top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

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

+2 votes
1,984 views
what is cancellation type "initial attach procedure" in cancel location request?when HSS will send to MME?
posted Nov 18, 2014 by Gnanendra Reddy

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

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
Similar Questions
+3 votes

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

+2 votes

In what all scenarios, this procedure gets executed ? And why this procedure need to be executed ?

+2 votes

Does Mme also sends Purge(PUR) to HSS before sending delete session request to SGW when MME receives detach request from enodeb side ?
It would be great if you give your valuable suggestion ?

+2 votes

what mme does once mme gets ULA(update location answer ) from HSS with respect to egtpc?
what all scenario are available ?

...