A look at attack vectors the NRF opens up in #5G Core networks, and the mitigations recommended by 3GPP.
Looking for Love in the 5G Core?
Let’s look at our matchmaker – The Network Repository Function in 5G Core.
How GTP is extended in 5G Core Networks to support extra QoS functionality like Reflective QoS and Delay Indicators
5GC includes native support for framed-routing.
A great new feature of #5G Core Networks is Reflective QoS – Where QoS of the traffic coming to a UE is reflected on the QoS coming out.
The first SMS was sent in 1993, and all these years later as 5G rolls out, we’re still supporting it.
There’s no such thing as a free lunch, and 5G is the same – services running through a 5G Standalone core need to be billed. In 5G Core Networks, the SMF (Session Management Function) reaches out to the CHF (Charging Function) to perform online charging, via the Nchf_ConvergedCharging Service Based Interface (aka reference point). Like […]
A look at the Equipment Identity Register in 5G Core
How turning mobile data off, doesn’t, in LTE and 5G.
As the number of Private Networks built on LTE and 5G grow, how will PLMN allocation be managed?
5G introduces Network Slicing, or does it? A look at slicing mechanisms widely used in pre-5G networks.
A look at non-IP transport for 5G including Ethernet.
New database time to support slicing and a migration path for existing users.
A look at MTU and its role in LTE and 5G Transmission.
Acronyms and cryptography – a look at Subscriber Identifiers in 5G
Note: As this space develops so quickly I’ve refreshed the original post from November 2021 in March 2021 with updated instructions. While 5G SA devices are still in their early stages, and 5G RAN hardware / gNodeBs are hard to come by, so today we’ll cover using UERANSIM to simulate UEs and 5G RAN, to […]
Configuring the NRF for Open5GS
A look at the Network Function Repository Function (NRF) in 5G Core
Comparing the Control Plane signalling in 5GC compared to EPC.
How User Plane traffic is handled in 5GC compared to EPC