The present SAPIENT (Satellite and terrestrial architectures improving performance, security and safety in ATM) proposal addresses a new innovative application in the field of CNS/ATM system (H2020 SESAR ER Call 2015 Work Area 2, ER-08-2015) focusing exploitation of the synergies of Communications and Navigation technologies and the 4D trajectory management concept.In this frame, the SAPIENT proje ...