UMTS-FDD - Wikipedia, the free encyclopedia
UMTS-FDD, an acronym for "Universal Mobile Telecommunications System (UMTS) - frequency-division duplexing (FDD)," is a 3GPP standardized version of UMTS networks that use UTRA-FDD.[1] UTRA-FDD is a UTRA that uses frequency-division duplexing for duplexin...