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fix for variable power in PDSCH REs

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- correctly scale REs. Some REs have higher power during PDSCH RE-Mapping which is corrected.
	- Closes: Issue 811
This commit is contained in:
Raghavendra Dinavahi
2024-09-26 10:31:20 +02:00
parent ccdabb4c2c
commit 42ab4b4a0c
1 changed files with 4 additions and 4 deletions
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openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+4 -4
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@@ -410,8 +410,8 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx, int frame, int slot)
c16_t *txFc = &txdataF_precoding[layer][l_symbol][start_sc]; c16_t *txFc = &txdataF_precoding[layer][l_symbol][start_sc];
c16_t *txlc = &tx_layer[cur_re]; c16_t *txlc = &tx_layer[cur_re];
for (i = (upper_limit >> 2) << 2; i < upper_limit; i++) { for (i = (upper_limit >> 2) << 2; i < upper_limit; i++) {
txFc[i].r = ((txlc[i].r * amp) >> 14) + 1; txFc[i].r = (((txlc[i].r * amp) >> 14) + 1) >> 1;
txFc[i].i = ((txlc[i].i * amp) >> 14) + 1; txFc[i].i = (((txlc[i].i * amp) >> 14) + 1) >> 1;
} }
} }
cur_re += upper_limit; cur_re += upper_limit;
@@ -442,8 +442,8 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx, int frame, int slot)
c16_t *txFc = txdataF_precoding[layer][l_symbol]; c16_t *txFc = txdataF_precoding[layer][l_symbol];
c16_t *txlc = &tx_layer[cur_re]; c16_t *txlc = &tx_layer[cur_re];
for (i = (remaining_re >> 2) << 2; i < remaining_re; i++) { for (i = (remaining_re >> 2) << 2; i < remaining_re; i++) {
txFc[i].r = ((txlc[i].r * amp) >> 14) + 1; txFc[i].r = (((txlc[i].r * amp) >> 14) + 1) >> 1;
txFc[i].i = ((txlc[i].i * amp) >> 14) + 1; txFc[i].i = (((txlc[i].i * amp) >> 14) + 1) >> 1;
} }
} }
} // remaining_re > 0 } // remaining_re > 0