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Master Thesis: 5G Smartphone Power Measurement and Energy Efficiency Study

Job Description

Date: Nov 22, 2019

Ericsson Research


Mobile Device Research

Technology leadership is essential for Ericsson’s success and the mobile device segment is one of the most aggressive technology drivers in the world with its extreme requirements on properties such as energy efficiency, cost, and size.

Ericsson Research is therefore exploring and developing cutting edge software and hardware solutions in the mobile device segment.

We use the collective term devices for equipment connecting, possibly indirectly, to our networks; e.g. smartphones, wearables, XR-glasses, implants, IoT sensors.


Ericsson Research

Ericsson Research (ER) is the central research organization within Ericsson. We are over 650 researchers in eight countries. Our mission is to provide Ericsson with system concepts, technology, and intellectual property, to secure long-term success and competitiveness of Ericsson.

World-class innovation is achieved through cooperation within Ericsson as well as with external partners, customers, universities, and research institutes.

The thesis work is expected to be carried out at, or in collaboration with the Device Platform Research unit, Ericsson Research, Lund, Sweden. The unit focuses on mobile device related research with the charter to create novel concepts and technologies, do proof-of-concept prototyping, be a strategic eco-system influencer, serve as a pool of expertise supporting strategy, business and standardization functions within Ericsson, and create strategically important intellectual property.


Thesis Description

Commercial 5G networks are starting to go live across the world. The first use cases are enhanced mobile broadband, which brings better experiences for smart phone users. Being able to download a full-length HD movie in seconds and share your wow-moments with friends – that’s just the beginning. 5G smart phones have already been available in 2019. However, the battery time of a 5G smart phone is still an issue. Understanding power consumption of a 5G smart phone is an important step to improve its battery time.

The project is to measure power consumption of 5G smart phones in the market.

The following steps are envisioned as part of the thesis work:

  • The power measurement will be performed under different scenarios/use cases with different phone settings and cellular data throughputs.
  • The measured data shall then be analyzed to investigate energy efficiency of the 5G smart phone.
  • Finally, a comparative study between 4G and 5G phones is to be done.
  • Analyze results of the tests and evaluate expected bandwidth gain.

Further analysis on the subject would be an appreciated extension.

The thesis will be concluded with a presentation for the Ericsson research team.



This thesis project aims at students in electrical engineering, computer science, computer engineering or similar.

The thesis project is only available to persons working towards a Master of Science degree.


Extent: 1 student

Location: Lund

Preferred Starting Date: January 2020


Are you interested?

Then send in your application (CV, current grades and cover letter written in English collated into one document) as soon as possible.

The application deadline is the 6th of December. The process will be ongoing, and we will let you know as soon as we can if you move forward. 

If you have questions, please contact Recruiter Emelie Nygård at


Description of the Company

Ericsson is a world leading provider of communications technology and services. Our offerings include services, consulting, software and infrastructure within Information and Communications Technology for telecom operators and other industries. Today, more than 40 percent of the world’s mobile traffic goes through Ericsson networks in over 180 countries, and we support customers’ networks servicing more than 2.5 billion subscribers. Using innovation to empower people, business, and community, we are working towards the Networked Society, in which everything that can benefit from a connection will have one. At Ericsson, we apply our innovation to market-based solutions to help shape a more sustainable world.

We are truly a global company, operating across borders in over 180 countries, offering a diverse, performance-driven culture and an innovative and engaging environment where employees enhance their potential every day. They share a passion to win and a high responsiveness to customer needs that in turn makes us a desirable partner to our clients. To ensure professional growth, Ericsson offers a stimulating work experience, continuous learning and growth opportunities that allow you to acquire the knowledge and skills necessary to reach your career goals.


Ericsson provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, marital status, pregnancy, parental status, national origin, ethnic background, age, disability, political opinion, social status, veteran status, union membership or genetics. 

Ericsson complies with applicable country, state and all local laws governing nondiscrimination in employment in every location across the world in which the company has facilities. In addition, Ericsson supports the UN Guiding Principles for Business and Human Rights and the United Nations Global Compact.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, training and development.

Ericsson expressly prohibits any form of workplace harassment based on race, color, religion, sex, sexual orientation, marital status, pregnancy, parental status, national origin, ethnic background, age, disability, political opinion, social status, veteran status, union membership or genetic information.


Primary country and city: Sweden (SE) || || Lund || R&D