RAN Performance Assurance Specialist, RAN Performance Assurance Section

1ヶ月前

Tokyo Rakuten Mobile Full time

Description

:

About Organization

E2E Performance & Capacity Division is responsible for ensuring Rakuten Mobile network End-to-End performance and/or capacity KPI are achieving the targets, providing the best customer experience, filing business requirement and align with Network Functions/Applications owners.

Job duties

The RAN Performance Assurance Section's top priority is to assess new software FOA for all product and technology of RMI networks, pushing for improved quality and performance.

Responsibilities

Analyzing network-level issues in 4G/5G and creating KPIs, counters, and feature requests for parameter tuning and overall network improvement.

Specific tasks

・Providing RAN equipment details based on the customer's selected RAN vendor.

・Working with the Rakuten RF team to standardize golden parameters for initial configuration.

・Implementing baseline parameters, conducting parameter/configuration audits, and suggesting parameter changes to improve KPIs and counters.

・Daily monitoring, analysis, and troubleshooting of key KPIs for LTE and VoLTE.

・Conducting RF tuning and troubleshooting using drive test logs analysis for SSVT and cluster optimization.

・Analyzing UE traces and providing parameter recommendations to improve major KPIs such as accessibility, retainability, mobility, and throughput.

・Conducting parameter/configuration audits and making changes to improve network performance.

・Conducting parameter and feature trials to improve major KPIs, traffic balancing, and mass event handling.

・Conducting SON parameter tuning to improve mobility KPIs and traffic balancing.

・Conducting trace analysis.

・Conducting FOA for different products under 4G/5G and small cells.

・Having strong knowledge of counters/KPIs for 4G/5G.

Minimum Qualification

・Bachelor's Degree (BS) in Engineering or a related field
・6+ years of experience in the mobile telecom field
・Experience in PCAP analysis and working with end-to-end mobile network analysis, including Radio/Core/Transport on 4G and 5G (5G SA preferred)
・Strong knowledge in analyzing drive test logs and L3 messages on 4G and 5G (5G SA preferred)
・Experience using different analysis tools like XCAL, Open signal, Xcap, etc
・Experience in quality KPIs and performance tracking
・Strong analytical and problem-solving skills

Preferred Qualification

・Programming experience in Python
・Experience in automation
・Good understanding of RF design principles
・Good understanding of 3GPP standards
・Ability to provide RAN equipment details based on the customer's selected RAN vendor

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