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ETSI TS 121 201
M00001617
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ETSI TS 121 201 LTE; Technical Specifications and Technical Reports for an Evolved Packet System (EPS) based 3GPP system (3GPP TS 21.201 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 03/01/2017
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ETSI TS 121 201 identifies the 3GPP system specifications for Release 8. The specifications and reports of this Release have a major version number 13 (i.e. 13.x.y). The listed Specifications are required to build a system based on the Evolved Packet System.The high-level architecture of such a system is defined in 3GPP TS 23.002 [2] (figure 1b).