ETSI TS 123 221

Print
View full size

ETSI TS 123 221 English PDF Universal Mobile Telecommunications System (UMTS); Architectural requirements (3GPP TS 23.221 version 4.0.0 Release 4)

standard published 04/01/2001 by European Telecommunications Standards Institute

More details

More info

Full Description

To cover issues related to the evolution of the GSM platform towards UMTS with the overall goal of fulfilling the UMTS service requirements, the support of the UMTS role model, support of roaming and support of new functionality, signalling systems and interfaces.