Ericsson Careers

Master Thesis: Virtual Reality latency experience

Luleå, Sweden
Students and Young Professionals

English (US)

Job Description

Date: Feb 12, 2019

Job Summary:

Virtual and Augmented Reality (VR and AR) are generally available services now. Several consumer headsets are on the market and Apple, Google, and Microsoft are all pushing for different technologies to put this in the hands of developers and end users alike. The traditional usage of these services has so far not been very network friendly, rendering and control signaling is all done locally on the end user device. However, this is starting to change with more capable access networks on the horizon, 5G for example, and GPU hardware producers pushing for having their solutions everywhere in these networks.  
AR with distributed or off-loaded rendering is one of the most demanding online services. High demand on extremely low latency between the headset and any kind of online server together with usually high bitrate video transmission creates a unique problem to solve for the network providers. To create a good environment for such a service as VR or AR, one needs to know about how the network conditions affects the end users. This can be done by degrading a VR experience in a controlled way by simulating network degradations and applying the effects on a locally hosted server and renderer. This is then tested by a set of test persons that will describe their experience and the testing environment will produce logs that can be analyzed in addition to the subjective data.  
To reliably assess the effects of networking degradations repeatedly on the VR service, a testing environment has been created at Ericsson Research. This environment contains three scenarios that test different aspects of the VR experience.  
In this project you will explore the effects of adding a controlled, but troublesome, network between the VR-headset and the controlling server. Latency and packet loss will be added in the mentioned environment and you will evaluate the effects of different kind of access technologies. Depending on the interests and proficiencies of the applicant, the end goal of the thesis might be slightly different.  With a more network focused student, emphasis can be put on evaluating and enhancing the networking engine in the test environment. Meanwhile, a student with more interest in the user experience side of the project can perform more subjective testing and look into the perceptual differences between this and

other, similar, systems.


Ericsson Research

In the research area Artificial Intelligence (AI) we study and develop Machine Learning and Artificial Intelligence technologies for intelligent systems. Our research spans technologies for intelligent automation, novel applications of ML/AI to differentiate Ericsson's portfolio and the study and development of frameworks for AI in products and services. We work with business units and market areas, and collaborate with academia and research institutes. The Architectures and Frameworks group in Luleå, Sweden, have the next generation AI platform, tools and frameworks as main focus. We aim to ensure a software stack that is; built based on modern design paradigms, make efficient use of modern hardware and allow for easy deployment and observability of running systems. Results are most often prototypes where concepts are tested and demonstrated but we also secure IPRs and run trials with our stakeholders.

Key Qualifications:

  • The successful applicants will be self-motivated, M.Sc. students or equivalent with an education in computer communication and/or perceptual psychology. Practical experience is not required. 
  • The work is research oriented, so ability to learn quickly, work independently and identify problems and solutions is necessary. 
  • Courses in perceptual psychology, computer networking and experience with Unreal Engine IDE are considered valuable merits.
  • Some programming proficiency, preferably C and Python, are also important.    
  • Strong analytical skills and ability to acquire new knowledge and apply it in the job  
  • Good communication skills in written and spoken English 
  • Ability to formulate problems and solve them independently  
  • Creativity and ability to work independently
  • Ability to develop and drive new ways of working, to produce research results in a more efficient way 
  • Deciding & Initiating Action 
  • Working with People 
  • Presenting & Communicating 
  • Applying Expertise & Technology 


Work location: Luleå.  Please state in your application when you can start.


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Primary country and city: Sweden (SE) || || Luleå || Stud&YP

Req ID: 270999