3GPP Long Term Evolution (4G)
I’d been trying for some time to get Kamailio acting as a Diameter Routing Agent with mixed success, and eventually got it working, after a few changes to the codebase of the ims_diameter_server module. It is rather unstable, in that if it fails to dispatch to a Diameter peer, the whole thing comes crumbling down, […]
Introducing YAML based config files for defining how PyHSS should be setup
Peculiar padding problem perplexes poor programmer.
Info on PyHSS new support for SCTP as well as TCP.
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.
How SR-IOV and DPDK play into faster performance of Virtual Network Functions (VNFs) for 3GPP core networks.
A look at the Confidentiality Algorithms used in 3GPP Networks, MILENAGE, XOR & Comp128
Our BTS is going to need an accurate clock source in order to run, so without access to crazy accurate Timing over Packet systems or TDM links to use as reference sources, I’ve opted to use the GPS/GLONASS receiver built into the LMPT card. Add new GPS with ID 0 on LMPT in slot 7 […]
A look at APDUs and Interacting with Cards
The basics of Smart Cards & their File System
Getting up close and personal with Smart Card / SIM Cards
A look at how Cell Broadcast is signalling implemented between the MME and CBC in an LTE/EPC network.
This post is one in a series documenting my adventures attempting to configure a used BTS 3900 to function as a eNB in my lab. There are 5 network ports on the LMPT card: 2x SFP cages – SFP 0 and SFP 1 1x 10/100 Ethernet port – ETH – Used to access the Local […]
Learning Huawei’s flavour of MML – Man Machine Language for the BTS 3900 series Macro Base Stations.
Meta: This post is a series chronicling my adventures with a second hand Huawei BTS3900 I purchased. You can find an index of these posts here. So you purchased a used Macro base station online, good for you. Now you need to know how to configure it. First things first, you’ll need to connect to […]
Picking and validating antenna selection for the new RAN project in my lab.
How I ended up with a Macro LTE eNodeB (Huawei BBU3900) and getting it running.
Comparing the Control Plane signalling in 5GC compared to EPC.