band_helper: fix UL ARFCN derivation

carlo-gal · codebot · commit 340050cfd17f · 2024-10-02T08:59:52.000Z
Signed-off-by: Carlo Galiotto &lt;carlo@srs.io&gt;
diff --git a/lib/ran/band_helper.cpp b/lib/ran/band_helper.cpp
@@ -815,7 +815,7 @@ uint32_t srsran::band_helper::get_ul_arfcn_from_dl_arfcn(uint32_t dl_arfcn, std:
 
   // Derive UL ARFCN for FDD bands.
   for (const nr_band_raster& b_it : nr_band_table) {
-    if (b_it.band == get_band_from_dl_arfcn(dl_arfcn)) {
+    if (b_it.band == operating_band) {
       const uint32_t offset = (dl_arfcn - b_it.dl_nref_first) / b_it.dl_nref_step;
       return (b_it.ul_nref_first + offset * b_it.ul_nref_step);
     }

Original file line number	Diff line number	Diff line change
`@@ -815,7 +815,7 @@ uint32_t srsran::band_helper::get_ul_arfcn_from_dl_arfcn(uint32_t dl_arfcn, std:`
`815`	`815`
`816`	`816`	`// Derive UL ARFCN for FDD bands.`
`817`	`817`	`for (const nr_band_raster& b_it : nr_band_table) {`
`818`		`- if (b_it.band == get_band_from_dl_arfcn(dl_arfcn)) {`
	`818`	`+ if (b_it.band == operating_band) {`
`819`	`819`	`const uint32_t offset = (dl_arfcn - b_it.dl_nref_first) / b_it.dl_nref_step;`
`820`	`820`	`return (b_it.ul_nref_first + offset * b_it.ul_nref_step);`
`821`	`821`	`}`