RAN Engineering

Proficiency Level 1
Basic Understanding

Ability to identify and resolve basic software related anomalies.

Ability to identify and resolve performance related issues.

Ability to isolate and perform system level hardware troubleshooting.

Knowledgeable in basic call processing functionalities and be able identify any deviation from the standard.

Proficiency Level 2
Working Experience

Knowledgeable in provisioning and system growth.

Proficient in outage investigation.

Be able to recover a system quickly from an outage condition.

Be able to exchange knowledge among members of the same or different organizations.

Knowledgeable about the protocols running on all 3GPP interfaces inside RAN including air interface and be able to identify any issue on them using commercially available protocol analyzers.

Proficiency Level 3
Extensive Experience

Be able to resolve complex call processing issues.

Be able to isolate an issue to a specific network element by analyzing performance counters/indicators.

Be able to capture and analyze call traces and system logs to identify a potential issue.

Have proficiency in Unix/Linux systems and high level programming languages to be able to analyze system data.

Possess in-depth knowledge in 3GPP spec associated with 3G as well as 4G wireless technologies.

Be able to analyze alarm data as a part of pro-active network monitoring and provide guidance accordingly to identify and rectify vulnerable areas for improved customer experience.

Proficiency Level 4
Subject Matter Expert

Be able to develop training material and deliver them to peers, customers, and technicians.

Be able to continue to recover a system after exhaustion of all the available standard procedures.

In-depth understanding in call flow/signaling sequences and associated protocols being used for the newly introduced technologies (e.g., VoLTE, ePTT, etc.).

In-depth understanding in interaction between 3G and 4G network encountered during various procedures (e.g., cSFB, IRAT HO, redirection, etc.).

Possess end to end view of the network and RAN interaction with rest of the network.

In-depth understanding of the RAN parameters and be able to optimize them for improved customer experience.


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