Cloud RAN Developer

4 weeks ago

Ottawa, Ontario, Canada Ericsson Full time

About this Opportunity

We are seeking a skilled Cloud RAN Developer to join our team at Ericsson. As a key member of our Cloud RAN DU Baseband function development team, you will be responsible for developing and implementing 3GPP specifications, algorithm design, and test design.

Key Responsibilities

  • Implement NR Scheduler function and 3GPP Standards related to RRM, MAC, RLC, PDCP
  • Contribute to development of RRM functions such as beamforming, massive MIMO, carrier aggregation, dynamic spectrum sharing, scheduling, link adaptation, power optimization in L2 scheduler
  • Full-stack virtualization of the 5G NR DU on COTS HW
  • Develop embedded real-time software development running in cloud-based infrastructure
  • Systemization, implementation, and testing of 5G Cloud RAN Baseband features related to L2 scheduler in CR DevOps
  • Troubleshooting BB scheduler and L2 stack
  • Contribute to the architectural evolution of the BB L2 Scheduler SW
  • Design new algorithms for baseband features, systemize the solution, implement in the product, and help with testing the solution in the lab, over the air, and in operator's network
  • Other areas that you may contribute to:
  • Realization of machine learning base solutions in Ericsson Cloud RAN products
  • Work with Kubernetes pods and docker containers on the far edge
  • Define requirements, lab setup, and test cases; analyze and characterize the result and customer trouble reports.
  • Work on open interfaces (e.g F1, X2/Xn, A1, 01, LLS...)

Requirements

  • BSc, MSc, or PhD degree in Computer Science or Electrical Engineering with strong background in wireless communications and minimum 3 years of experience in software/system engineering in telco
  • Proficiency in C/C++ and embedded programming
  • Familiarity with Python, MATLAB, Bash, JSON, YAML, XML, protobuf, gRPC
  • Detailed knowledge of Linux
  • Solid understanding of NR & LTE 3GPP specifications, especially in the areas of Radio Resource Management, MAC/RLC/PDCL/Physical Layer, and Mobility.
  • Experience in developing/implementing RAN features such as beamforming, massive MIMO, carrier aggregation, dynamic spectrum sharing, scheduling, link adaptation, power allocation, energy efficiency, etc.
  • Experience with real-time embedded development
  • Familiarity with cloud-native applications (Microservices, Docker, Helm, Kubernetes)
  • Familiarity with open specifications such as ORAN
  • Familiarity with Machine Learning techniques such as reinforcement learning, federated learning, transfer learning, deep learning, etc.
  • Familiarity with software content management tools such as git and CI/CD tools such gerit, jenkins, gitlab, spinnaker

Why Ericsson?

At Ericsson, you'll have an outstanding opportunity to use your skills and imagination to push the boundaries of what's possible. You'll be challenged, but you won't be alone. You'll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.

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