From e06c7276042d2ce3a7956cc5d2e68e9b0a0b3bed Mon Sep 17 00:00:00 2001
From: rmagueta <rmagueta@allbesmart.pt>
Date: Thu, 11 Mar 2021 13:57:29 +0000
Subject: [PATCH] Revert "Revert RA preamble shift at gNB"

This reverts commit fa79cdb5
---
 openair1/PHY/NR_TRANSPORT/nr_prach.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openair1/PHY/NR_TRANSPORT/nr_prach.c b/openair1/PHY/NR_TRANSPORT/nr_prach.c
index 1d971a8831..0c1fde07a2 100644
--- a/openair1/PHY/NR_TRANSPORT/nr_prach.c
+++ b/openair1/PHY/NR_TRANSPORT/nr_prach.c
@@ -681,7 +681,7 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
         preamble_shift  -= NCS;
 
         if (preamble_shift < 0)
-          preamble_shift+=N_ZC;
+          preamble_shift+=((N_ZC/NCS)*NCS);
       }
     } else { // This is the high-speed case
       new_dft = 0;