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4G RAN

1 month ago

Bengaluru, India Mavenir Full time
Role Summary

Responsible 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

Going through 3GPP standards, architectural and design documents to come up with thorough and in-depth test plans for testing LTE/5G eNodeB functionalities.Ability to build test setups as per the requirements of the test case.Executing test cases and validating the test status based on the expectations for the test case.Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network.Using the test expertise and identifying overall improvements and enhancements which are possible on the system.Debugging field data and identifying potential problems and re-creating the same in the lab.Log analysis, Performance, Capacity and Soak testing

Job Requirements

Good Knowledge on E2E system Architecture of LTE/5G RAN.Self-starter who likes debugging complex issues and takes 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 work experience of testing LTE eNodeBs.Hands on experience in using test tools including but not limited toUE simulators like TM500UE debuggers like QXDMDelay Simulators such as RLS2100Application traffic generators like iPerf, TeraVM, DiversifeyeKnowledge of message flows and parameters used in the messages for LTE/5G procedures.Understanding of different 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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