Added SSB center frequency to band helper

lib/include/srsran/common/band_helper.h

@@ -115,7 +115,7 @@ public:
   uint32_t get_abs_freq_point_a_arfcn(uint32_t nof_prb, uint32_t arfcn);
 
   /**
-   * @brief Compute the absolute frequency of the SSB for a DL ARFCN and a band. sThis selects an SSB center frequency
+   * @brief Compute the absolute frequency of the SSB for a DL ARFCN and a band. This selects an SSB center frequency
    * following the band SS/PBCH frequency raster provided by 38.104 table 5.4.3.1-1 as close as possible to PointA
    * without letting any SS/PBCH subcarrier below PointA
    *
@@ -126,6 +126,13 @@ public:
    */
   uint32_t get_abs_freq_ssb_arfcn(uint16_t band, srsran_subcarrier_spacing_t scs, uint32_t freq_point_a_arfcn);
 
+  /**
+   * @brief Compute SSB center frequency for NR carrier
+   * @param carrier Const Reference to a carrier struct including PRB, abs. frequency point A and carrier offset.
+   * @return double Frequency in Hz
+   */
+  double get_ssb_center_freq(const srsran_carrier_nr_t& carrier);
+
   class sync_raster_t
   {
   protected:
@@ -313,8 +320,8 @@ private:
   }};
 
   static const uint32_t nof_nr_bands_fr2                                   = 8;
-  static constexpr std::array<nr_band, nof_nr_bands_fr2> nr_band_table_fr2 = {
-      {{257, KHZ_60, 2054166, 1, 2104165, 2054166, 1, 2104165},
+  static constexpr std::array<nr_band, nof_nr_bands_fr2> nr_band_table_fr2 = {{
+    {257, KHZ_60, 2054166, 1, 2104165, 2054166, 1, 2104165},
     {257, KHZ_120, 2054167, 2, 2104165, 2054167, 20, 2104165},
     
     {258, KHZ_60, 2016667, 1, 2070832, 2016667, 1, 2070832},
@@ -324,7 +331,8 @@ private:
     {260, KHZ_120, 2229167, 2, 2279165, 2229167, 2, 2279165},
 
     {261, KHZ_60, 2070833, 1, 2084999, 2070833, 1, 2084999},
-       {261, KHZ_120, 2070833, 2, 2084999, 2070833, 2, 2084999}}};
+    {261, KHZ_120, 2070833, 2, 2084999, 2070833, 2, 2084999}
+  }};
 
   // Elements of TS 38.101-1 Table 5.4.3.3-1 : Applicable SS raster entries per operating band
   struct nr_band_ss_raster {