RAN Network Expert
3 days ago
Job Summary
Mavenir is looking for a highly skilled RAN Network Expert to support initial compliance and ongoing preparation, testing, and monitoring of conformance to established quality assurance processes and standards for company products, services, and processes.
Key Responsibilities
- Develop thorough and in-depth test plans for LTE/5G eNodeB functionalities based on 3GPP standards, architectural, and design documents.
- Design and build test setups according to test case requirements.
- Execute test cases and validate test status based on expectations.
- Analyze system logs, test tool logs, and use this understanding for debugging issues and identifying root causes.
- Apply test expertise to identify overall improvements and enhancements.
- Debug field data and identify potential problems, re-creating them in the lab.
- Conduct log analysis, performance, capacity, and soak testing.
Requirements
Good knowledge of E2E system architecture of LTE/5G RAN.
Self-starter with a passion for debugging complex issues and a pride in finding issues on the device under test.
Knowledge of Virtualization, K8S, Cloud, and Radio products.
Thorough understanding of 3GPP specs covering PHY, MAC, PDCP, RLC, RRC, S1AP protocols.
Understanding of NBIOT, LTEM, and NTN networks is a plus.
Hands-on experience with testing LTE eNodeBs.
Experience in using test tools, including UE simulators like TM500, UE debuggers like QXDM, delay simulators like RLS2100, and application traffic generators like iPerf, TeraVM, Diversifeye.
Knowledge of message flows and parameters used in messages for LTE/5G procedures.
Familiarity with LTE/5G releases and features.
Familiarity with LTE/5G SON functionalities is desirable.
Familiarity with application layer optimizations; UDP, TCP traffic optimization, Video traffic optimization, etc.
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