backward compatible with existing LTE networks and can coexist on the same frequencies, which makes a smooth LTE-Advanced Pro rollout possible. The quality and performance of LTE-Advanced Pro is not only important for the short term but also in the long term when 5G radio is deployed. The first phase 5G uses dual connectivity, which allows the data rates from 5G and LTE radios to be combined. A high-quality LTE network is a great starting point for 5G deployment. References References 1 Holma, H. and Toskala, A. (2011). LTE for UMTS: Evolution to LTE-Advanced, 2e. Wiley. 2 Holma, H. and Toskala, A. (2012). LTE Advanced: 3GPP Solution for IMT-Advanced. Wiley. 3 Holma, H., Toskala, A., and Reunanen, J. (2015). LTE Small Cell Optimization: 3GPP Evolution to Release, vol. 13. Wiley. 4 Global Mobile Suppliers Association (2018). www.gsacom.com. 5 NGMN white paper about 5G requirements (2015). https://www.ngmn.org/fileadmin/ hngmn/content/downloads/Technical/2015/NGMN_5G_White_Paper_V1_0.pd 6 ITU-R 5G requirements. (2015). http://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M .2083-0-201509-I!PDF-E.pdf 7 3GPP Technical Report (2010). Feasibility study for Further Advancements for E-UTRA (LTE-Advanced). 3GPP TR 36.912. Index 5G infrastructure public private partnership Base station to base station interference (5G-PPP) 5G mobile communications promotion Beam association forum (5GMF) Beam correspondence 99, 115 5G targets 3, 240 Beam failure detection (BFD) 120, 5G QoS identifier (5QI) Beam failure recovery request (BFRQ) 5G unlicensed 462 Beamforming 31, 269 Beam sweeping Access and mobility management function Bit interleaver (AMF) 72 Block interleaver Bluetooth Acknowledgement (ACK) 36, 264, 297 Active antenna Boundary clock Broadcast channel Adaptive maximum power reduction (A-MPR) Adjacent channel leakage ratio (ACLR) Carrier aggregation 266, 417 201, 364, 376 Category-M 433, 436 Adjacent channel selectivity (ACS) C-band 55 Antenna elements Cell radius Antennas 193 Cell ranking Architecture options Cell reference signal