Categories
5G SA Mobile Networks RFCs & Standards

5G Online Charging with the Nchf_ConvergedCharging SBI

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 […]

Categories
5G SA Mobile Networks SDM

EIR in 5G Networks (N5g-eir_EquipmentIdentityCheck)

A look at the Equipment Identity Register in 5G Core

Categories
EPC LTE Mobile Networks SDM SIM Cards

PS Data Off

How turning mobile data off, doesn’t, in LTE and 5G.

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5G SA EPC EUTRAN LTE Mobile Networks RFCs & Standards SDM Security SIM Cards

The PLMN Problem for Private LTE / 5G

As the number of Private Networks built on LTE and 5G grow, how will PLMN allocation be managed?

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5G SA EPC EUTRAN GSM LTE Mobile Networks RFCs & Standards

Pre-5G Network Slicing

5G introduces Network Slicing, or does it? A look at slicing mechanisms widely used in pre-5G networks.

Categories
5G SA Mobile Networks RFCs & Standards

5Gethernet? – Transporting Non-IP data in 5G

A look at non-IP transport for 5G including Ethernet.

Categories
5G SA EPC LTE Mobile Networks SDM Software

Open5Gs Database Schema Change

New database time to support slicing and a migration path for existing users.

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5G SA EPC LTE Mobile Networks

MTU in LTE & 5G Transmission Networks – Part 1

A look at MTU and its role in LTE and 5G Transmission.

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5G SA Mobile Networks SDM Security SIM Cards

5G Subscriber Identifiers – SUCI & SUPI

Acronyms and cryptography – a look at Subscriber Identifiers in 5G

Categories
5G SA Mobile Networks

My first 5G Core: Open5Gs and UERANSIM

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 […]

Categories
5G SA Mobile Networks

Open5GS – NRF Setup

Configuring the NRF for Open5GS

Categories
5G SA Mobile Networks RFCs & Standards

5GC: The Network Function Repository Function

A look at the Network Function Repository Function (NRF) in 5G Core

Categories
5G SA EPC Mobile Networks RFCs & Standards

5GC for EPC Folks – Control Plane Signalling

Comparing the Control Plane signalling in 5GC compared to EPC.

Categories
5G SA EPC Mobile Networks RFCs & Standards

5GC for EPC Folks – User Plane Traffic

How User Plane traffic is handled in 5GC compared to EPC

Categories
5G SA Mobile Networks RFCs & Standards

Meta: 5G on this Blog

No talk of Augmented Reality, Holographic Video calls, 5G cities. Just info about real 5G topics for nerds.

Categories
5G SA EPC LTE Mobile Networks

CUPS – Control and User Plane Separation in LTE & NR with PFCP (Sx & N4)

A look at PFCP for the Sx and N4 Interfaces