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3GPP SLg  Application ( 16777255 )

The SLg reference point is located between the Gateway Mobile Location Center (GMLC) and the Mobility Management Entity (MME). This interface provides Location Services (LCS) functions, including the ability for the GMLC to request position estimates for specific User Equipment (UE) from a MME, and for the MME to return a position estimate or error report to the GMLC on the position of the specified UE.
Reference:  3GPP TS29.172   View



Provide-Location-Request 8388620
Provide-Location-Answer 8388620
Location-Report-Request 8388621
Location-Report-Answer 8388621