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what is cancellation type "initial attach procedure" in cancel location request?when HSS will send to MME?

+2 votes
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what is cancellation type "initial attach procedure" in cancel location request?when HSS will send to MME?
posted Nov 18, 2014 by Gnanendra Reddy

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1 Answer

+2 votes

If a cancellation type of "Initial Attach Procedure" is received, the MME or SGSN shall not delete the subscription data.

This is what specs are saying -
CLR is also sent to inform MME/SGSN about initial attach: In case of Initial attach previous node shall not delete the data. while previous node is combined node and ULR Flag "S6a/S6d-Indicator" is set then only MME data to be deleted. CLR with "INITIAL_ATTACH_PROCEDURE " flag shall only be trigger-red when MME sends Initial attach Indication in ULR Flag. Initial attach generally take place in Emergency situations.

CLR with Initial_attach

answer Nov 19, 2014 by Salil Agrawal
plz modify CLR with ULR flag "s6a/s6d indicator" that is not CLR and correct is ULR in 2nd paragraph 2nd line
Could not get you
s6a/s6d indicator flag sent by ULR message but above you mentioned CLR
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