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Question about the gNB1 connections. #1

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noormohammedli opened this issue Oct 30, 2021 · 3 comments
Open

Question about the gNB1 connections. #1

noormohammedli opened this issue Oct 30, 2021 · 3 comments

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@noormohammedli
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Hello Sir,

Thanks for sharing this example.
I have two questions:

Q1:
In your example, with gNB1 the UE connect to it by running the first UE file (free5gc-ue-loc1.yaml) inside UERANSIM VM, and when the UE is connected to the gNB2 you run the second file (free5gc-ue-loc2.yaml). So, my question is, does the user lose the first connection after running the second file? or the first file (ree5gc-ue-loc1.yaml) still running until i cut the connection.

Q2:
If I have sst1 and sst2 and the user connects to both of them. How can I make the UE connect to the first one and cut the connection from the second one or vice versa? So, can I use the same way that you use with gNB1 and gNB2 or there is another way to do that?
If I want to edit the configuration file which files do I need to deal with inside the NFs folder in addition to the YAML file that I know about.

Regads,
Noor

@s5uishida
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s5uishida commented Oct 31, 2021

Hi @noormohammedli

Q1:

When one UE (UERANSIM) connected to both gNodeB1 and gNodeB2, IP addresses were assigned to uesimtun0 and uesimtun1 and I was able to ping with both interfaces. In addition, I do not know whether this is appropriate or not according to the 3GPP spec.

But, I don't understand the meaning of using one UE connected to two gNodeB1+AMF1 and gNodeB2+AMF2 at the same time. Does that mean the handover process? If so, probably UERANSIM does not support handover yet, so I don't think it can be confirmed.

Q2:

The configuration you are trying seems to be different from the configuration I wrote. I think it would be good to consider a different configuration without referring to my configuration.

@noormohammedli
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noormohammedli commented Oct 31, 2021

Hi @s5uishida,

Thanks for your replay,
Yes, I mean the handover process.

Do you have an idea how can I deal with NSSF in (handover or Mobility ) process between the slices for one UE?

Thanks,

@s5uishida
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Hi @noormohammedli

I have no idea yet, but I would like to investigate how to use NSSF and PCF together.

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