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Please clarify the IP CAN session term practically in LTE network?

+1 vote
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Please help me to clarify the IP CAN session term practically in a network.

What my understanding is, it is an Access type network like connected with EPS or conected with Wifi and using VoWiFi or by FTTx.

Is one APN (internet or IMS) can be having 2 IP CAN sessions? confused :-P

posted Mar 24, 2016 by anonymous

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AFAIK one APN can have only one IP CAN session.

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+1 vote

Can we have a live scenario wherein PCRF gets multiple attach request(CCR-I) where only the Framed-IP-Address and Session-Id are different but Subscriber-Id information and APN remain same? From network point of view, what can be the use case for this?

+1 vote

As far as I know, PCRF does the Session binding and PCEF responsible for Bearer binding.
Pls explain with examples of practical scenario.

+5 votes

I gone through the RFC4006 but didnt get the context of below paragraph

   Certain applications require multiple credit-control sub-sessions.
   These applications would send messages with a constant Session-Id
   AVP, but with a different CC-Sub-Session-Id AVP.  If several credit
   sub-sessions will be used, all sub-sessions MUST be closed separately
   before the main session is closed so that units per sub-session may
   be reported.  The absence of this AVP implies that no sub-sessions
   are in use.

But here my question is
1. What could be the types of Multiple credit-ontrol Sub-session?
2. How can we include different cc-sub-session-ID for each sub-session, please give me an example with message structure using CCR message.

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