3GPP Rel-18 Operating 5G Advanced NR in Channel Bandwidths Less Than or Equal to 5 MHz. - Gerardo Agni Medina-Acosta; Kittipong Kittichokechai; Keerthi Kumar Nagalapur; Mirza Uzair Baig; Kazuyoshi Uesaka; Dominique Everaere (IEEE Commun. Stand. Mag., 2026)