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Gy Specifications related query for LTE

+1 vote
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I am going through the 32.299 and trying to figure out the contents of the CCR message.

Section 6.4.2 lists the AVPS in that message, I am looking for how the PCEF sends the "used bytes" to OCS. The "Multiple services credit control" looks like the one. But need some inputs and help on this AVP. Or please correct me if I am wrong.

posted Dec 17, 2015 by Pdk

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2 Answers

+2 votes
 
Best answer

Hi,

You guessed it right. MSCC is the AVP which conveys the information to OCS for the used data.

Regards,
Peeyush Sharma

answer Dec 17, 2015 by Peeyush Sharma
Thanks a lot Peeyush,

Just to add what i wrote above, I think the "Used Service Unit" AVP is the one inside this AVP, which can be used to convey the number of octets consumed by the PCEF.
commented Dec 17, 2015 by Pdk
Yes, as the name suggest :)
commented Dec 17, 2015 by Peeyush Sharma
Now another question (it looks like never ending )
lets say we have counter 1, for a subscriber1, configured in SPR. Lets say this counter1 indicates that the QOS is throttled from 520kbps to 220kbps, when the usage exceeds the lets say 50MB in one month. This is what i understood..Now my query, is does this apply to only GBR bearers in the Subscriber ? And does it apply to all the dedicated GBR bearers ?
How is it applicable for the non GBR bearers ?

Also the PCEF, needs to send the CCR to OCS, i am not able to see how the PCEF is configured to trigger these reports back to OCS. (Is it by the CCA sent by the PCRF, that triggers this reporting from PCEF to PCRF ?)

May be I put this as a new question
commented Dec 18, 2015 by Pdk
+1 vote

PGW will send Consumed Data for a particular rating group and service id combine in Used Service Unit AVP under MSCC AVP in two scenarios.
First when the Data threshold is reached.Lets say initially OCS grants Total-cc-octets:10000 octets in GSU AVP for the given rating group and service id.Now network operator depending on its Credit Management ,configured in PGW that if suppose 20% of the total GSU left than trigger a CCR-U towards OCS on Gy interface.This CCR-U will contain Used Service Units as 8000 and Reporting Reason as Threshold Reached under the MSCC and also Request for more octets.

2nd scenarios is that when the session ends,in this case also PGW reports consumed octets in Used Service Units AVP under MSCC level.

Hope it will clarify Your doubts.

answer Oct 16, 2016 by Sanjeet Singh
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