ETSI TR 101 111

Universal Mobile Telecommunications System (UMTS); Requirements for the UMTS Terrestrial Radio Access system (UTRA) (UMTS 21.01 version 3.0.1) Edition: 3.0.1
European Telecommunications Standards Institute / 01-Nov-1997 / 25 pages

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This ETSI Technical Report (TR) identifies the general requirements of the radio interface of the Universal Mobile Telecommunications System (UMTS). These requirements are derived from the UMTS services and fac ilities framework contained within UMTS 22.01 [7] and 22.05 [8], takin g into consideration different operational environments, mobility requ irements, cell architectures, etc. of a possible model of the protocol stack of the radio interfaces is i ncluded.