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How QOS will be handled in NSA architecture of 5G?

+1 vote

Non stand alone architecture is 4G and 5G dual connectivity architecture. In this Will network enforce 4G QOS or 5G QOS policies for the data?How it is handled at MAC

posted Jan 28, 2019 by Akhilesh

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1 Answer

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QOS will be different for each cell (LTE, NR). Different QOS will be treated in each cell. If data flows through LTE then it applied former LTE QOS and NR applies new QOS policy. Only in stand alone case complete NR QOS will be enforced.

answer Feb 5, 2019 by Jaganathan
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0 votes

I want to know, how the AS level QOS is determined.

Lets say For GBR QoS flow1 only: GFBR1 (Guaranteed Flow Bit Rate), MFBR1 (Maximum Flow Bit Rate)
Now that QOS1 and QOS2 mapped to DRB1..So how the MBR for DRB1 is decided. I mean what is the input to MAC level scheduler ?

Im interested in IE level details also

+2 votes

What is Reflective QOS in 5g ? how is it handled. I am looking for detailed info on how the UE derives uplink QOS flow info from downlink?
Also another related doubt is : What happens if the UE needs to send the DL packet before any uplink packets arrived (to derive the mapping in UL as per Reflective QOS) ?

+1 vote

In specification, I found two categories of QoS rules i.e., Signaled and Derived QoS rules. At a high level what I know that signaled QoS rules are the rules which are generated at core network and sent to UE as part of PDU SESSION ESTABLISHMENT. But I want to know what is derived QoS and where it is generated and used ?

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