diff --git a/core/rtw_mp.c b/core/rtw_mp.c
index f35d7b9..90effa7 100644
--- a/core/rtw_mp.c
+++ b/core/rtw_mp.c
@@ -3330,9 +3330,9 @@ UINT LDPC_parameter_generator(
 	/*	Number of information bits per CW*/
 	K_LDPC = L_LDPC_12 * CR12;
 	/*	Number of shortening bits					max(0, (N_CW * L_LDPC_12 * 12 * R) - N_pld)*/
-	N_shrt = (N_CW * K_LDPC - N_pld) > 0. ? (N_CW * K_LDPC - N_pld) : 0.;
+	N_shrt = (N_CW * K_LDPC > N_pld) ? (N_CW * K_LDPC - N_pld) : 0.;
 	/*	Number of puncturing bits*/
-	N_punc = (N_CW * L_LDPC_12 * 12 - N_TCB - N_shrt) > 0. ? (N_CW * L_LDPC_12 * 12 - N_TCB - N_shrt) : 0.;
+	N_punc = (N_CW * L_LDPC_12 * 12 > N_TCB + N_shrt) ? (N_CW * L_LDPC_12 * 12 - N_TCB - N_shrt) : 0.;
 	if (((N_punc > .1 * N_CW * L_LDPC_12 * (12 - CR12)) && (N_shrt < 1.2 * N_punc * CR12 / (12 - CR12))) ||
 	    (N_punc > 0.3 * N_CW * L_LDPC_12 * (12 - CR12))) {
 		VHTSIGA2B3 = 1;