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Is EUTRAN to GERAN HO happening in LTE and instead of GERAN we use Cell change order procedure?

+2 votes
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Is EUTRAN to GERAN HO happening in LTE and instead of GERAN we use Cell change order procedure?
posted Oct 14, 2015 by Gnanendra Reddy

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+2 votes

This query come out to give answer one of the query. Is really UE should perform combined attach procedure( EPS and non-EPS) for handover between LTE to other 3GPP technology like UMTS/GERAN ?

+2 votes

Scenarios when cell change order happens in UMTS/LTE ?

0 votes

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 ?

+1 vote

Hi All,

I am facing X2 setup failures in some sites. What will be possible reasons apart from transport issues. Can we optimize the issue from RF perspective? Kindly help me in this

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