From 4be4f5633389c0971f85c5d4982f0979430630e2 Mon Sep 17 00:00:00 2001
From: Xavier Arteaga <xavier@softwareradiosystems.com>
Date: Wed, 11 Dec 2019 19:42:03 +0100
Subject: [PATCH] SRSUE: Fix duplicates ACK

---
 srsue/src/phy/cc_worker.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/srsue/src/phy/cc_worker.cc b/srsue/src/phy/cc_worker.cc
index 923979bfa..114d67f87 100644
--- a/srsue/src/phy/cc_worker.cc
+++ b/srsue/src/phy/cc_worker.cc
@@ -432,6 +432,7 @@ int cc_worker::decode_pdsch(srslte_pdsch_ack_resource_t            ack_resource,
   }
 
   // Generate ACKs for MAC and PUCCH
+  uint32_t nof_tb                             = 0;
   uint8_t pending_acks[SRSLTE_MAX_CODEWORDS] = {};
   for (uint32_t tb = 0; tb < SRSLTE_MAX_CODEWORDS; tb++) {
     // For MAC, set to true if it's a duplicate
@@ -440,9 +441,13 @@ int cc_worker::decode_pdsch(srslte_pdsch_ack_resource_t            ack_resource,
     // For PUCCH feedback, need to send even if duplicate, but only those CW that were enabled before disabling in th
     // grant
     pending_acks[tb] = tb_enable[tb] ? mac_acks[tb] : 2;
+
+    if (tb_enable[tb]) {
+      nof_tb++;
+    }
   }
 
-  if (action->generate_ack && ue_dl_cfg.cfg.pdsch.grant.nof_tb > 0) {
+  if (action->generate_ack && nof_tb > 0) {
     phy->set_dl_pending_ack(&sf_cfg_dl, cc_idx, pending_acks, ack_resource);
   }