Controlling coverage using new concept of pre-installed infrastructure

This paper focuses on controlling coverage inside buildings via a new concept of Pre-Installed Infrastructure (PII) inside buildings based on the Distributed Antenna System (DAS). The new concept is based on the entire infrastructure, such as cables and antennas, being pre-installed during the construction of the building to form a large (Pre-) Distributed Antenna System. The system significantly decreases additional costs caused by any change in a building and controls coverage based on the user´s position. Further, a new 3D semi-deterministic propagation model utilized for simulations of the PII influence is briefly described.