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What is the purpose of having Location Reporting Procedure ?

+1 vote

Why MME need this procedure even in case of UE is in ECM-Connected mode ?

posted Sep 25, 2014 by Neelam

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1 Answer

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There can be two reason for the location reporting procedure which was introduced in Release 9 -
1. Location Based charging: PGW/GGSN needs to know the exact location of UE to have Location Based Charging.
2. Lawful Intercept: PGW/GGSN needs the exact UE location to enable LI.

When MME/PGW supports location reporting then MME will ask eNB to report UE location and when UE moves from one TAI to other TAI or from one cell to another cell, eNodeB will send Location Update message to MME. Which passes this information to PGW/SSGN over ULI IE (User Location Information).

answer Sep 25, 2014 by Salil Agrawal
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