Osmocom GSM/GPRS/EGPRS transceiver, originally forked from OpenBTS transceiver. For building SDR based GSM BTS with osmo-bts-trx.
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Harald Welte 6ee9dccddb osmo-trx-uhd: Make sure HOME environment variable is set
It turns out that uhd versions >= *require* that either the
HOME or the XDG_CONFIG_HOME variables are set, and otherwise will
terminate the program.

Change-Id: I1816013c507da28719590f063da0a397da656a10
Closes: OS#6269
2023-11-24 10:38:34 +01:00
CommonLibs transceiver: add experimental viterbi equalizer support 2023-08-25 13:18:04 +00:00
GSM Add SPDX annotation 2019-07-22 12:06:26 +02:00
Transceiver52M devices: fix wrong gain to power mapping 2023-11-09 09:51:07 +00:00
config build: Require and check for gcc C++11 support 2017-06-09 11:19:20 -07:00
contrib osmo-trx-uhd: Make sure HOME environment variable is set 2023-11-24 10:38:34 +01:00
debian Bump version: → 1.6.0 2023-09-12 15:56:58 +02:00
doc manual: Fix typo OsmTRX -> OsmoTRX 2021-01-07 14:07:14 +01:00
osmocom-bb@a41ca4bbc4 osmo-trx-ms: bump osmocom-bb submodule commit 2023-10-03 23:57:24 +07:00
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
.gitreview Add gerrit settings 2017-01-24 15:03:48 +01:00
COPYING cosmetic: fix several typos found by codespell 2020-02-25 17:03:00 +01:00
LEGAL Update legal disclaimer 2018-01-04 15:17:27 +01:00
Makefile.am configure.ac: allow building without cloning submodules 2022-12-28 04:38:07 +07:00
Makefile.common build: Fix make distcheck 2018-04-27 11:34:11 +02:00
README.md update git URLs (git -> https; gitea) 2022-06-18 13:52:06 +02:00
TODO-RELEASE Bump version: → 1.4.0 2021-11-16 16:27:26 +01:00
configure.ac Bump version: → 1.6.0 2023-09-12 15:56:58 +02:00
git-version-gen update git-version-gen to generate proper version numbers 2018-09-04 18:01:35 +00:00


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