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ETSI TS 123 271
M00002797
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ETSI TS 123 271 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Functional stage 2 description of location services (3GPP TS 23.271 version 14.1.0 Release 14)
standard by European Telecommunications Standards Institute, 05/01/2017
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Full Description
ETSI TS 123 271 specifies the stage 2 of the LoCation Services (LCS) feature in UMTS, GSM and EPS (for EUTRAN),which provides the mechanisms to support mobile location services for operators, subscribers and third partyservice providers.The present document replaces the specifications TS 23.171 (Release 1999) and the system and core network parts ofGSM 03.71 (Release 1999). TS 43.059 [16] replaces the radio access network parts of GSM 03.71 (Release 1999). Location Services may be considered as a network provided enabling technology consisting of standardised servicecapabilities, which enable the provision of location applications. The application(s) may be service provider specific.
The description of the numerous and varied possible location applications which are enabled by this technology areoutside the scope of the present document. However, clarifying examples of how the functionality being described maybe used to provide specific location services may be included.
This stage 2 service description covers the LCS system functional model for the whole system, the LCS systemarchitecture, state descriptions, message flows, etc.