Add PDCCH UESS aggregation level configuration option

Added uess_agg_levels configuration option which changes the number of PDCCH
candidates per aggregation level.

common/platform_types.h

@@ -150,6 +150,15 @@ typedef enum ip_traffic_type_e {
   TRAFFIC_PC5S_SESSION_INIT = 10
 } ip_traffic_type_t;
 
+typedef enum {
+  PDCCH_AGG_LEVEL1 = 0,
+  PDCCH_AGG_LEVEL2,
+  PDCCH_AGG_LEVEL4,
+  PDCCH_AGG_LEVEL8,
+  PDCCH_AGG_LEVEL16,
+  NUM_PDCCH_AGG_LEVELS
+} Pdcch_Aggregation_Level_t;
+
 typedef struct net_ip_address_s {
   unsigned ipv4: 1;
   unsigned ipv6: 1;

common/utils/nr/nr_common.c

@@ -551,6 +551,18 @@ void get_coreset_rballoc(uint8_t *FreqDomainResource,int *n_rb,int *rb_offset) {
   *n_rb = 6*count;
 }
 
+// According to 38.211 7.3.2.2
+int get_coreset_num_cces(uint8_t *FreqDomainResource, int duration)
+{
+  int num_rbs;
+  int rb_offset;
+  get_coreset_rballoc(FreqDomainResource, &num_rbs, &rb_offset);
+  int total_resource_element_groups = num_rbs * duration;
+  int reg_per_cce = 6;
+  int total_cces = total_resource_element_groups / reg_per_cce;
+  return total_cces;
+}
+
 int get_nb_periods_per_frame(uint8_t tdd_period)
 {
 

common/utils/nr/nr_common.h

@@ -245,6 +245,7 @@ uint32_t to_nrarfcn(int nr_bandP, uint64_t dl_CarrierFreq, uint8_t scs_index, ui
 int cce_to_reg_interleaving(const int R, int k, int n_shift, const int C, int L, const int N_regs);
 int get_SLIV(uint8_t S, uint8_t L);
 void get_coreset_rballoc(uint8_t *FreqDomainResource,int *n_rb,int *rb_offset);
+int get_coreset_num_cces(uint8_t *FreqDomainResource, int duration);
 int get_nr_table_idx(int nr_bandP, uint8_t scs_index);
 int32_t get_delta_duplex(int nr_bandP, uint8_t scs_index);
 frame_type_t get_frame_type(uint16_t nr_bandP, uint8_t scs_index);