[Bloat] ericsson vAQM on LTE

[Dave Taht]

It takes a while to get to the point, but I am encouraged. Maybe we
don't have to rebuild/reverse enginer a few 5g implementations from
scratch.

https://www.ericsson.com/assets/local/publications/ericsson-technology-review/docs/2018/virtual-aqm-for-mobile-networks.pdf

"Figure 3 illustrates vAQM in two scenarios: Packet Data Network
Gateway (PDN GW) of Evolved Packet Core (EPC) in 4G and in the User
Plane Function (UPF) of 5G core. In 5G, vAQM will be deployed as a
network function by the UPF of the 5G core. It will be configured per
PDU session, per SDF (Service Data Flow)/QoS flow – that is, the
guaranteed bitrate (GBR) or nonGBR QoS flow. The non-GBR QoS flows of
one PDU session will be aggregated and handled by one vAQM, whereas
each GBR QoS flow will be allocated a vAQM with a dedicated virtual
buffer. The Session Management Function (SMF) will configure vAQM and
its virtual buffers for the QoS flows during the PDU session
establishment/ modification phase. Configuration will occur when SMF
provides the UPF with a QoS Enforcement Rule that contains information
related to QoS enforcement of traffic including an SDF template (in
other words, packet filter sets), the QoS-related information
including GBR and maximum bitrate, and the corresponding packet
marking information – in other words, the QoS Flow Identifier (QFI),
the transport-level-packet-marking value. vAQM is self-learning,
making it fully automated without any parametrization."

-- 

Dave Täht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619