MBR & GBR Values in Bearer Level QoS

The other day I had a query about a roaming network that was sending Bearer Level QoS parameters in the Create Session Request to 0Kbps, up and down rather than populating the MBR values.

I knew for Guaranteed Bit Rate bearers that this was of course set, but for non GBR bearers (QCI 5 to 9) I figured this would be set the to MBR, but that’s not the case.

So what gives?

Well, according to TS 29.274:

For non-GBR bearers, both the UL/DL MBR and GBR should be set to zero.

So there you have it, if it’s not a QCI 1-4 bearer then these values are always 0.

2 thoughts on “MBR & GBR Values in Bearer Level QoS

  1. Hi Nick, what would happen if the non-GBR bearers values are set, like QCI 9 and QCI 5? I have another question ,is it fine to have same GBR and MBR values for QCI 1 or QCI 2 ?

    Thanks and Regards,
    Shreyas

  2. Hi Nick ,I was curious on what would happen if non-GBR bearers does have a value? I have another question if is it ok to have a same GBR and MBR for QCI 1 and QCI 2 ?

    Regards,
    Shreyas

Leave a Reply

Your email address will not be published. Required fields are marked *