Role:
RF Engineer
Location:
Tokyo, Japan
Detailed roles & responsibilities:
Create a preliminary RF design
Design a link budget including but not limited to the path loss & cell radius on a theoretical basis using the planning tools.
This will provide the maximum allowable path loss & will help to calculate the cell radius within a specified cluster.
On the basis of the arrived cell radius, the design engineer will calculate the number of sites required within a cluster on a theoretical basis.
Carry out the CW measurement per clutter & model tuning.Create a Nominal Planning
Incorporate the existing active cells and friendly site database from local operator including site co-ordinates, height & azimuth of antennas during the planning of the new site/sector addition/carrier/technologies/Pico cells etc.
Gather all the details of the new cells addition which are planned to be incorporated in the designInput from customer team for any hotspot sites
Create a search ring to be released to the survey teams
Carry out a coverage prediction for the new site/sector/carrier/technologies with details like coverage, quality as well as traffic, loading before finalizing addition in network.
Create the final RF designIncorporate the recommendation from the site survey, construction & engineering teams in the final RF design.
Create preliminary RFDS (Radio Frequency Data Sheet) based on pre-defined template.
Update work orders if applicable.
Track site progress and provide weekly progress update.
Attend meeting with Site Development Group, Construction and RF engineering as needed.
Review drawing depicting the new site configuration and red-line discrepancies that deviates from preliminary RFDS.
Verify the sites RF configurations in planning tool, Database updated with accurate information.
Update final RFDS after red-line discrepancies are incorporated in the design
Modify plumbing diagrams based on site requirement and attach it to the RFDS.
Provide RAN equipment details as per the customer selected RAN vendor
Work with Rakuten RF Team to standardize golden parameter for initial configuration.
Implementing baseline parameter, Parameter /Configuration Audit, suggesting parameter changes to improve the KPI's and counters.
Daily Monitoring, Analysis, Troubleshooting Key KPIs for LTE and Volte.
RF tuning & troubleshooting using Drive test logs analysis for SSVT, Cluster Optimization and Acceptance.
UE trace analysis and parameter recommendations to Improve Major KPI (Accessibility, Retainability, Mobility, Throughput)
Parameter/Configuration Audit and changes parameter to improve network performance.
Parameter and feature trail to improve major KPI, traffic balancing, Mass Event Handling.
SON parameter tuning to improve Mobility KPIs and traffic balancing.
Trace analysis.
Coverage and Quality Improvement at Hotspot, Highway, Major stations and handling VIP Complaints.
Qualifications:
Good experience in RF planning - Outdoor Design, Link Budget,
Good at strategy - Spectrum /#Sites /Radio HW req for forecasted subs/future growth plans
Detailed understanding of vRAN architecture, ORAN, Radio Products
Excellent understanding on Radio KPIs, counters, parameters, features
Good exposure to any one of the Radio planning tools (Atoll, Planet, Asset etc.
Minimum of 8 years' experience in RF Design & Optimization.
Detailed understanding of vRAN architecture, Open RAN principles & RAN automation.
Excellent understanding on Radio KPIs, counters, parameters & must have the ability to perform feature trials, worst cell analysis & issue Root cause analysis
Good knowledge on call flows (User & Signalling) & must have the ability to troubleshoot RAN issues in the network.
Good exposure to any one of the Radio planning tools (Atoll, Planet, Asset etc.)Must have the experience in working with any one of the CEM/geo location tools
Must be a fast learner, motivated & willing to work longer hours if required
Ability to perform Drive tests using third party tools & analyse the same(Coverage Analysis,L3 message analysis etc)
Interested candidates can send in your inquiries to
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