README: update some of the limitations
Change-Id: Ifec983e02ce517d4fe17d595b65312c53b0429b7
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README.md
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README.md
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@ -77,7 +77,7 @@ https://gerrit.osmocom.org/#/q/project:osmo-bts+status:open
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Known Limitations
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Known Limitations
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=================
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=================
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As of August 20, 2015, the following known limitations exist in this
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As of March 17, 2017, the following known limitations exist in this
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implementation:
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implementation:
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Common Core
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Common Core
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@ -86,8 +86,6 @@ Common Core
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* No Extended BCCH support
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* No Extended BCCH support
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* System Information limited to 1,2,2bis,2ter,2quater,3,4,5,6,9,13
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* System Information limited to 1,2,2bis,2ter,2quater,3,4,5,6,9,13
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* No RATSCCH in AMR
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* No RATSCCH in AMR
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* No OML (TS 12.21) alarms yet (temperature, ...)
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* Only single-TRX BTS at this point
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* Will reject TS 12.21 STARTING TIME in SET BTS ATTR / SET CHAN ATTR
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* Will reject TS 12.21 STARTING TIME in SET BTS ATTR / SET CHAN ATTR
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* No support for frequency hopping
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* No support for frequency hopping
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* No reporting of interference levels as part of TS 08.58 RF RES IND
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* No reporting of interference levels as part of TS 08.58 RF RES IND
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@ -106,6 +104,24 @@ osmo-bts-sysmo
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* No multi-TRX support yet, though hardware+L1 support stacking
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* No multi-TRX support yet, though hardware+L1 support stacking
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* Makes no use of 12.21 Intave Parameters and Interference
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* Makes no use of 12.21 Intave Parameters and Interference
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Level Boundaries
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Level Boundaries
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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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* 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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and ciphering. The dispatch should take a look at the hLayer3.
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osmo-bts-octphy
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---------------
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* No support of EFR, HR voice codec (lack of PHY support?)
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* No re-transmission of PHY primitives in case of time-out
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* Link Quality / Measurement processing incomplete
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* impossible to modify encryption parameters using RSL MODE MODIFY
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* no clear indication of nominal transmit power, various power related
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computations are likely off
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* no OML attribute validation during bts_model_check_oml()
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osmo-bts-trx
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------------
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* TCH/F_PDCH cannel not working as voice (https://osmocom.org/issues/1865)
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* No BER value delivered to OsmoPCU (https://osmocom.org/issues/1855)
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* No 11bit RACH support (https://osmocom.org/issues/1854)
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* No CBCH support (https://osmocom.org/issues/1617)
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