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Network Design Specialist - ESN RAN & E2E Performance

Flint UK Technology Services • APPLICATION • Somerset, Bristol, United Kingdom • 2d ago

Network Design Specialist - RAN & E2E Performance

Three days onsite in Bristol/Start: ASAP/3 months contract + possible extension Inside IR35

Your key accountabilities within the RAN & E2E Performance domain are:

Experties in UE log analysis, Wire shark tracing and E2E analysis.
Act as a lead for Capacity related evenets.
Indentifying the root cause and define measures to improve underperforming KPIs
Analysing Drive Test logs and Network protocol traces for underperformance & defects in ESN PTT over SRTP.
Investigate detected and reported Systematic issues within this element of the ESN Service.
Performance root cause analysis using multiple sources of data primarily from:
- UE Application events/L1/L2/L3 information
- Drive Test UE logs/Wireshark covering OSI L1-L7.

but also from:

ENodeB and CN protocol analysis.
3rd Party OTT (Over The Top) protocol traces.
Coverage data.
Capacity data.
OSS performance data
Change logs.
Outline and ensure peer teams capture and deliver RAN Design & Performance team requirements in their deliverables.

Technical Expertise:

Expert knowledge of UE logs analysis
Expert understanding of Acuver UE logging tools.
In depth knowledge of Mobile networks particularly 4G & Public Safety functionality over LTE with particularly deep understanding design and operation.
In depth knowledge of LTE & SIP signalling, PTT (push to talk), SRTP/DTLS troubleshooting & Optimisation.
Excellent understanding of Nokia and Ericsson RAN products.
Good understanding of 3GPP & ETSI specifications.
Good understding of DTLS/SRTP protols.
Extensive experience in mobile telecommunications industry in the role of a lead designer with business-critical, high-availability/high-throughput systems and networks.
- Able to provide technical solutions, processes definition for network performance & optimisation of 4G based RAN Macro network.
- Proven experience in defining and understanding KPI definitions, formula and measurements of radio networks
- Able to analyse in depth, drive test logs, wireshark traces and protocol analysers traces for 4G networks
- Good Knowledge of LTE parameters & timers.
- Familiarity with test software & devices (Nemo/TEMs/Accuver) & post processing tools (Actix).
- Experience of working with 3rd parties network/IT Suppliers.
- Experience of Nokia RAN.

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