5G/5G-Advanced: The New Generation Wireless Access Technology follows the authors' highly celebrated books on 3G, 4G, and earlier books on 5G by providing a new level of insight into 5G and 5G-Advanced. After an initial discussion of the background to 5G, including requirements, spectrum aspects, and the standardization timeline, all key technology features of 5G and the evolution into 5G-Advanced are described in detail. Included is a detailed description of the NR physical-layer structure and higher-layer protocols, RF and spectrum aspects, and coexistence and interworking with LTE. The book provides a good understanding of 5G and the evolution into 5G-Advanced and the different technology components, giving insight into why a certain solution was selected. Included in this new edition are key release 17 and 18 features: Spectrum extension beyond 52.6 GHz, Network-contra I led repeaters and enhancements to IAB, Reduced capability devices (RedCap), Sidelink enhancements, Positioning enhancements, MIMO enhancements, Non-terrestrial networks (NTNs), Support for broadcast/multicast services, Mobility enhancements, Power-saving enhancements, Duplex enhancements, AI/ML studies in 3GPP The book also contains an outlook on the evolution beyond release 18, as well as future 6G systems.