diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
index 16433be..c618791 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetwork.aidl
@@ -68,4 +68,6 @@
   oneway void startNetworkScan(in int serial, in android.hardware.radio.network.NetworkScanRequest request);
   oneway void stopNetworkScan(in int serial);
   oneway void supplyNetworkDepersonalization(in int serial, in String netPin);
+  oneway void setUsageSetting(in int serial, in android.hardware.radio.network.UsageSetting usageSetting);
+  oneway void getUsageSetting(in int serial);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
index ff95396..8cf4c31 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/IRadioNetworkResponse.aidl
@@ -67,4 +67,6 @@
   oneway void startNetworkScanResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void stopNetworkScanResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void supplyNetworkDepersonalizationResponse(in android.hardware.radio.RadioResponseInfo info, in int remainingRetries);
+  oneway void setUsageSettingResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void getUsageSettingResponse(in android.hardware.radio.RadioResponseInfo info, in android.hardware.radio.network.UsageSetting usageSetting);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/UsageSetting.aidl b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/UsageSetting.aidl
new file mode 100644
index 0000000..7fdf831
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.network/current/android/hardware/radio/network/UsageSetting.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.network;
+@Backing(type="int") @VintfStability
+enum UsageSetting {
+  VOICE_CENTRIC = 1,
+  DATA_CENTRIC = 2,
+}
diff --git a/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl b/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
index 1081a75..aaf432a 100644
--- a/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
+++ b/radio/aidl/android/hardware/radio/network/IRadioNetwork.aidl
@@ -27,6 +27,7 @@
 import android.hardware.radio.network.RadioAccessSpecifier;
 import android.hardware.radio.network.RadioBandMode;
 import android.hardware.radio.network.SignalThresholdInfo;
+import android.hardware.radio.network.UsageSetting;
 
 /**
  * This interface is used by telephony and telecom to talk to cellular radio for network APIs.
@@ -416,4 +417,25 @@
      * Response function is IRadioNetworkResponse.supplyNetworkDepersonalizationResponse()
      */
     void supplyNetworkDepersonalization(in int serial, in String netPin);
+
+    /**
+     * Set the UE usage setting for data/voice centric usage.
+     *
+     * <p>Sets the usage setting in accordance with 3gpp 24.301 sec 4.3 and 3gpp 24.501 sec 4.3.
+     * <p>This value must be independently preserved for each SIM; (setting the value is not a
+     * "global" override).
+     *
+     * @param serial Serial number of request.
+     * @param usageSetting the usage setting for the current SIM.
+     */
+    oneway void setUsageSetting(in int serial, in UsageSetting usageSetting);
+
+    /**
+     * Get the UE usage setting for data/voice centric usage.
+     *
+     * <p>Gets the usage setting in accordance with 3gpp 24.301 sec 4.3 and 3gpp 24.501 sec 4.3.
+     *
+     * @param serial Serial number of request.
+     */
+    oneway void getUsageSetting(in int serial);
 }
diff --git a/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl b/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
index 429b5a8..30f4221 100644
--- a/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
+++ b/radio/aidl/android/hardware/radio/network/IRadioNetworkResponse.aidl
@@ -31,6 +31,7 @@
 import android.hardware.radio.network.RadioBandMode;
 import android.hardware.radio.network.RegStateResult;
 import android.hardware.radio.network.SignalStrength;
+import android.hardware.radio.network.UsageSetting;
 
 /**
  * Interface declaring response functions to solicited radio requests for network APIs.
@@ -549,4 +550,30 @@
      *   RadioError:SIM_ABSENT
      */
     void supplyNetworkDepersonalizationResponse(in RadioResponseInfo info, in int remainingRetries);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error.
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:SIM_ABSENT
+     */
+    oneway void setUsageSettingResponse(in RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error.
+     * @param usageSetting the usage setting for the current SIM.
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:SIM_ABSENT
+     */
+    oneway void getUsageSettingResponse(in RadioResponseInfo info, in UsageSetting usageSetting);
 }
diff --git a/radio/aidl/android/hardware/radio/network/UsageSetting.aidl b/radio/aidl/android/hardware/radio/network/UsageSetting.aidl
new file mode 100644
index 0000000..ba8fe93
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/network/UsageSetting.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.network;
+
+/**
+ * Cellular usage setting with values according to 3gpp 24.301 sec 4.3 and 3gpp 24.501 sec 4.3.
+ *
+ * <p>Also refer to "UE's usage setting" as defined in 3gpp 24.301 section 3.1 and 3gpp 23.221
+ * Annex A.
+ */
+@VintfStability
+@Backing(type="int")
+enum UsageSetting {
+    /**
+     * UE operates in voice-centric mode. Generally speaking, in this mode of operation, the UE
+     * will not remain camped on a cell or attached to a network unless that cell/network provides
+     * voice service.
+     */
+    VOICE_CENTRIC = 1,
+
+    /**
+     * UE operates in data-centric mode. Generally speaking, in this mode of operation, the UE
+     * will not reselect away from a cell/network that only provides data services.
+     */
+    DATA_CENTRIC = 2,
+}