u/Fuzaylee

▲ 0 r/ATT

Как я могу организовать точный безлимит на 5G для своих абонентов в архитектуре NSA. С "тупым" DPI?

Hello world!
Я новичёк в сотовом операторе. Получил таск от руководства: как оранизовать безлимит на 5G для реальных абонентов в архитектуре NSA 5G. В которой DPI не может отличить 4G траффик от 5G.
Есть ли те которые работали с похожими коммерческими предложениями?
Буду рад любой информации

reddit.com
u/Fuzaylee — 4 days ago

Как я могу организовать точный безлимит на 5G для своих абонентов в архитектуре NSA. С "тупым" DPI?

Hello world!
Я новичёк в сотовом операторе. Получил таск от руководства: как оранизовать безлимит на 5G для реальных абонентов в архитектуре NSA 5G. В которой DPI не может отличить 4G траффик от 5G.
Есть ли те которые работали с похожими коммерческими предложениями?
Буду рад любой информации

reddit.com
u/Fuzaylee — 4 days ago

How to implement true unlimited data for 5G NSA subscribers when DPI cannot distinguish 4G and 5G traffic?

Hello everyone,

I work for a mobile operator, and I recently received a task from management to investigate how we can offer true unlimited mobile internet for subscribers using our 5G network.I am still learning this area, so I would really appreciate advice from experienced mobile core/network engineers, especially those who have worked with 5G NSA architecture.

Our current situation is the following:We have a 5G NSA deployment, where the data session is still anchored in the EPC side. From what I understand, user traffic goes through the usual packet core path, and in our case the DPI system does not clearly distinguish whether the subscriber’s traffic is actually coming from 4G/LTE or from 5G NSA.

The main question is:

How can we correctly implement an unlimited internet offer only for subscribers who are really using 5G, if the DPI cannot separate 4G traffic from 5G traffic? Some of the things I am trying to understand : should this logic be implemented on the PCRF/PCF side instead of DPI? Is it possible to rely on RAT type, access type, NR indication, or any 5G NSA-related parameter from MME/SGW/PGW? In NSA architecture, where exactly is the best place to detect that the subscriber is using 5G? Can this be done through Gx policy rules, QoS profiles, rating groups, or charging logic? How do other operators usually handle “5G unlimited” plans in NSA networks? Is it better to create a separate 5G unlimited package with FUP/QoS limits rather than a completely unlimited plan? What happens when the subscriber falls back from 5G to LTE during the same session? My concern is that if we simply make traffic unlimited based only on APN or DPI classification, then LTE users may also receive the same unlimited access, because the DPI does not know whether the traffic is from 4G or 5G.

Has anyone here worked on a similar commercial 5G NSA unlimited data offer?

I would really appreciate any guidance, architecture examples, vendor-neutral recommendations, or real operator experience.

Thank you in advance.

reddit.com
u/Fuzaylee — 4 days ago