diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl
index 2930338..5ccf584 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl
@@ -39,4 +39,6 @@
   oneway void notifyImsTraffic(int serial, int token, android.hardware.radio.ims.ImsTrafficType imsTrafficType, boolean isStart);
   oneway void performAcbCheck(int serial, int token, android.hardware.radio.ims.ImsTrafficType imsTrafficType);
   oneway void setResponseFunctions(in android.hardware.radio.ims.IRadioImsResponse radioImsResponse, in android.hardware.radio.ims.IRadioImsIndication radioImsIndication);
+  oneway void setAnbrEnabled(int serial, int qosSessionId, boolean isEnabled);
+  oneway void sendAnbrQuery(int serial, int qosSessionId, android.hardware.radio.ims.ImsStreamDirection direction, int bitsPerSecond);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl
index 0246af1..06f7fa0 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl
@@ -36,4 +36,5 @@
 interface IRadioImsIndication {
   oneway void onConnectionSetupFailure(in android.hardware.radio.RadioIndicationType type, int token, in android.hardware.radio.ims.ConnectionFailureInfo info);
   oneway void onAccessAllowed(in android.hardware.radio.RadioIndicationType type, int token);
+  oneway void notifyAnbr(in android.hardware.radio.RadioIndicationType type, int qosSessionId, android.hardware.radio.ims.ImsStreamDirection direction, int bitsPerSecond);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl
index 58f7eb9..60f396f 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl
@@ -38,4 +38,6 @@
   oneway void updateImsRegistrationInfoResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void notifyImsTrafficResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void performAcbCheckResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void setAnbrEnabledResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void sendAnbrQueryResponse(in android.hardware.radio.RadioResponseInfo info);
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsStreamDirection.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsStreamDirection.aidl
new file mode 100644
index 0000000..b5a33c7
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsStreamDirection.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 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.ims;
+@Backing(type="int") @VintfStability
+enum ImsStreamDirection {
+    UPLINK = 1,
+    DOWNLINK = 2,
+}
\ No newline at end of file
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl b/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl
index 1e5e2f7..cae6bd0 100644
--- a/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl
+++ b/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl
@@ -21,6 +21,7 @@
 import android.hardware.radio.ims.IRadioImsIndication;
 import android.hardware.radio.ims.IRadioImsResponse;
 import android.hardware.radio.ims.SrvccCall;
+import android.hardware.radio.ims.ImsStreamDirection;
 
 /**
  * This interface is used by IMS telephony layer to talk to cellular radio.
@@ -105,4 +106,34 @@
      */
     void setResponseFunctions(in IRadioImsResponse radioImsResponse,
             in IRadioImsIndication radioImsIndication);
+
+    /**
+     * Access Network Bitrate Recommendation (ANBR), see 3GPP TS 26.114.
+     * This API is used to enable or disable the ANBR feature
+     * for the bearer corresponding to the qosSessionId
+     * This will be invoked when both parties in a call support the ANBR feature
+     * In case of video call, the modem shall use qosSessionId to identify
+     * appropriate media stream
+     *
+     * @param serial Serial number of request
+     * @param qosSessionId QoS session ID is used to identify media stream such as audio or video
+     * @param isEnabled True if Anbr feature is enabled, false otherwise
+     *
+     * Response function is IRadioImsResponse.setAnbrEnabledResponse()
+     */
+    void setAnbrEnabled(int serial, int qosSessionId, boolean isEnabled);
+
+    /**
+     * Access Network Bitrate Recommendation Query (ANBRQ), see 3GPP TS 26.114.
+     * This API triggers radio to send ANBRQ message
+     * to the access network to query the desired bitrate.
+     *
+     * @param serial Serial number of request
+     * @param qosSessionId QoS session ID is used to identify media stream such as audio or video
+     * @param direction Direction of this packet stream (e.g. uplink or downlink)
+     * @param bitsPerSecond The bit rate requested by the opponent UE
+     *
+     * Response function is IRadioImsResponse.sendAnbrQueryResponse()
+     */
+    void sendAnbrQuery(int serial, int qosSessionId, ImsStreamDirection direction, int bitsPerSecond);
 }
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl b/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl
index 2731c80..317158c 100644
--- a/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl
+++ b/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl
@@ -18,6 +18,7 @@
 
 import android.hardware.radio.RadioIndicationType;
 import android.hardware.radio.ims.ConnectionFailureInfo;
+import android.hardware.radio.ims.ImsStreamDirection;
 
 /**
  * Interface declaring unsolicited radio indications for ims APIs.
@@ -43,4 +44,17 @@
      * @param type Type of radio indication
      */
     void onAccessAllowed(in RadioIndicationType type, int token);
+
+    /**
+     * Access Network Bitrate Recommendation (ANBR), see 3GPP TS 26.114.
+     * Notifies the bit rate received from the network via ANBR message
+     *
+     * @param type Type of radio indication
+     * @param qosSessionId QoS session ID is used to identify media stream such as audio or video
+     * @param direction Direction of this packet stream (e.g. uplink or downlink)
+     * @param bitsPerSecond The recommended bit rate for the UE
+     * for a specific logical channel and a specific direction by NW
+     */
+     void notifyAnbr(in RadioIndicationType type, int qosSessionId, ImsStreamDirection direction,
+            int bitsPerSecond);
 }
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
index 8a736fa..7cc58a6 100644
--- a/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
+++ b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
@@ -91,4 +91,38 @@
      *   RadioError:NO_RESOURCES
      */
     void performAcbCheckResponse(in RadioResponseInfo info);
+
+    /**
+     * @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:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void setAnbrEnabledResponse(in RadioResponseInfo info);
+
+    /**
+     * @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:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void sendAnbrQueryResponse(in RadioResponseInfo info);
 }
diff --git a/radio/aidl/android/hardware/radio/ims/ImsStreamDirection.aidl b/radio/aidl/android/hardware/radio/ims/ImsStreamDirection.aidl
new file mode 100644
index 0000000..8336a74
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/ImsStreamDirection.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2022 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.ims;
+
+@VintfStability
+@Backing(type="int")
+enum ImsStreamDirection {
+    /** DIRECTION_UPLINK - From UE to Network **/
+    UPLINK = 1,
+    /** DIRECTION_DOWNLINK - From Network to UE **/
+    DOWNLINK = 2,
+}
diff --git a/radio/aidl/vts/radio_ims_indication.cpp b/radio/aidl/vts/radio_ims_indication.cpp
index 8c4aa14..79b4c3b 100644
--- a/radio/aidl/vts/radio_ims_indication.cpp
+++ b/radio/aidl/vts/radio_ims_indication.cpp
@@ -27,3 +27,8 @@
         int /*token*/) {
     return ndk::ScopedAStatus::ok();
 }
+
+ndk::ScopedAStatus RadioImsIndication::notifyAnbr(RadioIndicationType /*type*/,
+        int /*qosSessionId*/, int /*bitsPerSecond*/) {
+    return ndk::ScopedAStatus::ok();
+}
\ No newline at end of file
diff --git a/radio/aidl/vts/radio_ims_response.cpp b/radio/aidl/vts/radio_ims_response.cpp
index f9f3401..dd629a5 100644
--- a/radio/aidl/vts/radio_ims_response.cpp
+++ b/radio/aidl/vts/radio_ims_response.cpp
@@ -42,3 +42,15 @@
     parent_ims.notify(info.serial);
     return ndk::ScopedAStatus::ok();
 }
+
+ndk::ScopedAStatus RadioImsResponse::setAnbrEnabledResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus RadioImsResponse::sendAnbrQueryResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
\ No newline at end of file
diff --git a/radio/aidl/vts/radio_ims_test.cpp b/radio/aidl/vts/radio_ims_test.cpp
index 62a18f1..8db8791 100644
--- a/radio/aidl/vts/radio_ims_test.cpp
+++ b/radio/aidl/vts/radio_ims_test.cpp
@@ -162,6 +162,58 @@
     verifyError(radioRsp_ims->rspInfo.error);
 }
 
+/*
+ * Test IRadioIms.setAnbrEnabled() for the response returned.
+ */
+TEST_P(RadioImsTest, setAnbrEnabled) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping setAnbrEnabled because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running setAnbrEnabled because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    ndk::ScopedAStatus res =
+            radio_ims->setAnbrEnabled(serial, 1, true);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("setAnbrEnabled, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
+/*
+ * Test IRadioIms.sendAnbrQuery() for the response returned.
+ */
+TEST_P(RadioImsTest, sendAnbrQuery) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping sendAnbrQuery because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running sendAnbrQuery because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    ndk::ScopedAStatus res =
+            radio_ims->sendAnbrQuery(serial, 1, 0, 13200);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("sendAnbrQuery, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
 void RadioImsTest::verifyError(RadioError resp) {
     switch (resp) {
         case RadioError::NONE: