RAN Engineer

We are looking for a Sr Ran Engineer with experience in cell planning and optimization processes.

Responsibilities:

• Radio trials study, execution and analysis;
• Vendor Upgrade support;
• The engineer should be responsible for supporting vendor upgrades and define the changes required in the code to support the changes to assure smooth support of the new version.
• Analysing system outputs based on the table below and provide a technical description of the changes in the new version;
• Analysis of the changes should be focused on the MOs (Managed Objects), parameters, counters, and KPIs that are relevant for SON;
• Analysis should include:
CM - Changes in the format, structure, naming convention, keys and contents of the parameters (For example: Moving from CSV to XML format, Changes in neighbor identification keys, Support new cell types – as LTE TDD, NBIoT or MTC cells, Changes parameters range of values, etc);
CM - Detection of new features that may affect existing modules (For example – new parameter on the neighbour level that SON’s ANR module may need to optimize too);
PM changes - Changes in counters that are involved in optimization;
PM changes - Changes in counters and KPIs that are used for performance analysis (Not affecting SON’s optimization modules);
Analyze the effect on the provisioning – Changes in the syntax of provisioning;
The engineer should learn deeply the current functionality of SON product –main modules, including the relevant parameters that are imported and changed by SON and the counters that are used by each module;
The engineer should get introduced with the databases used by SON to store the network configuration and statistical data used for optimization (MySQL, Mongo, Vertica);
In some cases, the engineer will need to analyze the operator’s design document of parameters in the new version to detect changes in policy and changed, new or excluded parameters that should be considered by SON.
Inputs
• (Must) Samples of CM data from customer labs or the commercial network;
• (Must) Samples of PM data from customer labs or the commercial network
• Vendor’s documentation (Ericsson – ALEX, Huawei – Hedex document, Nokia–Info browser) – vendor’s document will not be always available – in some cases reverse engineering may be required!
• Operator’s design document (Usually Excel spreadsheet that covers all the
parameters supported by the new version).
Outputs
• Provides design document defining all the changes above for the R&D teams using existing templates under product team supervision;
• Define changes in interfaces with the vendor platform for CM and PM collection;
• Define the changes in provisioning methodology, provisioning plan syntax, and interfaces for SON platform in the vendor’s specific environment;
• Define test strategy for QA team (Help on building testing environment using physical data and CM &PM data, define testing scenarios, help QA engineer to follow the process with R&D and the customer;
• Bi-weekly or monthly meeting with the customer to get updated on upgrade plans;
• Planning and effort estimation with R&D on the upcoming upgrades;
• Manage design review with R&D on the product’s design document;
• Participate in R&D’s design review, test planning, code review, and pre-release demo;
• Prepare release notes on the new version once it is supported;
• Help the local team on the deployment of the new version (Lab testing and FOA).

Requirements

• Knowledge of the radio parameters and optimization methods for the main vendors (At least 2 of the 3) – Ericsson, Nokia, Huawei (At least 3G; 4G – 2G; 5G advantage);
• Knowledge in SQL – advantage;
• Analysis of binary and text inputs using scripts (Perl, Python), Excel or tools as 010 editor, Textpad, Notepad, XVI32, XML marker, beyond compare, etc;
• Develop tools and methodologies for fast analysis of the inputs and detection of changes, new and missing data;
• At least 5 years of experience in radio optimization and cell planning in 2G 3G 4G.