Correlation between Gx and Gy Interfaces (PGW/PCRF & PGW/OCS)

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Hi all,

We have complexity linked to Gy and Gx interfaces.

Let's say that we have two rules configured as static on PGW with :

Rule1= Reports RatingGroup1
Rule2= Reports RatingGroup2

When PCRF install Rule 1 on Gx, the ratingGroup reported by PGW to OCS is RatingGroup1
When PCRF uninstal Rule1 then install Rule2, the ratingGroup reported by PGW remain RatingGroup1 till a Gy trigger is reached (revalidation time, GSU consumption...).
Then the problem on our system is that when PCRF change the rules on Gx interface the PGW keep reporting the old rating group on Gy interface ie: Gx change do not lead to a Gy change similtanously. I m wondering if there is a standard behaviour for such a use case?

Thanks a lot

posted Sep 19, 2016 by Mohamed Charif Benabad

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1 Answer

A static rule can be mapped to a particular Rating-Group as in your case. For every Rule PGW should report the same rating-group to OCS as configured against its name.
Ex: There could be static rule which could be used for IMS APN and there could be few used for internet services. Operator would like to charge differently for them.

Standard behavior says same rating-group should be reported to OCS as sent by OCS or configured locally against a static rule.

Regards,
Peeyush Sharma

answer Sep 21, 2016 by Peeyush Sharma

thank you Mr. Peeyush for your feedback.
Could you please show us which TS in 3GPP show this standard.

Thank you in advance,

commented Sep 21, 2016 by anonymous

In order to understand the complete flow you will have to go through 29.212, 32.299, 32.251 and RFC 4006

commented Sep 21, 2016 by Peeyush Sharma

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