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Master Thesis: Beamforming Router to increase cell coverage

Job Description

Date: Nov 8, 2019

Background

Current scenario: "Connecting everything" is an appropriate slogan for 5G technology ,as the 5G network evolution aims for increased network flexibility, allowing for widely different use cases and therefore a wider range of devices. As part of this, 5G opens up a set of new frequencies in the higher spectrum,  i.e. high band 5G. In high band, available frequency spectrum is in  the GHz range i.e. millimeter wave. As frequency is very high, millimeter waves cannot travel very long distances which limits cell coverage. To overcome this limitation, beamforming is a key technology to increase capacity and coverage of a 5G cell.


Proposal:
An analogue beamforming router  to cascade received data in a specific direction guided by eNodeB. The beamformer will not have to decode the whole signal. This makes the beamformer cheap and less complex.


Objective
The objective of this thesis is:

Part 1:
1. To calculate the angle of arrival of a fixed signal (for ex: SRS) from UE.
2. Develop an algorithm to be used at eNodeB for calculating the angle used when guiding the beamformer.
3. Send the angle of beamforming to the fixed beamformer
4. Simulate and validate an analog beamforming device whose main role is to beamform user data in a certain direction based on information from eNodeB.

Part 2:
Suppose we have more than 1 fixed beamformer in a cell. Develop an algorithm to select the most suitable beamformer depending on the UE position and guide the selected beamformer to beamform user data according to part 1.


Qualifications

  • We are searching for one or two students that is close to finishing a degree in Wireless communication, Telecom Engineering or a similar program
  • Knowledge in LTE and wireless communication
  • Good skills in Matlab and knowledge of C/C++  and python is an advantage
  • As person you are fluent in English, have good analytical capability and good social skills


Extent: 2 student
Work location: Lund
Preferred Starting Date: Q1 2020
Last Day to Apply: 24th of November
Contact: Agnes Westerberg, agnes.westerberg@ericsson.com

 

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

Req ID: 303682