Osmocom GSM/GPRS/EGPRS transceiver, originally forked from OpenBTS transceiver. For building SDR based GSM BTS with osmo-bts-trx.
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Vadim Yanitskiy 1ddd727bb4 ipc-driver-test: clean up variables in Makefile.am
* AM_CPPFLAGS is for preprocessor flags like '-I' or '-D',
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* Link ipc-driver-test against libdevice.la,
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Change-Id: Iafd68974c9c613fb4e65a01d076b2c687b716c83
2023-03-14 13:16:09 +00:00
CommonLibs clean up mutex, scopedlock, and signal classes 2022-12-23 13:41:30 +00:00
GSM Add SPDX annotation 2019-07-22 12:06:26 +02:00
Transceiver52M ipc-driver-test: clean up variables in Makefile.am 2023-03-14 13:16:09 +00:00
config build: Require and check for gcc C++11 support 2017-06-09 11:19:20 -07:00
contrib Bump version: → 1.5.0 2023-02-07 17:08:18 +01:00
debian Bump version: → 1.5.0 2023-02-07 17:08:18 +01:00
doc manual: Fix typo OsmTRX -> OsmoTRX 2021-01-07 14:07:14 +01:00
osmocom-bb@c209242d19 ms: update submodule to currently known working version 2023-03-02 18:22:37 +01:00
tests tests: LMSDeviceTest: fix CPPFLAGS vs CXXFLAGS 2023-03-11 05:33:37 +07:00
utils prbs-tool: Don't require C99 2020-05-07 23:55:56 +02:00
.checkpatch.conf add checkpatch config 2022-12-02 14:45:17 +01:00
.clang-format .clang-format: adjust template formatting 2023-03-02 18:22:37 +01:00
.gitignore ms-trx support 2022-12-23 13:41:13 +00:00
.gitmodules properly update osmocom-bb submodule, for real this time.. 2022-12-22 16:15:42 +00:00
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COPYING cosmetic: fix several typos found by codespell 2020-02-25 17:03:00 +01:00
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Makefile.common build: Fix make distcheck 2018-04-27 11:34:11 +02:00
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TODO-RELEASE Bump version: → 1.4.0 2021-11-16 16:27:26 +01:00
configure.ac configure.ac: check if LIBTRXCON_DIR (submodule) exists 2023-02-10 22:08:35 +07:00
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About OsmoTRX

OsmoTRX is a software-defined radio transceiver that implements the Layer 1 physical layer of a BTS comprising the following 3GPP specifications:

  • TS 05.01 "Physical layer on the radio path"
  • TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
  • TS 05.04 "Modulation"
  • TS 05.10 "Radio subsystem synchronization"

OsmoTRX is originally based on the transceiver code from the OpenBTS project, but setup to operate independently with the purpose of using with non-OpenBTS software and projects, specifically within the Osmocom stack. Used together with OsmoBTS you can get a pretty standard GSM BTS with Abis interface as per the relevant 3GPP specifications.


The official homepage of the project is https://osmocom.org/projects/osmotrx/wiki/OsmoTRX

GIT Repository

You can clone from the official osmo-trx.git repository using

    git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-trx`

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-trx


Doxygen-generated API documentation is generated during the build process, but also available online for each of the sub-libraries at User Manual for OsmoTRX can be generated during the build process, and is also available online at https://ftp.osmocom.org/docs/latest/osmotrx-usermanual.pdf.

Mailing List

Discussions related to OsmoTRX are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.


Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details

The current patch queue for OsmoTRX can be seen at https://gerrit.osmocom.org/q/project:osmo-trx+status:open