From b0b11a9244052fae298bd8265acc9cb01e666972 Mon Sep 17 00:00:00 2001
From: Guy De Souza <desouza@eurecom.fr>
Date: Tue, 10 Jul 2018 09:29:00 +0200
Subject: [PATCH] Encoding debug data
---
openair1/PHY/NR_TRANSPORT/nr_pbch.c | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/openair1/PHY/NR_TRANSPORT/nr_pbch.c b/openair1/PHY/NR_TRANSPORT/nr_pbch.c
index 4a12452a96..ed144886ee 100644
--- a/openair1/PHY/NR_TRANSPORT/nr_pbch.c
+++ b/openair1/PHY/NR_TRANSPORT/nr_pbch.c
@@ -156,12 +156,18 @@ void nr_pbch_scrambling(NR_gNB_PBCH *pbch,
}
// Scrambling is now done with offset (nushift*M)%32
offset = (nushift*M)&0x1f;
+#ifdef DEBUG_PBCH_ENCODING
+ printf("Scrambling params: nushift %d M %d length %d bitwise %d offset %d\n", nushift, M, length, bitwise, offset);
+#endif
for (int i=0; i<length; i++) {
if (((i+offset)&0x1f)==0) {
s = lte_gold_generic(&x1, &x2, reset);
reset = 0;
}
+#ifdef DEBUG_PBCH_ENCODING
+ printf("s: %04x\n", s);
+#endif
if (bitwise) {
(*pbch_a_prime) ^= ((unscrambling_mask>>i)&1)? (((*pbch_a_interleaved)>>i)&1)<<i : ((((*pbch_a_interleaved)>>i)&1) ^ ((s>>((i+offset)&0x1f))&1))<<i;
}
@@ -256,20 +262,31 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
nushift = (((sfn>>2)&1)<<1) ^ ((sfn>>1)&1);
nr_pbch_scrambling(pbch, (uint32_t)config->sch_config.physical_cell_id.value, nushift, M, NR_POLAR_PBCH_PAYLOAD_BITS, 1);
#ifdef DEBUG_PBCH_ENCODING
-
+ printf("Payload scrambling:\n");
+ for (int i=0; i<4; i++)
+ printf("pbch_a_prime[%d]: 0x%04x\n", i, pbch->pbch_a_prime[i]);
#endif
/// CRC, coding and rate matching
polar_encoder (pbch->pbch_a_prime, pbch->pbch_e, &frame_parms->pbch_polar_params);
#ifdef DEBUG_PBCH_ENCODING
-
+ printf("Channel coding:\n");
+ for (int i=0; i<NR_POLAR_PBCH_E>>3; i++)
+ printf("pbch_e[%d]: 0x%04x", i, pbch->pbch_e[i]);
+ printf("\n");
#endif
/// Scrambling
M = NR_POLAR_PBCH_E;
nushift = config->sch_config.physical_cell_id.value &3;;
nr_pbch_scrambling(pbch, (uint32_t)config->sch_config.physical_cell_id.value, nushift, M, NR_POLAR_PBCH_E, 0);
+#ifdef DEBUG_PBCH_ENCODING
+ printf("Scrambling:\n");
+ for (int i=0; i<NR_POLAR_PBCH_E>>3; i++)
+ printf("pbch_e[%d]: 0x%04x", i, pbch->pbch_e[i]);
+ printf("\n");
+#endif
/// QPSK modulation
for (int i=0; i<NR_POLAR_PBCH_E>>1; i++){
--
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