Added IWLAN handover rules support (fd33d54f) · Commits · e / os / android_frameworks_base

telephony/java/android/telephony/AccessNetworkConstants.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.telephony;

		import android.annotation.IntDef;
		import android.annotation.NonNull;
		import android.annotation.SystemApi;
		import android.hardware.radio.V1_5.AccessNetwork;

		@@ -28,6 +29,8 @@ import java.lang.annotation.RetentionPolicy;
		*/
		public final class AccessNetworkConstants {

		private static final String TAG = AccessNetworkConstants.class.getSimpleName();

		/**
		* Wireless transportation type
		*
		@@ -108,6 +111,21 @@ public final class AccessNetworkConstants {
		default: return Integer.toString(type);
		}
		}

		/** @hide */
		public static @RadioAccessNetworkType int fromString(@NonNull String str) {
		switch (str.toUpperCase()) {
		case "GERAN" : return GERAN;
		case "UTRAN" : return UTRAN;
		case "EUTRAN" : return EUTRAN;
		case "CDMA2000" : return CDMA2000;
		case "IWLAN" : return IWLAN;
		case "NGRAN" : return NGRAN;
		default:
		Rlog.e(TAG, "Invalid access network type " + str);
		return UNKNOWN;
		}
		}
		}

		/**

telephony/java/android/telephony/CarrierConfigManager.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -5381,6 +5381,34 @@ public class CarrierConfigManager {
		public static final String KEY_UNTHROTTLE_DATA_RETRY_WHEN_TAC_CHANGES_BOOL =
		"unthrottle_data_retry_when_tac_changes_bool";

		/**
		* IWLAN handover rules that determine whether handover is allowed or disallowed between
		* cellular and IWLAN.
		*
		* The handover rules will be matched in the order. Here are some sample rules.
		* <string-array name="iwlan_handover_rules" num="5">
		* <!-- Handover from IWLAN to 2G/3G is not allowed -->
		* <item value="source=IWLAN, target=GERAN\|UTRAN, type=disallowed"/>
		* <!-- Handover from 2G/3G to IWLAN is not allowed -->
		* <item value="source=GERAN\|UTRAN, target:IWLAN, type=disallowed"/>
		* <!-- Handover from IWLAN to 3G/4G/5G is not allowed if the device is roaming. -->
		* <item value="source=IWLAN, target=UTRAN\|EUTRAN\|NGRAN, roaming=true, type=disallowed"/>
		* <!-- Handover from 4G to IWLAN is not allowed -->
		* <item value="source=EUTRAN, target=IWLAN, type=disallowed"/>
		* <!-- Handover is always allowed in any condition. -->
		* <item value="source=GERAN\|UTRAN\|EUTRAN\|NGRAN\|IWLAN,
		* target=GERAN\|UTRAN\|EUTRAN\|NGRAN\|IWLAN, type=allowed"/>
		* </string-array>
		*
		* When handover is not allowed, frameworks will tear down the data network on source transport,
		* and then setup a new one on the target transport when Qualified Network Service changes the
		* preferred access networks for particular APN types.
		*
		* @hide
		*/
		public static final String KEY_IWLAN_HANDOVER_POLICY_STRING_ARRAY =
		"iwlan_handover_policy_string_array";

		/** The default value for every variable. */
		private final static PersistableBundle sDefaults;

		@@ -6043,6 +6071,9 @@ public class CarrierConfigManager {
		sDefaults.putBoolean(KEY_UNTHROTTLE_DATA_RETRY_WHEN_TAC_CHANGES_BOOL, false);
		sDefaults.putBoolean(KEY_VONR_SETTING_VISIBILITY_BOOL, true);
		sDefaults.putBoolean(KEY_VONR_ENABLED_BOOL, false);
		sDefaults.putStringArray(KEY_IWLAN_HANDOVER_POLICY_STRING_ARRAY, new String[]{
		"source=GERAN\|UTRAN\|EUTRAN\|NGRAN\|IWLAN, "
		+ "target=GERAN\|UTRAN\|EUTRAN\|NGRAN\|IWLAN, type=allowed"});
		}

		/**