- Analyze product logs, UE logs and network interconnect traces to identify any issues
- Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problem
- Debugging field data and identifying potential problems and re-creating the same in the lab
Job Requirements
- Good understanding of the functionality of CU-CP, especially of the N2, E1 and F1 interface.
- Good understanding of the 5G NR RRC protocol
- Good understanding of the functionality of CU-UP and the N3, E1 and F1-U interface.
- Good understanding of the 5G NR PDCP and SDAP protocols
- Knowledge of Go language
- Good understanding of the 5G NR L2 scheduler.
- Good understanding of the L2-L1 interface.
- Experience in debugging scheduling and throughput issues.
· Good understanding of the 5G NR EGTP, NRUP and RLC protocols
· Knowledge of the OAM layers in the CU/DU
· A good understanding of the DU-RU interface
· Good understanding of the 5G NR
· Good system-level knowledge of 5G NR in the DU or CU or both
- Good understanding of software engineering aspects – data structures, IPCs, system services (memory management, event handing), computer architecture fundamentals (caching, memory hierarchy)
- Exposure in running/porting legacy implementation to virtualized environment is a plus.
- Exposure to Netconf/Yang is a plus.
- Familiar with debugging tools (gdb), code management tools (CVS/GIT).
- Experience in analyzing packet captures in Wireshark and debugging throughput issues.
- Hands on experience in working in a Kubernetes environment.
- Hands on experience in analyzing UE logs
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