Categories
GSM Mobile Networks

GSM with Osmocom: OsmoSGSN for Packet Data

Configuring the Osmocom Serving Gateway Support Node (SGSN) for 2G/3G networks.

Categories
EPC GSM LTE Mobile Networks Uncategorized

Getting TEID up with GTP Tunnels

What’s the deal with Tunnel Endpoint Identifiers and what do they do?

Categories
GSM Mobile Networks RF

GSM with Osmocom: Channel Types

When setting up the timeslots on the TRX for each BTS on your BSC, you’ll notice you have to set a channel type. So what do these acronyms mean, and how do they affect the performance of the network? GSM channels break down into one of to categories, control channels – used for signalling, and […]

Categories
GSM Mobile Networks RF

GSM with Osmocom: GPRS & Packet Data

So far we’ve focused on building a plain “2G” (voice and SMS only) network, which was all consumers expected twenty years ago. As the number of users accessing the internet through DSL, Dial Up & ISDN grew, the idea of getting this data “on the go” became more appealing. TCP/IP was becoming the dominant standard […]

Categories
GSM Mobile Networks RF Software

Configuring YateBTS for Software Defined GSM/GPRS

Configuring YateBTS NIPC with a BladeRF Software Defined Radio

Categories
RF Software

Compiling YateBTS NIPC for Software Defined GSM / GPRS

Setting up YateBTS GSM BTS in Ubuntu 18.04