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LTE, 5G: What all can be achieved by segregating control and user plane from LTE SGW and PGW nodes ?

+4 votes
LTE, 5G: What all can be achieved by segregating control and user plane from LTE SGW and PGW nodes ?
posted Jan 12, 2017 by Harshita

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2 Answers

+1 vote

Segregating control and data plane is one of the main change in 5G EPC network. To meet the performance control and data plane segregation would be required. Somewhere I saw by using the SDN controller and open flow based switches, dependency of GTP protocol for data transmission can be removed. GTP would not be good choice for data path going forward.

answer Jul 1, 2017 by Vikram Singh
0 votes

In my understanding, in 5G is purely virtual based so it will be defined easily by the Virtual Machines.

answer May 12, 2017 by Hana Pamora
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+2 votes

I just know CUPS stands for control and user plane separation but what is the advantage of it ? Has any network operator ever deployed CUPS solution in their network ?

+2 votes

I went through a web material which was talking about connection less LTE network in which control place will be dis-aggregated from the user plane and data plane will not use GTP-U protocol. I want to know, after removing GTP-U from data plane, will there be any impact of existing procedures like UE state transition between Connected and IDLE states.

+1 vote

GTP tunnel id is a 32-bit long value over one IP address combination. Suppose there are two nodes A and B which has IP addresses X and Y respectively. Is it possible when first GTP tunnel id range gets exhausted then both the nodes starts using different IP address combination and again GTP tunnel id range can be re-used ? If it is impossible then what could be the reason ?

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