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Default EPS Bearer QOS and QOS info in the CCR message

+2 votes


Pardon me, this is just a theoretical question. Not started my real testing yet. But so meantime trying to see I handle the basic possible scenarios.

In the CCR message of type (Initial Request), lets say PCRF receives both the "QOS" (containing APN AMBR UL and APN AMBR DL) and "Default Bearer QOS" AVP (containing QCI and ARP).
As of now, in my basic code, I return the QOS based on apn info received on "Called-station-ID" AVP. Will it be ok..Or is there any better suggestions on this ?


posted Aug 28, 2015 by Pdk

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1 Answer

0 votes

Theoritically it can be like that.
But, it should be based on the RAT (Radio Access Type) info and the Subscriber Package. Let say if the user does not subscribe anything, you can give the small speed rather than the subscribed user.

answer May 7, 2017 by Hana Pamora
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+1 vote

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Because in case we have two services, WAP and Videostreaming, we can have two charging rules ( One service type for WAP and another for Video )..In this case, the CCA will have two charging rules (each with service Identifier, as WAP and streaming) and each will have different TFT. So the PGW can apply these two rules on the default bearer.
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+1 vote

Hello all,

Can anybody suggests how we can set maximum bitrates for parameters like MBR, GBR (UL,DL), APN-AMBR(UL/DL), UE-AMBR(UL/DL) for GBR and Non GBR bearer.?

Are those values standard from PCRFor does it define dynamically based on user subscription.?
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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 ?

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+3 votes

I was trying to understand and implement basic version of 29.213 Section 6.3 QoS parameter mapping Functions at PCRF especially for non GBR bearers.

Non GBR bearers have QCI, ARP, APN-AMBR and UE-AMBR. And also MBR associated with each bearer in the PGW..So when a new bearer is added, the UE and Ennode-b dynamically take care that total rate of all bearers doesnot exceed APN-AMBR (for each APN) and UE-AMBR for all Non GBR bearers in UE..

So not sure PCRF can alter any params related to BW in case of non GBR.. This is my understanding..If you have any comments will be very helpful.