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

Question

In what are all conditions, MME execute cancel location procedure for an UE towards the HSS ?

Answer 1

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.

Comments

plz modify CLR with ULR flag "s6a/s6d indicator" that is not CLR and correct is ULR in 2nd paragraph 2nd line

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Could not get you

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s6a/s6d indicator flag sent by ULR message but above you mentioned CLR