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S6a/S6d : Why does HSS send "PUA-flags" within the Purge UE answer message ?

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As part of the purge ue procedure, HSS sends PUA-flags within the Purge UE Answer message to the MME or SGSN.
Can someone please explain the importance of bits present in the PUA-flags AVP with respect to the MME or SGSN.

posted Apr 16, 2014 by Harshita

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1 Answer

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As part of the Purge UE procedure, HSS receives the Purge UE Request command message from MME/SGSN and responds back to MME/SGSN using the Purge UE Answer message.

Presence of PUA-flag is conditional optional within the Purge UE Answer message.
PUA-flag informs about the "Freeze M-TMSI" or "Freeze P-TMSI" action need to be taken at the MME or SGSN respectively.

answer Apr 17, 2014 by Vimal Kumar Mishra
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