Add PDCCH interleaved mapping in phy_dl_nr_test and iterate all possible 15kHz SCS bandwidths

lib/test/phy/CMakeLists.txt

@@ -54,11 +54,25 @@ add_lte_test(pucch_ca_test pucch_ca_test)
 
 add_executable(phy_dl_nr_test phy_dl_nr_test.c)
 target_link_libraries(phy_dl_nr_test srsran_phy srsran_common srsran_phy ${SEC_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
-add_nr_test(phy_dl_nr_test phy_dl_nr_test -p 100 -m 28 )
-add_nr_test(phy_dl_nr_test_rvd phy_dl_nr_test -P 52 -p 52 -m 0
-        -R 0 52 1 010010010010 00000000010000
-        -R 0 52 1 100100100100 00000010000000)
 
-add_nr_test(phy_dl_nr_test_cfo_delay phy_dl_nr_test -P 52 -p 52 -m 27 -C 100.0 -D 4 -n 10)
-add_nr_test(phy_dl_nr_test_52prb phy_dl_nr_test -P 52 -p 52 -m 27 -T 256qam -d 1 1 -n 10)
-add_nr_test(phy_dl_nr_test_270prb phy_dl_nr_test -P 270 -p 270 -m 27 -T 256qam -d 1 1 -n 10)
+# Create a test case for each possible bandwidth described in TS 38.104 Table 5.3.2-1: Transmission bandwidth
+# configuration N RB for FR1
+foreach(rb 25 52 79 106 133 160 216 270)
+  # Basic test with 25 RB grant, maximum MCS, 64QAM
+  add_nr_test(phy_dl_nr_test_${rb}prb phy_dl_nr_test -P ${rb} -p 25 -m 28)
+
+  # Full BW grant, minimum MCS, with reserved RE
+  add_nr_test(phy_dl_nr_test_${rb}prb_rvd phy_dl_nr_test -P ${rb} -p ${rb} -m 0
+          -R 0 ${rb} 1 010010010010 00000000010000
+          -R 0 ${rb} 1 100100100100 00000010000000)
+
+  # 25 RB grant with interleaved PDCCH
+  add_nr_test(phy_dl_nr_test_${rb}prb_interleaved phy_dl_nr_test -P ${rb} -p 25 -m 10 -I)
+
+  # Maximum throughput with 256QAM
+  add_nr_test(phy_dl_nr_test_${rb}prb_256qam phy_dl_nr_test -P ${rb} -p ${rb} -m 27 -T 256qam -v -d 1 1 -n 10)
+
+  # Maximum throughput with 64QAM and CFO+Delay impairments
+  add_nr_test(phy_dl_nr_test_${rb}prb_cfo_delay phy_dl_nr_test -P ${rb} -p ${rb} -m 27 -C 100.0 -D 4 -n 10)
+
+endforeach()

lib/test/phy/phy_dl_nr_test.c

@@ -39,10 +39,11 @@ static uint32_t                  delay_n      = 0;    // Integer delay
 static float                     cfo_hz            = 0.0f; // CFO Hz
 static srsran_dmrs_sch_type_t    dmrs_type         = srsran_dmrs_sch_type_1;
 static srsran_dmrs_sch_add_pos_t dmrs_add_pos      = srsran_dmrs_sch_add_pos_2;
+static bool                      interleaved_pdcch = false;
 
 static void usage(char* prog)
 {
-  printf("Usage: %s [rRPdpmnTLDCv] \n", prog);
+  printf("Usage: %s [rRPdpmnTILDCv] \n", prog);
   printf("\t-P Number of BWP (Carrier) PRB [Default %d]\n", carrier.nof_prb);
   printf("\t-p Number of grant PRB, set to 0 for steering [Default %d]\n", n_prb);
   printf("\t-n Number of slots to simulate [Default %d]\n", nof_slots);
@@ -52,6 +53,7 @@ static void usage(char* prog)
   printf("\t-T Provide MCS table (64qam, 256qam, 64qamLowSE) [Default %s]\n",
          srsran_mcs_table_to_str(pdsch_cfg.sch_cfg.mcs_table));
   printf("\t-R Reserve RE: [rb_begin] [rb_end] [rb_stride] [sc_mask] [symbol_mask]\n");
+  printf("\t-I Enable interleaved CCE-to-REG [Default %s]\n", interleaved_pdcch ? "Enabled" : "Disabled");
   printf("\t-L Provide number of layers [Default %d]\n", carrier.max_mimo_layers);
   printf("\t-D Delay signal an integer number of samples [Default %d samples]\n", delay_n);
   printf("\t-C Frequency shift (CFO) signal in Hz [Default %+.0f Hz]\n", cfo_hz);
@@ -61,7 +63,7 @@ static void usage(char* prog)
 static int parse_args(int argc, char** argv)
 {
   int opt;
-  while ((opt = getopt(argc, argv, "rRPdpmnTLDCv")) != -1) {
+  while ((opt = getopt(argc, argv, "rRIPdpmnTLDCv")) != -1) {
     switch (opt) {
       case 'P':
         carrier.nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
@@ -123,6 +125,9 @@ static int parse_args(int argc, char** argv)
           return SRSRAN_ERROR;
         }
       } break;
+      case 'I':
+        interleaved_pdcch ^= true;
+        break;
       case 'L':
         carrier.max_mimo_layers = (uint32_t)strtol(argv[optind], NULL, 10);
         break;
@@ -263,8 +268,20 @@ int main(int argc, char** argv)
   srsran_coreset_t* coreset    = &pdcch_cfg.coreset[1];
   pdcch_cfg.coreset_present[1] = true;
   coreset->duration            = 1;
+
+  uint32_t coreset_bw_rb = carrier.nof_prb;
+
+  if (interleaved_pdcch) {
+    coreset->mapping_type         = srsran_coreset_mapping_type_interleaved;
+    coreset->reg_bundle_size      = srsran_coreset_bundle_size_n6;
+    coreset->interleaver_size     = srsran_coreset_bundle_size_n2;
+    coreset->precoder_granularity = srsran_coreset_precoder_granularity_reg_bundle;
+    coreset->shift_index          = carrier.pci;
+    coreset_bw_rb                 = SRSRAN_FLOOR(carrier.nof_prb, 12) * 12;
+  }
+
   for (uint32_t i = 0; i < SRSRAN_CORESET_FREQ_DOMAIN_RES_SIZE; i++) {
-    coreset->freq_resources[i] = i < carrier.nof_prb / 6;
+    coreset->freq_resources[i] = i < coreset_bw_rb / 6;
   }
 
   // Configure Search Space