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http://cgit.osmocom.org/osmo-pcu/commit/?id=520c2919f4bf5d0d0d6dd254e8d76a6876b3b481
commit 520c2919f4bf5d0d0d6dd254e8d76a6876b3b481
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Jul 10 19:52:37 2015 +0200
tbf: Put the TBF list into the PDCH objects (TODO)
Currently the TBFs are registered in a TFI indexed array within the TRX
objects. TBFs can be searched globally by TFI and TRX number. This
conflicts with the use of the same TFI for different TBF on different
PDCH. This use case requires the specification of the PDCH as
additional search dimension.
This commit moves the TFI index TBF arrays into the PDCH objects. The
related methods are updated accordingly.
Sponsored-by: On-Waves ehf
TODO:
- corner case tests, e.g. for tfi_find_free
- add test cases that crash without this fix
- move this commit in front of "Allocate TFI per slot (algorithm A)"
to avoid a non-operational version
http://cgit.osmocom.org/osmo-pcu/commit/?id=509fdb69a9e2036b55cac7f954f9343b6c77d5af
commit 509fdb69a9e2036b55cac7f954f9343b6c77d5af
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Jul 10 12:25:25 2015 +0200
alloc: Allocate TFI per slot (algorithm A)
Currently the TFI are managed per TRX, thus only a maximum of 32 TBF
per direction and per TRX are possible simultaneously.
This commit modifies algorithm_a() to allow the sharing of TFI
between different PDCH. Since algorithm A only assigns a single slot
to each TBF, the TFI of each PDCH can be assigned independently.
This increases the maximum to 32 TBF per direction and per PDCH
concerning the TFI allocation.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=8b7c196e9047073de6c7d4ff2857562ce0368303
commit 8b7c196e9047073de6c7d4ff2857562ce0368303
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Fri Jul 10 10:41:36 2015 +0200
tbf: Move TFI selection into alloc_algorithm
Currently the TFI and the TRX have to be determined before the actual TBF
allocation function is called, passing TFI and TRX number as
parameters. This does fit to TFI reuse for different slots, since
this were tightly coupled with the slot selection.
This commit just moves the TFI selection into the alloc_algorithm
functions. The tfi parameter is removed from the the TFI alloc
functions. The trx parameter is changed into use_trx to optionally
limit the trx selection (same semantics like in tfi_find_free).
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=03ecaff5834c949058dd128a9e4f4a549db9bcf5
commit 03ecaff5834c949058dd128a9e4f4a549db9bcf5
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Jul 8 12:53:16 2015 +0200
pdch: Manage TFIs per direction
Currently a single bit set is used to maintain a set of used TFI
without distinguishing between uplink and downlink. Since the
namespaces of UL and DL TFI are separate, this implementation is
not correct.
This commit changes gprs_rlcmac_pdch to use a separate bit set for
each direction. It also replace the corresponding conditional fprintf
statement in check_tfi_usage (AllocTest.cpp) by an equivalent
OSMO_ASSERT.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=cb80e6abb755bb6711a56388eb709f0995de9b1c
commit cb80e6abb755bb6711a56388eb709f0995de9b1c
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jul 9 11:35:50 2015 +0200
alloc/test: Check for TFI conflicts
This commit adds the check_tfi_usage function that checks the TFI
usage. It iterates through all TBFs, records on which PDCH it uses
which TFI and check for conflicts. It also checks the bits returned
by pdch->assigned_tfi(). The latter suffers from an bug in that
method (no separation of uplink and downlink), so a conditional
fprintf is used instead of an assertion.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=f297ac8e06506ddce1ab629bbc36f4fa402af915
commit f297ac8e06506ddce1ab629bbc36f4fa402af915
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Wed Jul 8 12:18:33 2015 +0200
alloc: Fix MS_B/MS_C interpretation
Currently the handling of MS_B and MS_C is not compliant with TS
45.002, annex B.1. These values may only interpreted as 0, if
frequency hopping is not enabled and if there is no change from Rx to
Tx or vice-versa.
This commit sets Ttb/Trb to 1 if the table entry is MS_B/MS_C, since
only combined down/up access modes are supported.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=17ac3f7a1bd67aad0e0682d29d5356f193403f02
commit 17ac3f7a1bd67aad0e0682d29d5356f193403f02
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jul 9 12:06:56 2015 +0200
alloc: Do not use masking for multislot class type 2 MS
Currently the masks are computed equally for each class type. This
does not make much sense for class type 2 MS, since those are capable
to work in full duplex mode.
This commit sets the masks to 0xff for class type 2 MS.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=acbf887cf8fcbd56fa3fd620cb46978210398bc9
commit acbf887cf8fcbd56fa3fd620cb46978210398bc9
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Mon Jul 6 14:55:13 2015 +0200
alloc: Select applicable Tta/Tra
According to TS 45.002, 6.4.2.2 the choice whether Tta or Tra has to
be applied, depends on the medium access mode (currently always
dynamic) and the number of UL/DL slots. Currently either value can be
used which might result in combinations not covered by the spec.
This commit changes find_multi_slots() to skip non-compliant
combinations.
Note that this code will have to be extended, if other medium
access modes are implemented.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=a8af58d7d5e44b175749290ef2a76f47fb714ac2
commit a8af58d7d5e44b175749290ef2a76f47fb714ac2
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jul 9 11:48:23 2015 +0200
alloc: Use an enum instead of numbers to select the mask
The local enums MASK_TT and MASK_TR replace the hard coded indices.
The variable m_idx is renamed to mask_sel for more clarity.
Sponsored-by: On-Waves ehf
http://cgit.osmocom.org/osmo-pcu/commit/?id=3a0635c0145e5c814945b30d7eea50d3fd76b851
commit 3a0635c0145e5c814945b30d7eea50d3fd76b851
Author: Jacob Erlbeck <jerlbeck at sysmocom.de>
Date: Thu Jul 9 13:44:18 2015 +0200
alloc: Merge find_least_busy_pdch and find_least_reserved_pdch
Both functions only differ in the computation of the value for
num_tbfs.
This commit merge both functions and adds a parameter containing a
function for that compuation.
Sponsored-by: On-Waves ehf
-----------------------------------------------------------------------
Summary of changes:
src/bts.cpp | 147 +++---
src/bts.h | 22 +-
src/gprs_rlcmac.h | 6 +-
src/gprs_rlcmac_ts_alloc.cpp | 315 +++++++++----
src/llc.cpp | 2 +-
src/tbf.cpp | 65 +--
src/tbf.h | 5 +-
src/tbf_dl.cpp | 17 +-
tests/alloc/AllocTest.cpp | 214 +++++----
tests/alloc/AllocTest.err | 29 +-
tests/alloc/AllocTest.ok | 1016 ++++++++++++++++++++++++++----------------
tests/tbf/TbfTest.cpp | 10 +-
tests/tbf/TbfTest.err | 324 +++++++-------
13 files changed, 1283 insertions(+), 889 deletions(-)
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