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LTE: Is it necessary, all PGWs serving an UE for different APNs communicate with same PCRF ?

+2 votes
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A UE can make simultaneous connections with different PGWs with the assumption that each PGW serving different APN.
In this particular case, is it necessary all different PGWs would be communicating with same PCRF ?

posted Apr 26, 2018 by Vikram Singh

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I was going through deployment options 4A and 7, in which LTE eNodeB interacts with NGCN for control plane and user plane.
I am thinking the scenarios that when an operator would require particular option 7 in which eNodeB control and user plane both ends interface towards NGCN ? If this is the case then S1-AP and NG-AP both protocols will have to implement at next generation core network.
Is my understanding of option 7 is correct ?

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