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LTE: What does mean by implicit detach procedure at MME ?

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LTE: What does mean by implicit detach procedure at MME ?
posted Jul 11, 2014 by Ganesh

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1 Answer

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When MME not able to communicate with the UE because of poor radio link quality (radio link failure)
At this stage MME doesn’t send detach request or doesn’t inform to UE about detach, it implicitly detaches

answer Feb 14, 2019 by anonymous
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When target eNodeB is not able to allocate resource for all the bearers which comes as part of Handover Request message, it sends handover request ack with partial success since "E-RABs Failed to Setup List" is present in HOReqAck message.
What MME or source eNodeB does in that case ? Does any action taken by MME for the E-RABs which failed to setup at target eNodeB or some other actions taken ?

+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 ?