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LTE: How many types of subscriptions Ids for an UE can be exchanged between PCEF and PCRF ?

+1 vote
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LTE: How many types of subscriptions Ids for an UE can be exchanged between PCEF and PCRF ?
posted May 5, 2018 by Harshita

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1 Answer

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In Gx interface, a user can be identified using one of the following identifier:
1. MSISDN - END_USER_E164 format
2. IMSI - END_USER_IMSI
3. SIP URI - END_USER_SIP_URI
4. Network Access Identifier (bob@example.com) - END_USER_NAI
5. END_USER_PRIVATE - It can be derived from IMSI

I used and seen mainly top three UE identifiers from the above list for Gx interface.

answer May 7, 2018 by Vimal Kumar Mishra
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+1 vote

There is one use case here. PCEF has sent CCR (due to IP-CAN session modify) to PCRF and it again sends CCR to (due to another update) without receiving previous CCA. What should be the behavior ?

+2 votes

This regarding the sessions b/w the PGW and PCRF.

Lets say we have 2 default bearers(DEF1, ad DEF2) for UE1, and 2 dediicated bearers for each of these Default bearers. And for UE2 assume 2 def bearers, DEF3, and DEF4.

Now a CCR is sent for initial default bearer DEF1 creation for UE1. Lets say session(session1) is created for this. with CCRequest number=0.
For Ded bearer1 creation, will it use the same session Id ? and increment the CCRNumber ?
What about the UE2?

I am new to Diameter and earlier, these things were internal and didnot need diameter interface. So the questions are arising.

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