Bandwidth Studies for the Upgrade of the Trigger system during Run III

The LHCb experiment will be upgraded between 2018 and 2019 in order to reach unprecedented pre- cision on the b and c-quarks sector. The Trigger system will be upgraded to a full software trigger and will process the full inelastic collision rate to reduce the amount of data saved to disk. One of the main challenges is to find a way to divide the limited available output bandwidth amongst the planned physics analyses. This document presents studies performed during the CERN Summer Stu- dent Programme in the LHCb trigger group. A new quantitative strategy is presented and applied to the charm sector as a case study.