ETSI TR 123 930

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ETSI TR 123 930 English PDF Universal Mobile Telecommunications System (UMTS); Iu Principles (3G TR 23.930 version 3.0.0 Release 1999)

standard published 01/01/2000 by European Telecommunications Standards Institute

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The Iu reference point of UMTS is defined to be at the boundary of the URAN and the IWU [1]. In case the IWU is null, the Iu is between URAN and CN. The purpose of this document is to analyze the basic issues related to the Iu before starting the actual standardisation of the related interface(s).