cosmetic: tweak README
I noticed that the README is prominently shown on github, so it makes sense to get rid of the worst typos and misinformation there. Change-Id: I60defef6224a78bb84d7d0b57bc8da17ad7877bb
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README
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README
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Repository forw the Osmocom BTS implementation.
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= Repository for the Osmocom BTS implementation. =
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This code implementes the Layer 2 and higher of a more or less
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conventional GSM BTS (Base Transceiver Station) - however, using an
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Abis/IP interface, rather than the old-fashioned E1/T1.
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For most complete and accurate information, please refer to
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https://osmocom.org/projects/osmobts/wiki
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To submit patches, please refer to
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https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit
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(Note: github pull requests are rejected by a bot)
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== Summary ==
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This code implements Layer 2 and higher of a more or less conventional GSM BTS
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(Base Transceiver Station) - however, using an Abis/IP interface, rather than
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the old-fashioned E1/T1.
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Specifically, this includes
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* BTS-Side implementation of TS 08.58 (RSL) and TS 12.21 (OML)
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* BTS-Side implementation of LAPDm (using libosmocore/libosmogsm)
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* A somewhat separated interface between those higher layer parts
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and the Layer1 interface.
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* BTS-side implementation of TS 08.58 (RSL) and TS 12.21 (OML)
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* BTS-side implementation of LAPDm (using libosmocore/libosmogsm)
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* A somewhat separated interface between those higher layer parts and the
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Layer1 interface.
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Right now, only one hardware and Layer1 are supported: The sysmocom
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sysmoBTS.
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There is some experimental and way incomplete code to use a couple of
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OsmocomBB phones and run them in the BTS. However, the required code
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for the Calypso DSP code have not been written yet. This would still
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require a lot of work.
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Some additional work is being done in using some parts of the OpenBTS
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L1FEC and glue it against omso-bts. This code is called osmo-trx and
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requires the jolly/trx branch of this repository.
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Several kinds of BTS hardware are supported:
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* sysmocom sysmoBTS
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* Octasic octphy
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* Nutaq litecell 1.5
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* software-defined radio based osmo-bts-trx (e.g. B210)
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== Known Limitations ==
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* Doesn't yet include MAC address in Abis/IP Identity message
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* MphConfig.CNF can be returned to the wrong callback. E.g. with Tx Power
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and ciphering. The dispatch should take a look at the hLayer3.
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