From 210ce0ac48f255e9429a981e67e7c5ffe6669c35 Mon Sep 17 00:00:00 2001 From: Xavier Arteaga Date: Tue, 14 Apr 2020 18:57:33 +0200 Subject: [PATCH] Fix modulation table --- lib/src/phy/phch/ra.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/src/phy/phch/ra.c b/lib/src/phy/phch/ra.c index 23c5a71a6..02af05aa7 100644 --- a/lib/src/phy/phch/ra.c +++ b/lib/src/phy/phch/ra.c @@ -151,6 +151,7 @@ int srslte_ra_tbs_idx_from_mcs(uint32_t mcs, bool use_tbs_index_alt, bool is_ul) srslte_mod_t srslte_ra_dl_mod_from_mcs(uint32_t mcs, bool use_tbs_index_alt) { if (use_tbs_index_alt) { + // 3GPP 36.213 R12 Table 7.1.7.1-1A if (mcs < 5 || mcs == 28) { return SRSLTE_MOD_QPSK; } else if (mcs < 11 || mcs == 29) { @@ -161,9 +162,10 @@ srslte_mod_t srslte_ra_dl_mod_from_mcs(uint32_t mcs, bool use_tbs_index_alt) return SRSLTE_MOD_256QAM; } } else { - if (mcs <= 10 || mcs == 29) { + // 3GPP 36.213 R12 Table 7.1.7.1-1 + if (mcs < 10 || mcs == 29) { return SRSLTE_MOD_QPSK; - } else if (mcs <= 17 || mcs == 30) { + } else if (mcs < 17 || mcs == 30) { return SRSLTE_MOD_16QAM; } else { return SRSLTE_MOD_64QAM;