Better NR softbuffer size adjustment

lib/include/srsran/phy/common/phy_common_nr.h

@@ -36,7 +36,6 @@ extern "C" {
 #define SRSRAN_SF_LEN_PRB_NR(nof_prb) (srsran_min_symbol_sz_rb(nof_prb) * 15)
 
 #define SRSRAN_SLOT_MAX_LEN_RE_NR (SRSRAN_SLOT_LEN_RE_NR(SRSRAN_MAX_PRB_NR))
-#define SRSRAN_SLOT_MAX_NOF_BITS_NR (SRSRAN_SLOT_MAX_LEN_RE_NR * SRSRAN_MAX_QM)
 #define SRSRAN_MAX_LAYERS_NR 8
 
 /**
@@ -114,6 +113,11 @@ extern "C" {
  */
 #define SRSRAN_PDSCH_MAX_RE_NR (SRSRAN_MAX_NRE_NR * SRSRAN_MAX_PRB_NR)
 
+/**
+ * @brief defines the maximum number of bits that can be transmitted in a slot
+ */
+#define SRSRAN_SLOT_MAX_NOF_BITS_NR (SRSRAN_PDSCH_MAX_RE_NR * SRSRAN_MAX_QM)
+
 /**
  * @brief Maximum number of PDSCH time domain resource allocations. This is defined by TS 38.331 v15.10.0
  * as maxNrofDL-Allocations

lib/include/srsran/phy/fec/ldpc/base_graph.h

@@ -32,11 +32,9 @@
 
 #include <stdint.h>
 
-#define SRSRAN_LDPC_BG1_MAX_LEN_CB 8448 /*!< \brief Maximum code block size for LDPC BG1 */
-#define SRSRAN_LDPC_BG2_MAX_LEN_CB 3840 /*!< \brief Maximum code block size for LDPC BG2 */
-#define SRSRAN_LDPC_MAX_LEN_CB                                                                                         \
-  SRSRAN_MAX(SRSRAN_LDPC_BG1_MAX_LEN_CB,                                                                               \
-             SRSRAN_LDPC_BG2_MAX_LEN_CB) /*!< \brief Maximum code block size for LDPC BG1 or BG2 */
+#define SRSRAN_LDPC_BG1_MAX_LEN_CB 8448                   /*!< \brief Maximum code block size for LDPC BG1 */
+#define SRSRAN_LDPC_BG2_MAX_LEN_CB 3840                   /*!< \brief Maximum code block size for LDPC BG2 */
+#define SRSRAN_LDPC_MAX_LEN_CB SRSRAN_LDPC_BG1_MAX_LEN_CB /*!< \brief Maximum code block size for LDPC BG1 or BG2 */
 
 #define BG1Nfull 68 /*!< \brief Number of variable nodes in BG1. */
 #define BG1N 66     /*!< \brief Number of variable nodes in BG1 after puncturing. */

lib/include/srsran/phy/phch/sch_nr.h

@@ -29,8 +29,12 @@
 #include "srsran/phy/fec/ldpc/ldpc_rm.h"
 #include "srsran/phy/phch/phch_cfg_nr.h"
 
+/**
+ * @brief Maximum number of codeblocks for a NR shared channel transmission. It assumes a rate of 1.0 for the maximum
+ * amount of bits a resource grid can fit
+ */
 #define SRSRAN_SCH_NR_MAX_NOF_CB_LDPC                                                                                  \
-  ((SRSRAN_SLOT_MAX_NOF_BITS_NR + (SRSRAN_LDPC_BG2_MAX_LEN_CB - 1)) / SRSRAN_LDPC_BG2_MAX_LEN_CB)
+  ((SRSRAN_SLOT_MAX_NOF_BITS_NR + (SRSRAN_LDPC_MAX_LEN_CB - 1)) / SRSRAN_LDPC_MAX_LEN_CB)
 
 /**
  * @brief Groups NR-PUSCH data for reception