diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/BlocklistedSource.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/BlocklistedSource.aidl
index 89f5d53..0302676 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/BlocklistedSource.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/BlocklistedSource.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/CorrelationVector.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/CorrelationVector.aidl
new file mode 100644
index 0000000..1f713fa
--- /dev/null
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/CorrelationVector.aidl
@@ -0,0 +1,26 @@
+///////////////////////////////////////////////////////////////////////////////
+// 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.gnss;
+@VintfStability
+parcelable CorrelationVector {
+  int frequencyOffsetMps;
+  double samplingWidthM;
+  double samplingStartM;
+  int[] magnitude;
+}
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/ElapsedRealtime.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/ElapsedRealtime.aidl
index a0e8de4..933f659 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/ElapsedRealtime.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/ElapsedRealtime.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssClock.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssClock.aidl
index 42b940e..53ac0ef 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssClock.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssClock.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssConstellationType.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssConstellationType.aidl
index 30d0227..18fdfa9 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssConstellationType.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssConstellationType.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssData.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssData.aidl
index 7ffabd2..73ead10 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssData.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssData.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMeasurement.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMeasurement.aidl
index 7328f7e..3d287e4 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMeasurement.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMeasurement.aidl
@@ -44,6 +44,7 @@
   double satelliteInterSignalBiasNs;
   double satelliteInterSignalBiasUncertaintyNs;
   android.hardware.gnss.SatellitePvt satellitePvt;
+  android.hardware.gnss.CorrelationVector[] correlationVectors;
   const int HAS_SNR = 1;
   const int HAS_CARRIER_FREQUENCY = 512;
   const int HAS_CARRIER_CYCLES = 1024;
@@ -55,6 +56,7 @@
   const int HAS_SATELLITE_ISB = 262144;
   const int HAS_SATELLITE_ISB_UNCERTAINTY = 524288;
   const int HAS_SATELLITE_PVT = 1048576;
+  const int HAS_CORRELATION_VECTOR = 2097152;
   const int STATE_UNKNOWN = 0;
   const int STATE_CODE_LOCK = 1;
   const int STATE_BIT_SYNC = 2;
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMultipathIndicator.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMultipathIndicator.aidl
index 75ca3af..5da60f7 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMultipathIndicator.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssMultipathIndicator.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssPowerStats.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssPowerStats.aidl
index d385fd4..358b570 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssPowerStats.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssPowerStats.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssSignalType.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssSignalType.aidl
index f10b943..b2a498d 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssSignalType.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/GnssSignalType.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnss.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnss.aidl
index 10ac150..bd6f1ff 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnss.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnss.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssCallback.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssCallback.aidl
index bf6d3c1..a04ad66 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssCallback.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssCallback.aidl
@@ -21,5 +21,6 @@
 interface IGnssCallback {
   void gnssSetCapabilitiesCb(in int capabilities);
   const int CAPABILITY_SATELLITE_BLOCKLIST = 1;
+  const int CAPABILITY_CORRELATION_VECTOR = 4096;
   const int CAPABILITY_SATELLITE_PVT = 8192;
 }
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssConfiguration.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssConfiguration.aidl
index 5af30cf..eb4ad82 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssConfiguration.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssConfiguration.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementCallback.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementCallback.aidl
index e05e9b9..764b896 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementCallback.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementCallback.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementInterface.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementInterface.aidl
index 9576205..7cb7395 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementInterface.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssMeasurementInterface.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
@@ -18,6 +19,6 @@
 package android.hardware.gnss;
 @VintfStability
 interface IGnssMeasurementInterface {
-  void setCallback(in android.hardware.gnss.IGnssMeasurementCallback callback, in boolean enableFullTracking);
+  void setCallback(in android.hardware.gnss.IGnssMeasurementCallback callback, in boolean enableFullTracking, in boolean enableCorrVecOutputs);
   void close();
 }
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndication.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndication.aidl
index 843489e..c44903e 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndication.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndication.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndicationCallback.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndicationCallback.aidl
index 5281d29..12e6762 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndicationCallback.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPowerIndicationCallback.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsds.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsds.aidl
index ddef928..cae2ea6 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsds.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsds.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsdsCallback.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsdsCallback.aidl
index 8413d2c..6888632 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsdsCallback.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/IGnssPsdsCallback.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/PsdsType.aidl b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/PsdsType.aidl
index 9d1984e..d348c63 100644
--- a/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/PsdsType.aidl
+++ b/gnss/aidl/aidl_api/android.hardware.gnss/current/android/hardware/gnss/PsdsType.aidl
@@ -2,13 +2,14 @@
 // THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
 ///////////////////////////////////////////////////////////////////////////////
 
-// This file is a snapshot of an AIDL interface (or parcelable). Do not try to
-// edit this file. It looks like you are doing that because you have modified
-// an AIDL interface in a backward-incompatible way, e.g., deleting a function
-// from an interface or a field from a parcelable and it broke the build. That
-// breakage is intended.
+// 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 changes to the AIDL files built
+// 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
diff --git a/gnss/aidl/android/hardware/gnss/CorrelationVector.aidl b/gnss/aidl/android/hardware/gnss/CorrelationVector.aidl
new file mode 100644
index 0000000..22a80ce
--- /dev/null
+++ b/gnss/aidl/android/hardware/gnss/CorrelationVector.aidl
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2020 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.gnss;
+
+/**
+ * Contains info about the correlation output of incoming GNSS signal and a local copy of
+ * its corresponding spreading code at a given frequency offset.
+ */
+@VintfStability
+parcelable CorrelationVector {
+
+    /**
+     * Frequency offset from reported pseudorange rate for this Correlation Vector.
+     */
+    int frequencyOffsetMps;
+
+    /**
+     * Space between correlation samples in meters.
+     */
+    double samplingWidthM;
+
+    /**
+     * Offset of the first sampling bin in meters.
+     * The following sampling bins are located at positive offsets from this value as follows:
+     * samplingStartM, samplingStartM + samplingWidthM, ... , samplingStartM +
+     * (magnitude.size-1) * samplingWidthM.
+     */
+    double samplingStartM;
+
+    /**
+     * Normalized correlation magnitude values from -1 to 1, the reported value must be encoded as
+     * signed 16 bit integer where 1 is represented by 32767 and -1 is represented by -32768.
+     *
+     * The length of the array is defined by the GNSS chipset.
+     */
+    int[] magnitude;
+}
\ No newline at end of file
diff --git a/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl b/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
index 09897fb..2c56a41 100644
--- a/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
+++ b/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
@@ -16,6 +16,7 @@
 
 package android.hardware.gnss;
 
+import android.hardware.gnss.CorrelationVector;
 import android.hardware.gnss.GnssSignalType;
 import android.hardware.gnss.GnssMultipathIndicator;
 import android.hardware.gnss.SatellitePvt;
@@ -62,6 +63,10 @@
      * Bit mask indicating a valid satellite PVT is stored in the GnssMeasurement.
      */
     const int HAS_SATELLITE_PVT              = 1 << 20;
+    /**
+     * Bit mask indicating valid correlation vectors are stored in the GnssMeasurement.
+     */
+    const int HAS_CORRELATION_VECTOR         = 1 << 21;
 
     /**
      * A bitfield of flags indicating the validity of the fields in this GnssMeasurement. The bit
@@ -625,4 +630,13 @@
      * If the data is available, gnssMeasurementFlags must contain HAS_SATELLITE_PVT.
      */
     SatellitePvt satellitePvt;
+
+    /**
+     * A list of Correlation Vectors with each vector corresponding to a frequency offset.
+     *
+     * To represent correlation values over a 2D spaces (delay and frequency), a CorrelationVector
+     * is required per frequency offset, and each CorrelationVector contains correlation values
+     * at equally spaced spatial offsets.
+     */
+    CorrelationVector[] correlationVectors;
 }
\ No newline at end of file
diff --git a/gnss/aidl/android/hardware/gnss/IGnssCallback.aidl b/gnss/aidl/android/hardware/gnss/IGnssCallback.aidl
index 1ea6faa..81e0638 100644
--- a/gnss/aidl/android/hardware/gnss/IGnssCallback.aidl
+++ b/gnss/aidl/android/hardware/gnss/IGnssCallback.aidl
@@ -27,9 +27,12 @@
 @VintfStability
 interface IGnssCallback {
 
-    /** Capability bit mask indicating GNSS supports blocklisting satellites */
+    /** Capability bit mask indicating that GNSS supports blocklisting satellites */
     const int CAPABILITY_SATELLITE_BLOCKLIST = 1 << 0;
 
+    /** Capability bit mask indicating that GNSS supports correlation vector */
+    const int CAPABILITY_CORRELATION_VECTOR =  1 << 12;
+
     /** Capability bit mask indicating that GNSS supports satellite PVT */
     const int CAPABILITY_SATELLITE_PVT       = 1 << 13;
 
diff --git a/gnss/aidl/android/hardware/gnss/IGnssMeasurementInterface.aidl b/gnss/aidl/android/hardware/gnss/IGnssMeasurementInterface.aidl
index fdeebde..04cdf64 100644
--- a/gnss/aidl/android/hardware/gnss/IGnssMeasurementInterface.aidl
+++ b/gnss/aidl/android/hardware/gnss/IGnssMeasurementInterface.aidl
@@ -37,12 +37,16 @@
      *     The GNSS chipset is allowed to consume more power in this mode. If false, API must
      *     optimize power via duty cycling, constellations and frequency limits, etc.
      *
+     * @param enableCorrVecOutputs If true, enable correlation vectors as part of the raw GNSS
+     *     measurements outputs. If false, disable correlation vectors.
+     *
      * @return initRet Returns SUCCESS if successful. Returns ERROR_ALREADY_INIT if a callback has
      *     already been registered without a corresponding call to 'close'. Returns ERROR_GENERIC
      *     for any other error. The HAL must not generate any other updates upon returning this
      *     error code.
      */
-    void setCallback(in IGnssMeasurementCallback callback, in boolean enableFullTracking);
+    void setCallback(in IGnssMeasurementCallback callback, in boolean enableFullTracking,
+                     in boolean enableCorrVecOutputs);
 
     /**
      * Stops updates from the HAL, and unregisters the callback routines. After a call to close(),
diff --git a/gnss/aidl/default/Gnss.cpp b/gnss/aidl/default/Gnss.cpp
index 661f351..435afa3 100644
--- a/gnss/aidl/default/Gnss.cpp
+++ b/gnss/aidl/default/Gnss.cpp
@@ -37,7 +37,9 @@
     sGnssCallback = callback;
 
     int capabilities = (int)(IGnssCallback::CAPABILITY_SATELLITE_BLOCKLIST |
-                             IGnssCallback::CAPABILITY_SATELLITE_PVT);
+                             IGnssCallback::CAPABILITY_SATELLITE_PVT |
+                             IGnssCallback::CAPABILITY_CORRELATION_VECTOR);
+
     auto status = sGnssCallback->gnssSetCapabilitiesCb(capabilities);
     if (!status.isOk()) {
         ALOGE("%s: Unable to invoke callback.gnssSetCapabilities", __func__);
diff --git a/gnss/aidl/default/GnssMeasurementInterface.cpp b/gnss/aidl/default/GnssMeasurementInterface.cpp
index d726d95..cae9499 100644
--- a/gnss/aidl/default/GnssMeasurementInterface.cpp
+++ b/gnss/aidl/default/GnssMeasurementInterface.cpp
@@ -34,8 +34,10 @@
 }
 
 ndk::ScopedAStatus GnssMeasurementInterface::setCallback(
-        const std::shared_ptr<IGnssMeasurementCallback>& callback, const bool enableFullTracking) {
-    ALOGD("setCallback: enableFullTracking: %d", (int)enableFullTracking);
+        const std::shared_ptr<IGnssMeasurementCallback>& callback, const bool enableFullTracking,
+        const bool enableCorrVecOutputs) {
+    ALOGD("setCallback: enableFullTracking: %d enableCorrVecOutputs: %d", (int)enableFullTracking,
+          (int)enableCorrVecOutputs);
     std::unique_lock<std::mutex> lock(mMutex);
     sCallback = callback;
 
@@ -43,7 +45,7 @@
         ALOGW("GnssMeasurement callback already set. Resetting the callback...");
         stop();
     }
-    start();
+    start(enableCorrVecOutputs);
 
     return ndk::ScopedAStatus::ok();
 }
@@ -56,12 +58,12 @@
     return ndk::ScopedAStatus::ok();
 }
 
-void GnssMeasurementInterface::start() {
+void GnssMeasurementInterface::start(const bool enableCorrVecOutputs) {
     ALOGD("start");
     mIsActive = true;
-    mThread = std::thread([this]() {
+    mThread = std::thread([this, enableCorrVecOutputs]() {
         while (mIsActive == true) {
-            auto measurement = Utils::getMockMeasurement();
+            auto measurement = Utils::getMockMeasurement(enableCorrVecOutputs);
             this->reportMeasurement(measurement);
 
             std::this_thread::sleep_for(std::chrono::milliseconds(mMinIntervalMillis));
diff --git a/gnss/aidl/default/GnssMeasurementInterface.h b/gnss/aidl/default/GnssMeasurementInterface.h
index 69cd871..db63515 100644
--- a/gnss/aidl/default/GnssMeasurementInterface.h
+++ b/gnss/aidl/default/GnssMeasurementInterface.h
@@ -29,11 +29,12 @@
     GnssMeasurementInterface();
     ~GnssMeasurementInterface();
     ndk::ScopedAStatus setCallback(const std::shared_ptr<IGnssMeasurementCallback>& callback,
-                                   const bool enableFullTracking) override;
+                                   const bool enableFullTracking,
+                                   const bool enableCorrVecOutputs) override;
     ndk::ScopedAStatus close() override;
 
   private:
-    void start();
+    void start(const bool enableCorrVecOutputs);
     void stop();
     void reportMeasurement(const GnssData&);
 
diff --git a/gnss/aidl/vts/gnss_hal_test_cases.cpp b/gnss/aidl/vts/gnss_hal_test_cases.cpp
index 18fda45..ae0551d 100644
--- a/gnss/aidl/vts/gnss_hal_test_cases.cpp
+++ b/gnss/aidl/vts/gnss_hal_test_cases.cpp
@@ -69,15 +69,21 @@
  * 2. Sets a GnssMeasurementCallback, waits for a measurement, and verifies fields are valid.
  */
 TEST_P(GnssHalTest, TestGnssMeasurementExtension) {
+    const bool kIsCorrelationVectorSupported = aidl_gnss_cb_->last_capabilities_ &
+                                               (int)GnssCallbackAidl::CAPABILITY_CORRELATION_VECTOR;
     const int kFirstGnssMeasurementTimeoutSeconds = 10;
+
     bool has_capability_satpvt = false;
+
     sp<IGnssMeasurementInterface> iGnssMeasurement;
     auto status = aidl_gnss_hal_->getExtensionGnssMeasurement(&iGnssMeasurement);
     ASSERT_TRUE(status.isOk());
     ASSERT_TRUE(iGnssMeasurement != nullptr);
 
     auto callback = sp<GnssMeasurementCallbackAidl>::make();
-    status = iGnssMeasurement->setCallback(callback, /* enableFullTracking= */ true);
+    status =
+            iGnssMeasurement->setCallback(callback, /* enableFullTracking= */ true,
+                                          /* enableCorrVecOutputs */ kIsCorrelationVectorSupported);
     ASSERT_TRUE(status.isOk());
 
     android::hardware::gnss::GnssData lastMeasurement;
@@ -118,7 +124,9 @@
                          GnssMeasurement::HAS_FULL_ISB | GnssMeasurement::HAS_FULL_ISB_UNCERTAINTY |
                          GnssMeasurement::HAS_SATELLITE_ISB |
                          GnssMeasurement::HAS_SATELLITE_ISB_UNCERTAINTY |
-                         GnssMeasurement::HAS_SATELLITE_PVT));
+                         GnssMeasurement::HAS_SATELLITE_PVT |
+                         GnssMeasurement::HAS_CORRELATION_VECTOR));
+
         if ((measurement.flags & GnssMeasurement::HAS_SATELLITE_PVT) &&
             (has_capability_satpvt == true)) {
             ASSERT_TRUE(measurement.satellitePvt.satPosEcef.posXMeters >= -43000000 &&
@@ -136,6 +144,20 @@
                         measurement.satellitePvt.satVelEcef.velZMps <= 4000);
             ASSERT_TRUE(measurement.satellitePvt.satVelEcef.ureRateMps > 0);
         }
+
+        if (kIsCorrelationVectorSupported &&
+            measurement.flags & GnssMeasurement::HAS_CORRELATION_VECTOR) {
+            ASSERT_TRUE(measurement.correlationVectors.size() > 0);
+            for (const auto& correlationVector : measurement.correlationVectors) {
+                ASSERT_GE(correlationVector.frequencyOffsetMps, 0);
+                ASSERT_GT(correlationVector.samplingWidthM, 0);
+                ASSERT_GE(correlationVector.samplingStartM, 0);
+                ASSERT_TRUE(correlationVector.magnitude.size() > 0);
+                for (const auto& magnitude : correlationVector.magnitude) {
+                    ASSERT_TRUE(magnitude >= -32768 && magnitude <= 32767);
+                }
+            }
+        }
     }
 
     status = iGnssMeasurement->close();
diff --git a/gnss/common/utils/default/Utils.cpp b/gnss/common/utils/default/Utils.cpp
index 1079fa5..ccc7145 100644
--- a/gnss/common/utils/default/Utils.cpp
+++ b/gnss/common/utils/default/Utils.cpp
@@ -140,7 +140,7 @@
     return gnssData;
 }
 
-GnssData Utils::getMockMeasurement() {
+GnssData Utils::getMockMeasurement(const bool enableCorrVecOutputs) {
     aidl::android::hardware::gnss::GnssSignalType signalType = {
             .constellation = aidl::android::hardware::gnss::GnssConstellationType::GLONASS,
             .carrierFrequencyHz = 1.59975e+09,
@@ -187,7 +187,8 @@
                                               .satTimeCorrectionMeters = -7113.08964331,
                                               .satClkDriftMps = 0},
                              .ionoDelayMeters = 3.069949602639317e-08,
-                             .tropoDelayMeters = 3.882265204404031}};
+                             .tropoDelayMeters = 3.882265204404031},
+            .correlationVectors = {}};
 
     GnssClock clock = {.gnssClockFlags = GnssClock::HAS_FULL_BIAS | GnssClock::HAS_FULL_BIAS |
                                          GnssClock::HAS_BIAS_UNCERTAINTY | GnssClock::HAS_DRIFT |
@@ -208,6 +209,21 @@
             // or don't set the field.
             .timeUncertaintyNs = 1020400};
 
+    if (enableCorrVecOutputs) {
+        aidl::android::hardware::gnss::CorrelationVector correlationVector1 = {
+                .frequencyOffsetMps = 10,
+                .samplingWidthM = 30,
+                .samplingStartM = 0,
+                .magnitude = {0, 5000, 10000, 5000, 0, 0, 3000, 0}};
+        aidl::android::hardware::gnss::CorrelationVector correlationVector2 = {
+                .frequencyOffsetMps = 20,
+                .samplingWidthM = 30,
+                .samplingStartM = 0,
+                .magnitude = {0, 3000, 5000, 3000, 0, 0, 1000, 0}};
+        measurement.correlationVectors = {correlationVector1, correlationVector2};
+        measurement.flags |= GnssMeasurement::HAS_CORRELATION_VECTOR;
+    }
+
     GnssData gnssData = {
             .measurements = {measurement}, .clock = clock, .elapsedRealtime = timestamp};
     return gnssData;
diff --git a/gnss/common/utils/default/include/Utils.h b/gnss/common/utils/default/include/Utils.h
index 0ca1b00..771d39d 100644
--- a/gnss/common/utils/default/include/Utils.h
+++ b/gnss/common/utils/default/include/Utils.h
@@ -30,7 +30,8 @@
 namespace common {
 
 struct Utils {
-    static aidl::android::hardware::gnss::GnssData getMockMeasurement();
+    static aidl::android::hardware::gnss::GnssData getMockMeasurement(
+            const bool enableCorrVecOutputs);
     static V2_0::IGnssMeasurementCallback::GnssData getMockMeasurementV2_0();
     static V2_1::IGnssMeasurementCallback::GnssData getMockMeasurementV2_1();
     static V2_0::GnssLocation getMockLocationV2_0();