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Add PDCCH UESS aggregation level configuration option

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Added uess_agg_levels configuration option which changes the number of PDCCH
candidates per aggregation level.
This commit is contained in:
Bartosz Podrygajlo
2025-01-15 11:09:31 +01:00
parent 16f028dba5
commit 095b791929
12 changed files with 168 additions and 42 deletions
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doc/MAC/mac-usage.md
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@@ -43,10 +43,15 @@ The actual scheduler implementation can be found in functions `pf_dl()` and
PDCCH aggregation level is selected using closed loop controller, where DL HARQ
feedback is the controller feedback signal. It is used to increment `pdcch_cl_adjust`
variable if no feedback is detected and decrement the variable when feedback is detected.
`pdcch_cl_adjust` is later mapped PDCCH aggregation level range.
`pdcch_cl_adjust` is later mapped to the PDCCH aggregation level range.
The value of `pdcch_cl_adjust` is clamped to range <0,1>, the increment value is 0.05 while
the decrement value is 0.01.
the decrement value is 0.01. These values are selected to ensure PDCCH success rate is high.
See Examples below for futher explaination.
The possible values of aggregation level on UE SS can be configured via `uess_agg_levels` configuration
option. By default the gNB uses only aggregation level 2 which translates to `uess_agg_levels` set to
`[0, 1, 0, 0, 0]`. For example, to enable aggregation level 2 and 4 set `uess_agg_levels` to `[0, 1, 1, 0, 0]`.
### Examples:
#### Example 1: