Add support for 'dl_min_mcs' and 'ul_min_mcs' configuration parameters
Add support for 'dl_min_mcs' and 'ul_min_mcs' configuration parameters,
they will enforce the gNB scheduler to select always a MCS equal or
above its values
In addition to use a min value for MCS, this MR also enables the testing
of a specific MCS value with COTS UE, by setting
xl_min_mcs = xl_max_mcs
example:
dl_min_mcs: 22
dl_max_mcs: 22
ul_min_mcs: 7
ul_max_mcs: 7
In the example above, the scheduler will use always MCS 22 for downlink
and MCS 7 for uplink.
RedCap InitialBWP
Prevent RedCap UEs to move to DedicatedBWP
This allows the coexistence of RedCap UEs and non-RedCap UEs in the
same cell by having an InitialBWP with 20MHz and a larger
DedicatedBWP.
Update example RedCap configuration file to have 20 MHz InitialBWP and
40 MHz DedicatedBWP
Avoid accessing current_DL_BWP structure when scheduling DCI for other SIBs
Avoid access to mac->current_DL_BWP structure when scheduling DCI for
SIBs other than 1. This is not needed and can cause NULL pointer access
which can happen if the UE has released MAC configuration or has not
started RA yet.
sched_ctrlCommon earlier
This MR configures sched_ctrlCommon earlier, in RCconfig_nr_macrlc().
The objective of this MR is to solve the following Assert in the F1 test:
19897952.126019 [NR_MAC] I Adding new UE context with RNTI 0x3269
/oai-ran/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c:366:15: runtime error: member access within null pointer of type 'struct NR_UE_sched_ctrl_t'
[INFO tini (1)] Spawned child process '/opt/oai-gnb/bin/entrypoint.sh' with pid '7'
[INFO tini (1)] Main child exited normally (with status '1')
Fixes for E1 and PDU session usage
Fix a number of problems in E1 and PDU session handling:
- For multiple PDU session setup reqs, we send a bearer context setup
each time; fix an assert that was triggered on the second bearer
context setup message
- Add a log for E1 bearer context setup, as already done for
modification and release
- If we get a PDU session setup for an existing PDU session, reject it
as required by the spec [actually, it says to reject individual PDU
sessions; keep it simple for now and reject the entire message, which
might not be correct if there is one new PDU session that does not
exist]
- Add a workaround to handle multiple PDU session setup requests that
come in quick succession for different PDU sessions
Avoid access to mac->current_DL_BWP structure when scheduling DCI for
SIBs other than 1. This is not needed and can cause NULL pointer access
which can happen if the UE has released MAC configuration or has not
started RA yet.
If two PDU sessions are to be setup, the CU-CP sends two bearer context
setup requests. When running only the CU-UP, we inconditionally tried to
set up the CU-UP UE ID identifiers upon reception of the bearer context
setup request, leading to an assert. Check if the IDs are not already
set up, to avoid assertions in that case.
Currently we still activated the DL HARQ process for PUCCH transmission,
and only at the time of the scheduled PUCCH transmission, we actually skip sending the ACK.
This is not only unnecessary, it is at least misleading and strange that
DL HARQ processes can be reused in the meantime, even though they are active...
Therefore simply don't activate the DL HARQ process by skipping the call to set_harq_status() if feedback for it is disabled.
K-offset updated with configured sub carrier spacing
According to 38.331 , cell specific K-OFFSET provided in SIB19 is provided in
number of slots as per 15Khz SCS Koffset before being applied, needs to be
updated to the slots according to the configured subcarrier spacing.
According to 38.331 , cell specific K-OFFSET provided in SIB19 is provided in number of slots as per 15Khz SCS
Koffset before being applied, needs to be updated to the slots according to the configured subcarrier spacing.
rmagueta