Question: In a Location Preparation Procedure for an LCS EPC-MO-LR requesting location transfer to an external LCS Client, what action does the MME take regarding the GMLC address if one is not available?
Option 1: The MME generates a temporary GMLC address to proceed with the request.
Option 2: The MME may reject the location request due to the unavailability of a V-GMLC address.
Option 3: The MME selects an alternative E-SMLC that can provide a GMLC address.
Option 4: The MME uses a default GMLC address stored for such scenarios.
Explanation: According to the Location Services (LCS) protocol, if a V-GMLC (Visited Global Mobile Location Centre) address is not available for an LCS EPC-MO-LR (Evolved Packet Core - Mobile Originated - Location Request) that requests location transfer to an external LCS Client, the Mobility Management Entity (MME) has the discretion to reject the location request. This ensures that location services are only provided through authorized and configured GMLCs, maintaining security and service integrity.