Quirks and gotchas of working with SMS on IMS on iPhones.
Category: 5G SA
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.
Categories
Backing up and Restoring Open5GS
How to backup and restore Open5Gs config between servers
How GTP is extended in 5G Core Networks to support extra QoS functionality like Reflective QoS and Delay Indicators
Categories
Framed Routing in 5G
5GC includes native support for framed-routing.
Categories
Reflective QoS in 5G
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.
Categories
SMS in 5GC
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
Categories
Open5GS without NAT
Setting up Open5Gs without a NAT requirement, and the routing required to do so.
As the number of Private Networks built on LTE and 5G grow, how will PLMN allocation be managed?
Categories
IMS Routing with iFCs
Peer behind the magic curtain at how IMS networks route your VoLTE and VoNR calls, and how iFC (Initial Filter Criteria) achieve this.
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.
How to find a subscriber location within the network.
Thanks to some recent developments, PyHSS has had a major overhaul recently, and is getting better than ever, Some features that are almost ready for public release are: Config File Instead of having everything defined all over the place a single YAML config file is used to define how the HSS should function. SCTP Support […]
A look at MTU and its role in LTE and 5G Transmission.
A look at the Confidentiality Algorithms used in 3GPP Networks, MILENAGE, XOR & Comp128