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What is combined MME/SGSN in LTE?

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What is combined MME/SGSN in LTE?
posted Nov 20, 2014 by Gnanendra Reddy

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1 Answer

+1 vote

Combined SGSN-MME means a node which has SGSN functionality for GSM/WCDMA and Mobility Management Entity (MME) functionality for LTE/EPC.

In general operator like to upgrade the existing SGSN node to provide addon MME functionality (to reduce the cost) which can be implemented just by software upgrades on SGSN nodes.

answer Nov 20, 2014 by Salil Agrawal
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I am looking for scenarios in which MME/SGSN purges an UE. And also what these nodes do as part of this procedure.

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