diff --git a/res/values/config.xml b/res/values/config.xml
index b496080ea68..b9a69f105e8 100755
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -136,12 +136,4 @@
 
     <!-- Whether or not TopLevelSettings should force rounded icon for injected tiles -->
     <bool name="config_force_rounded_icon_TopLevelSettings">true</bool>
-
-    <!-- TODO(b/115429501): move those 3 configs to framework-->
-    <!-- Show enabled lte option for lte device -->
-    <bool name="config_enabled_lte" translatable="false">false</bool>
-    <!-- Show enabled tdscdma option for device -->
-    <bool name="config_support_tdscdma" translatable="false">false</bool>
-    <!-- Show enabled tdscdma option for device when connect roaming network -->
-    <string-array name="config_support_tdscdma_roaming_on_networks" translatable="false"></string-array>
 </resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index e828ac2b677..7e37f5b3ff5 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -10187,9 +10187,6 @@
     <!-- Text for Network global [CHAR LIMIT=NONE] -->
     <string name="network_global">Global</string>
 
-    <!-- Configuration setting for world mode Format is <true;GID if any to be checked> [CHAR LIMIT=NONE] -->
-    <string translatable="false" name="config_world_mode"/>
-
     <!-- Available networks screen title/heading [CHAR LIMIT=NONE] -->
     <string name="label_available">Available networks</string>
     <!-- Mobile network settings screen, toast when searching for available networks [CHAR LIMIT=NONE] -->
diff --git a/src/com/android/settings/network/telephony/EnabledNetworkModePreferenceController.java b/src/com/android/settings/network/telephony/EnabledNetworkModePreferenceController.java
index b077dd526fc..b323f910af5 100644
--- a/src/com/android/settings/network/telephony/EnabledNetworkModePreferenceController.java
+++ b/src/com/android/settings/network/telephony/EnabledNetworkModePreferenceController.java
@@ -180,7 +180,7 @@ public class EnabledNetworkModePreferenceController extends BasePreferenceContro
                 preference.setEntryValues(
                         R.array.enabled_networks_tdscdma_values);
             } else if (!carrierConfig.getBoolean(CarrierConfigManager.KEY_PREFER_2G_BOOL)
-                    && !resources.getBoolean(R.bool.config_enabled_lte)) {
+                    && !carrierConfig.getBoolean(CarrierConfigManager.KEY_LTE_ENABLED_BOOL)) {
                 preference.setEntries(R.array.enabled_networks_except_gsm_lte_choices);
                 preference.setEntryValues(R.array.enabled_networks_except_gsm_lte_values);
             } else if (!carrierConfig.getBoolean(CarrierConfigManager.KEY_PREFER_2G_BOOL)) {
@@ -190,7 +190,7 @@ public class EnabledNetworkModePreferenceController extends BasePreferenceContro
                 preference.setEntries(select);
                 preference.setEntryValues(
                         R.array.enabled_networks_except_gsm_values);
-            } else if (!resources.getBoolean(R.bool.config_enabled_lte)) {
+            } else if (!carrierConfig.getBoolean(CarrierConfigManager.KEY_LTE_ENABLED_BOOL)) {
                 preference.setEntries(
                         R.array.enabled_networks_except_lte_choices);
                 preference.setEntryValues(
diff --git a/src/com/android/settings/network/telephony/MobileNetworkUtils.java b/src/com/android/settings/network/telephony/MobileNetworkUtils.java
index 689799eb96a..dc184d3df3f 100644
--- a/src/com/android/settings/network/telephony/MobileNetworkUtils.java
+++ b/src/com/android/settings/network/telephony/MobileNetworkUtils.java
@@ -27,6 +27,7 @@ import android.database.Cursor;
 import android.os.PersistableBundle;
 import android.os.SystemProperties;
 import android.provider.Settings;
+import android.service.carrier.CarrierMessagingService;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.telephony.CarrierConfigManager;
@@ -329,28 +330,11 @@ public class MobileNetworkUtils {
      * settings
      */
     public static boolean isWorldMode(Context context, int subId) {
-        final TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class)
-                .createForSubscriptionId(subId);
-        boolean worldModeOn = false;
-        final String configString = context.getString(R.string.config_world_mode);
-
-        if (!TextUtils.isEmpty(configString)) {
-            String[] configArray = configString.split(";");
-            // Check if we have World mode configuration set to True only or config is set to True
-            // and SIM GID value is also set and matches to the current SIM GID.
-            if (configArray != null &&
-                    ((configArray.length == 1 && configArray[0].equalsIgnoreCase("true"))
-                            || (configArray.length == 2 && !TextUtils.isEmpty(configArray[1])
-                            && telephonyManager != null
-                            && configArray[1].equalsIgnoreCase(
-                            telephonyManager.getGroupIdLevel1())))) {
-                worldModeOn = true;
-            }
-        }
-
-        Log.d(TAG, "isWorldMode=" + worldModeOn);
-
-        return worldModeOn;
+        final PersistableBundle carrierConfig = context.getSystemService(
+                CarrierConfigManager.class).getConfigForSubId(subId);
+        return carrierConfig == null
+                ? false
+                : carrierConfig.getBoolean(CarrierConfigManager.KEY_WORLD_MODE_ENABLED_BOOL);
     }
 
     /**
@@ -396,14 +380,21 @@ public class MobileNetworkUtils {
 
     //TODO(b/117651939): move it to telephony
     private static boolean isTdscdmaSupported(Context context, TelephonyManager telephonyManager) {
-        if (context.getResources().getBoolean(R.bool.config_support_tdscdma)) {
+        final PersistableBundle carrierConfig = context.getSystemService(
+                CarrierConfigManager.class).getConfig();
+
+        if (carrierConfig == null) {
+            return false;
+        }
+
+        if (carrierConfig.getBoolean(CarrierConfigManager.KEY_SUPPORT_TDSCDMA_BOOL)) {
             return true;
         }
 
         String operatorNumeric = telephonyManager.getServiceState().getOperatorNumeric();
-        String[] numericArray = context.getResources().getStringArray(
-                R.array.config_support_tdscdma_roaming_on_networks);
-        if (numericArray.length == 0 || operatorNumeric == null) {
+        String[] numericArray = carrierConfig.getStringArray(
+                CarrierConfigManager.KEY_SUPPORT_TDSCDMA_ROAMING_NETWORKS_STRING_ARRAY);
+        if (numericArray == null || operatorNumeric == null) {
             return false;
         }
         for (String numeric : numericArray) {
@@ -413,4 +404,4 @@ public class MobileNetworkUtils {
         }
         return false;
     }
-}
\ No newline at end of file
+}
diff --git a/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkUtilsTest.java b/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkUtilsTest.java
index 676c9f4f23d..8a57a0cc751 100644
--- a/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkUtilsTest.java
+++ b/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkUtilsTest.java
@@ -165,7 +165,8 @@ public class MobileNetworkUtilsTest {
     @Test
     public void isCdmaOptions_worldModeWithGsmWcdma_returnTrue() {
         when(mTelephonyManager.getPhoneType()).thenReturn(PhoneConstants.PHONE_TYPE_GSM);
-        when(mContext.getString(R.string.config_world_mode)).thenReturn("true");
+        mCarrierConfig.putBoolean(CarrierConfigManager.KEY_WORLD_MODE_ENABLED_BOOL, true);
+
         Settings.Global.putInt(mContext.getContentResolver(),
                 android.provider.Settings.Global.PREFERRED_NETWORK_MODE + SUB_ID_1,
                 TelephonyManager.NETWORK_MODE_LTE_GSM_WCDMA);