22 Mar
2017
22 Mar
'17
7:33 p.m.
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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/osmo-trx/commit/?id=38b69871ae87506c21a6b53ba418139…
commit 38b69871ae87506c21a6b53ba418139d24305590
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Fri Mar 17 18:20:09 2017 -0700
BitVector: Convert SoftVector from 0..1 to -1..+1 soft bits.
This makes code simpler and will allow us send -127..127 soft bits towards
osmo-bts instead of 0..255 bits.
Change-Id: I16ecc3d4c829dcf0f619ad995bc9d4a4ed8af0a4
http://cgit.osmocom.org/osmo-trx/commit/?id=7db522b6d951413d7d62f9c7e52a9b2…
commit 7db522b6d951413d7d62f9c7e52a9b2100622399
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Fri Mar 17 18:00:50 2017 -0700
BitVector: Remove convolutional codec - we don't use it in osmo-trx.
Now we have more fexibility in how we represent SoftVector, since we
no longer depend on the particular convolutional codec implementation.
Change-Id: I3006b6a26c5eff59dbe9c034f689961802f1d0d0
http://cgit.osmocom.org/osmo-trx/commit/?id=ae09b04e26068182b870d7e136e25ee…
commit ae09b04e26068182b870d7e136e25eeb3767396a
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Wed Mar 15 21:26:06 2017 +0300
CommonLibs: Print soft bits with less confidence to console when printing a soft
vector.
We use other symbols to show that these bits has less confidence:
o and . for 0 with less confidence
| and ' for 1 with less confidence
Change-Id: I747a17568ee48f1f3163e8dfab2e450af85e6435
http://cgit.osmocom.org/osmo-trx/commit/?id=b61c610cd964107aea2ccdf26157523…
commit b61c610cd964107aea2ccdf261575237d07ea994
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Fri Mar 17 18:22:19 2017 -0700
Call vectorSlicer() right before packing bits for transmission to osmo-bts.
vectorSlicer() converts soft-bits from -1..+1 to 0..1 while we want
to keep SoftVector in -1..+1 mode until the last minute, because at some
point we'll want to transmit -1..+1 to osmo-bts instead of converting it
from 0..1 back to -1..+1 on the osmo-bts side.
Plus it removes code duplication - we call it once instead of twice.
Change-Id: Idd6ddd7ac219afb0df055a692632678b66373764
http://cgit.osmocom.org/osmo-trx/commit/?id=132fb247b101292818afaf72f7508b5…
commit 132fb247b101292818afaf72f7508b594625cc25
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Fri Mar 17 17:22:33 2017 -0700
sigProcLib: Slice SoftVector instead of signalVector for GMSK demod.
This makes it similar to 8-PSK demod and also saves a bit of lines ofcode and
should give us a tiny improvement in performance.
Ideally we need to remove vector slicing at all, because in osmo-bts-trx
we convert back to +-1.0 again (actually to +-127, but it doesn't mater).
So we should rather transmit +-1.0 values to avoid double conversion.
Change-Id: If9ed6f0f80fbe88c994b2f9c3cae91d0d57f4442
http://cgit.osmocom.org/osmo-trx/commit/?id=1c0b8b355ccbb31048973e838933d0e…
commit 1c0b8b355ccbb31048973e838933d0e29039ad32
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Fri Mar 17 16:12:47 2017 -0700
sigProcLib: Rename demodulateBurst() to demodGmskBurst() for clarity.
Change-Id: Ibcef8d7d4a2c06865bed7e4091ccc8dbbd494d77
http://cgit.osmocom.org/osmo-trx/commit/?id=1dd05cf35a8c5e3c2acfbc4e23e26d4…
commit 1dd05cf35a8c5e3c2acfbc4e23e26d41ea4a9aa9
Author: Alexander Chemeris <Alexander.Chemeris(a)gmail.com>
Date: Wed Mar 15 23:23:36 2017 +0300
sigProcLib: make energyDetect() simpler by returning actual energy.
Change-Id: I9bf97f2dc03fea9bebcf43198dfb05f6e4694e9c
-----------------------------------------------------------------------
Summary of changes:
CommonLibs/BitVector.cpp | 257 ++---------------------------------------
CommonLibs/BitVector.h | 149 +-----------------------
CommonLibs/BitVectorTest.cpp | 28 -----
Transceiver52M/Transceiver.cpp | 9 +-
Transceiver52M/sigProcLib.cpp | 53 ++++-----
Transceiver52M/sigProcLib.h | 26 ++---
6 files changed, 52 insertions(+), 470 deletions(-)
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OpenBTS' transceiver retro-fit