|Cellular Modem Information||
collects various bits of (low-level technical) information on cellular modems
|Altair LTE Modems||
Information about the Altair "FourGee" 3100 - 3800 LTE modems
|Huawei HiSilicon Cellular Modems||
Information collected on Huawei cellular modems
|Qualcomm Linux Modems by Quectel & Co||
Information / Research on the internals of Qualcomm Linux based cellular modems available from Quectel and other vendors
Osmocom tool for Qualcomm DIAG
|Cellular Network Infrastructure||
This is a group of Osmocom programs implementing cellular network infrastructure components for GSM, GPRS, EDGE, UMTS, HSPA, LTE and their associated interfaces and protocol stacks.
This includes components for classic circuit-switched GSM:...
legacy and/or unmaintained CNI projects
An utility to convert the circuit-switched A interface of a BSplus into SCCP-lite A-over-IP
This project contains proof-of-concept code to send GPS assistance data to mobile phones using RRLP (Radio Resource Location Protocol) as well as inquiring/obtaining their geolocation using RRLP queries. It uses OsmoNITB to operate the GSM network, and a u-blox GPS receiver to obtain the assistance data....
|Core Network (CN)|
The Osmocom Gb Proxy is a proxy for the 3GPP Gb interface (between BSS/PCU and SGSN). It allows you to aggregate many Gb links/connections into one. It also has the ability to convert between different Gb interface protocol stacking, such as from Gb-over-FrameRelay to Gb-over-IP....
OsmoBSCNAT is an A-interface aggregator that can aggregate many A-interface links from many BSCs and present them as one A interface towards a MSC. Most normal networks will not need this component, it only serves some special use case scenarios. It requires SCCPLite and doesn't work with 3GPP AoIP....
Osmocom Cell Broadcast Centre (CBC). It is the heart of the Cell Broadcast Service (CBS) as well as a variety of disaster/emergency warning systems (PWS).
The Diameter to GSUP (HLR) adapter (OsmoDia2GSUP) enables you to connect osmo-hlr to a 4G MME. It speaks GSUP with osmo-hlr and Diameter/S6a with the MME (hence the name).
|OsmoGGSN (former OpenGGSN)||
OsmoGGSN is an Open Source implementation of a GGSN (Gateway GPRS Support Node). It is the successor to OpenGGSN and provides a Gp (GTP v0/v1) interface towards SGSNs like OsmoSGSN and a Gi interface towards the IP network. It supports Linux kernel GTP-U acceleration via a linux-kernel-gtp-u....
|Linux Kernel GTP-U||
This is an implementation of the GTP-U (user plane) inside the Linux kernel. Originally developed within Osmocom, it was brought further in cooperation by Travelping, and is now in mainline Linux since 4.7.0. You can use it as a high-performance user plane e.g. from OsmoGGSN...
An Open Source implenentation of a HNB-GW (HomeNodeB-Gateway), implementing the Iuh, IuCS and IuPS interfaces. It aggregates the Iuh links from femtocells (hNodeBs) and presents them as regular IuCS and IuPS towards MSC and SGSN (such as OsmoMSC and OsmoSGSN). It uses M3UA as signaling transport....
Osmocom STP (Signal Transfer Point), implementing SS7 (MTP) routing and SIGTRAN Signalling Gateway functionality. Supports SIGTRAN only, no legacy E1/T1 based signaling links. Currently only MTP-level routing no GTR or GTT yet, but contributions in that area are very welcome....
Distributed GSM architecture, suitable for de-centralized, autonomous networks with intermittent connectivity.
A program to record traffic on E1 or T1 TDM interfaces to disk. This provides tcpdump-like functionality for TDM interfaces. You can configure on a per-timeslot bases if the raw bitstream should be recorded, or if a HDLC decoder should be used. Requires a high-impedance tap and two E1/T1 ports per link you want to monitor (one for Rx, one for Tx)....
|osmo-ePDG - VoWifi Evolved Packet Data Gateway||
plan for upcoming open source ePDG (IPsec cateway for VoWiFi)
This is a python-based test framework by which we can control a set of BTSs and Modems to execute full-system end-to-end verification tests. We use this within Osmocom to du full end-to-end testing with all our network elements and real BTS + RF + Modem Hardware....
Osmocom Serving Mobile Location Center
|Radio Access Network||
Osmocom Radio Access Network (RAN), consisting of projects like osmotrx, osmobts, osmobsc, osmopcu and osmo-hnodeb
OsmoBSC is an Open Source BSC (GSM Base Station Controller) with A-bis/IP and A/IP interface. It supports a variety of BTS Vendors/Models, including some Siemens, Nokia, Ericsson and ip.access models. However, main focus during the last 5+ years is OsmoBTS based BTSs....
OsmoBTS is an Open Source GSM BTS (Base Transceiver Station) with A-bis/IP interface. It implements support for a variety of PHY/Hardware, such as sysmocom sysmoBTS, OCTSDR-2G and LiteCell 1.5, but also general-purpose SDR boards such as USRP or LimeSDR via OsmoTRX....
This is a first step towards implementing a minimal hNodeB upper layer part, mainly handling HNBAP/RUA/RANAP messages on the Iuh interface. This is not expected to be a full / usable hNodeB anytime soon [if ever].
OsmoTRX is a GSM Radio Modem based on a fork of the OpenBTS Transceiver program. It is intended to be used with the osmo-bts-trx variant of OsmoBTS in order to build GSM base stations with Abis/IP interface from general purpose SDR hardware such as USRP or LimeSDR devices....
|Erlang Core Network Signalling Projects||
A set of almost complete Erlang projects implementing the core network protocol stacks from SS7/SIGTRAN over SCCP up to TCAP, MAP and CAP.
Currently not actively maintained due to lack of active customer/user interest.
Erlang MGW NAT/MASQ implementation
Erlang implementation of a TCPAP+MAP codec (encoding/decoding). You most likely want to use signerl, not this.
Erlang implementation of SCCP (ITU-T Q.71x)
Erlang implementation of M2UA/M3UA/MTP3/SCCP/ISUP codec + utils
Erlang implementation of TCAP + MAP Signalling Protocols, runs on top of osmo_ss7 and osmo_sccp
A collection of various small (and not so small) hardware projects created as tools to the cellular research community
|E1/T1 Hardware Interface (including icE1usb)||
This is about various projects implementing diffrent types of E1/T1 interfaces, including osmo-e1-xcvr, as well as a passive e1-tracer and icE1usb, our latest ICE40 FPGA based USB-E1 adapter.
Osmocom E1 daemon; used as a "software defined" implementation of E1, where the framer and HDLC controller is implemented inside osmo-e1d and a relatively simple hardware (such as USB attached hardware) interfaces with the actual E1 physical line.
|E1/T1 Tap Adapter||
￼The Osmocom E1/T1 tap adapter allows you to tap into the communication of an E1/T1 line.
This is useful for tracing/analyzing communications on any type of E1/T1 based interface, such as A-bis, A and core network interfaces in GSM networks, as well as classic ISDN networks....
|M.2 (NGFF) WWAN modem + SIM Card emulation board||
This is a carrier board for M.2 (NGFF) type cellular / WWAN modems with integrated SIMtrace2.It allows you to insert a M.2 modem from any vendor, and it will provide you with:
|M.2 (NGFF) WWAN modem USB breakout board||
This is a small break-out board for M.2 (NGFF) type cellular / WWAN modems.It allows you to insert a M.2 modem from any vendor, and it will provide you with:
|Misc Hardware Projects||
Various uncategorized small hardware projects that don't each deserve their own redmine project
|mPCIe WWAN modem USB breakout board||
This is a small break-out board for miniPCIe (mPCIe) type cellular / WWAN modems.It allows you to insert a mPCIe modem from any vendor, and it will provide you with:
|multi-voltage USB UART||
A small USB UART board with two CMOS UARTs exposed on 2.54mm headers.
The logic voltage can be manually selected at 1.8, 2.3, 2.5, 2.8, 3.0 or 3.3V