#213: Fixes 3-digit MNC

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/misc_utils/extract_system_info_impl.cc b/lib/misc_utils/extract_system_info_impl.cc
index bb7fada..6f745a0 100644
--- a/lib/misc_utils/extract_system_info_impl.cc
+++ b/lib/misc_utils/extract_system_info_impl.cc
@@ -76,6 +76,12 @@ namespace gr {
             info.lac = (msg_elements[8]<<8)+msg_elements[9];             //take lac
             info.mcc =  ((msg_elements[5] & 0xF)  * 100) + (((msg_elements[5] & 0xF0) >> 4) * 10) + ((msg_elements[6] & 0xF)); // take mcc
             info.mnc = (msg_elements[7] & 0xF) * 10 + (msg_elements[7]>>4); //take mnc
+            if (((msg_elements[6] & 0xF0) >> 4) < 10) // we have a 3 digit mnc, see figure 10.5.3 of 3GPP TS 24.008
+            {
+                info.mnc *= 10;
+                info.mnc += (msg_elements[6] & 0xF0) >> 4;
+            }
+
             info.ccch_conf = (msg_elements[10] & 0x7); // ccch_conf
             
             boost::mutex::scoped_lock lock(extract_mutex);
@@ -92,6 +98,11 @@ namespace gr {
             info.lac = (msg_elements[6]<<8)+msg_elements[7];            //take lac
             info.mcc =  ((msg_elements[3] & 0xF) * 100) + (((msg_elements[3] & 0xF0) >> 4) * 10) + ((msg_elements[4] & 0xF)); // take mcc
             info.mnc = (msg_elements[5] & 0xF) * 10 + (msg_elements[5]>>4); //take mnc
+            if (((msg_elements[4] & 0xF0) >> 4) < 10) // we have a 3 digit mnc, see figure 10.5.3 of 3GPP TS 24.008
+            {
+                info.mnc *= 10;
+                info.mnc += (msg_elements[4] & 0xF0) >> 4;
+            }
             
             boost::mutex::scoped_lock lock(extract_mutex);
             if(d_c0_channels.find(info.id) != d_c0_channels.end()){