diff --git a/uwb/aidl/aidl_api/android.hardware.uwb/current/android/hardware/uwb/IUwbChip.aidl b/uwb/aidl/aidl_api/android.hardware.uwb/current/android/hardware/uwb/IUwbChip.aidl
index c4cb47b..c7708f1 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb/current/android/hardware/uwb/IUwbChip.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb/current/android/hardware/uwb/IUwbChip.aidl
@@ -40,6 +40,7 @@
   void open(in android.hardware.uwb.IUwbClientCallback clientCallback);
   void close();
   void coreInit();
+  void sessionInit(int sessionId);
   int getSupportedAndroidUciVersion();
   long getSupportedAndroidCapabilities();
   int sendUciMessage(in byte[] data);
diff --git a/uwb/aidl/android/hardware/uwb/IUwbChip.aidl b/uwb/aidl/android/hardware/uwb/IUwbChip.aidl
index 0c98611..f2bb0f1 100644
--- a/uwb/aidl/android/hardware/uwb/IUwbChip.aidl
+++ b/uwb/aidl/android/hardware/uwb/IUwbChip.aidl
@@ -50,6 +50,14 @@
     void coreInit();
 
     /**
+     * Perform any necessary UWB session initializations.
+     * This must be invoked by the framework at the beginging of every new ranging session.
+     *
+     * @param sessionId Session identifier as defined in the UCI specification.
+     */
+    void sessionInit(int sessionId);
+
+    /**
      * Supported version of vendor UCI specification.
      *
      * @return Returns the version of the "android.hardware.uwb.fira_android" types-only
diff --git a/uwb/aidl/default/uwb_chip.cpp b/uwb/aidl/default/uwb_chip.cpp
index 10dbdb6..a5a3f4a 100644
--- a/uwb/aidl/default/uwb_chip.cpp
+++ b/uwb/aidl/default/uwb_chip.cpp
@@ -51,6 +51,10 @@
     return ndk::ScopedAStatus::ok();
 }
 
+::ndk::ScopedAStatus UwbChip::sessionInit(int /* sessionId */) {
+    return ndk::ScopedAStatus::ok();
+}
+
 ::ndk::ScopedAStatus UwbChip::getSupportedAndroidUciVersion(int32_t* version) {
     *version = kAndroidUciVersion;
     return ndk::ScopedAStatus::ok();
diff --git a/uwb/aidl/default/uwb_chip.h b/uwb/aidl/default/uwb_chip.h
index ca97120..46cecd4 100644
--- a/uwb/aidl/default/uwb_chip.h
+++ b/uwb/aidl/default/uwb_chip.h
@@ -37,6 +37,7 @@
     ::ndk::ScopedAStatus open(const std::shared_ptr<IUwbClientCallback>& clientCallback) override;
     ::ndk::ScopedAStatus close() override;
     ::ndk::ScopedAStatus coreInit() override;
+    ::ndk::ScopedAStatus sessionInit(int sesionId) override;
     ::ndk::ScopedAStatus getSupportedAndroidUciVersion(int32_t* version) override;
     ::ndk::ScopedAStatus getSupportedAndroidCapabilities(int64_t* capabilities) override;
     ::ndk::ScopedAStatus sendUciMessage(const std::vector<uint8_t>& data,
diff --git a/uwb/aidl/vts/VtsHalUwbTargetTest.cpp b/uwb/aidl/vts/VtsHalUwbTargetTest.cpp
index 3820c0f..1da4432 100644
--- a/uwb/aidl/vts/VtsHalUwbTargetTest.cpp
+++ b/uwb/aidl/vts/VtsHalUwbTargetTest.cpp
@@ -166,6 +166,11 @@
     EXPECT_TRUE(iuwb_chip->coreInit().isOk());
 }
 
+TEST_P(UwbAidl, ChipSessionInit) {
+    const auto iuwb_chip = getAnyChipAndOpen();
+    EXPECT_TRUE(iuwb_chip->sessionInit(0).isOk());
+}
+
 TEST_P(UwbAidl, ChipGetSupportedAndroidUciVersion) {
     const auto iuwb_chip = getAnyChipAndOpen();
     EXPECT_TRUE(iuwb_chip->coreInit().isOk());