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Revision 6 (ipse, 02/19/2016 10:47 PM) → Revision 7/32 (plotr, 02/19/2016 10:47 PM)

= OsmoBTS = 

 OsmoBTS is a software part of a BTS, which implements Layer 1, Layer 2 and Layer 3: 
  * LAPDm (GSM 04.06) 
  * RTP 
  * A-bis/IP (similar to ip.access nanoBTS) 
  * OML (GSM 12.21) 
  * RSL (GSM 08.58) 

 OsmoBTS is building up on work done previosuly for [wiki:OpenBSC] (RSL, OML, RTP) and [http://bb.osmocom.org OsmocomBB] (LAPDm). A-bis/IP implementation is heavily inspired by ip.access nanoBTS A-bis/IP implementation. 

 OsmoBTS is written in a re-targettable way, i.e. it should be relatively easy to target a new BTS hardware (i.e. BTS-side Layer 0 or Layer 1) with it. 

 == Hardware support == 

 So far OsmoBTS supports a number of hardware options: 
  * Quad-band femto-BTS product called [http://www.sysmocom.de/products/sysmobts sysmoBTS] which is sold by [http://sysmocom.de/ sysmocom] 
  * Wideband SDR transceiver hardware [https://code.google.com/p/umtrx/ UmTRX] sold by [https://fairwaves.ru fairwaves] and a number of other SDR transceivers, using OpenBTS transceiver software. 
  * A pretty crazy experimental BTS hardware based on two OsmocomBB phones had originally been supported, but needs to be re-integrated with core code changes. 

 Check out [wiki:network_from_scratch] page for more information how to run OsmoBTS with UmTRX (using the OpenBTS transceiver software) or OsmocomBB phones. 

 == Status == 

 The source code includes a    http://cgit.osmocom.org/cgit/osmo-bts/tree/README file with current status information 

 == GPRS support == 

 osmo-bts has recently been extended with a socket interface towards [wiki:osmo-pcu]. This adds GPRS (and later EDGE) support to it. 

 == Source code == 

 The source code is available from git.osmocom.org (module osmo-bts). 

 Public read-only access is available via 
  git clone git://git.osmocom.org/osmo-bts.git git://git.osmocom.org/osmo-bts 
 You can browse it via cgit: http://cgit.osmocom.org/cgit/osmo-bts/ 

 == Authors == 

 OsmoBTS was developed mainly by Andreas Eversberg and Harald Welte.
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