Change in osmo-pcu[master]: gprs_rlc_ts_alloc: ensure no rolling slots are allocated

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lynxis lazus gerrit-no-reply at lists.osmocom.org
Fri Jan 15 15:50:41 UTC 2021


lynxis lazus has submitted this change. ( https://gerrit.osmocom.org/c/osmo-pcu/+/22114 )

Change subject: gprs_rlc_ts_alloc: ensure no rolling slots are allocated
......................................................................

gprs_rlc_ts_alloc: ensure no rolling slots are allocated

When allocating multiple slots for a UE the following example
is not allowed 'UU----UU' for a UE class 12.
The time slot number can not roll over 7 and move to 0.
44.060 or 45.002 only specifies contigous however it was unclear
it this is an allowed pattern.

Only the example 45.002 B.3 in release 12 cleared this up.
It gives an example for a multi slot class 5 UE which has 7 possible
configuration this means the rolled over is not allowed.

Multislot class type 2 UE doesn't have this limitation.
Further if a UE supports 8 time slots this is not a limitation because
the window size (45.002 B.1) can include all time slots.

Releated: SYS#5073
Change-Id: I16019bdbe741b37b83b62749b840a3b7f4ddc6c7
---
M src/gprs_rlcmac_ts_alloc.cpp
M tests/alloc/AllocTest.err
M tests/alloc/MslotTest.ok
3 files changed, 19,376 insertions(+), 19,361 deletions(-)

Approvals:
  pespin: Looks good to me, approved
  Jenkins Builder: Verified




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Gerrit-Project: osmo-pcu
Gerrit-Branch: master
Gerrit-Change-Id: I16019bdbe741b37b83b62749b840a3b7f4ddc6c7
Gerrit-Change-Number: 22114
Gerrit-PatchSet: 3
Gerrit-Owner: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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