The present document contains the outcome of the study on the charging architecture for the one-to-many "ProSe Direct Communication for ProSe-enabled Public Safety UEs". The study covers the "ProSe Direct Communication for Public Safety use" as specified in TS 23.303, in order to meet the charging requirements specified in TS 22.115. The present document makes recommendations for the following aspects of ProSe Direct Communication for Public Safety use:

• charging requirements and principles;
• charging architecture and charging scenarios, with the support of delayed reporting;
• charging interfaces; and
• recommendations to CT1 on UE reporting configuration and usage information elements.