diff --git a/33128/r18/TS33128Payloads.asn b/33128/r18/TS33128Payloads.asn
index f0e6dc7314cd3b31f59df8fea4b791f063234d3b..aa9398d8e6e389b49722b2783ec97d7052700e82 100644
--- a/33128/r18/TS33128Payloads.asn
+++ b/33128/r18/TS33128Payloads.asn
@@ -6137,7 +6137,10 @@ Point ::= SEQUENCE
 PointUncertaintyCircle ::= SEQUENCE
 {
     geographicalCoordinates             [1] GeographicalCoordinates,
-    uncertainty                         [2] Uncertainty
+-- The uncertainty parameter has been deprecated and shall be set to 0.
+-- The uncertaintySBI parameter shall be used instead.
+    uncertainty                         [2] Uncertainty,
+    uncertaintySBI                      [3] UncertaintySBI OPTIONAL
 }
 
 -- TS 29.572 [24], clause 6.1.6.2.8
@@ -6167,8 +6170,11 @@ PointAltitudeUncertainty ::= SEQUENCE
     point                               [1] GeographicalCoordinates,
     altitude                            [2] Altitude,
     uncertaintyEllipse                  [3] UncertaintyEllipse,
+-- The uncertaintyAltitude parameter has been deprecated and shall be set to 0.
+-- The uncertaintyAltitudeSBI parameter shall be used instead.
     uncertaintyAltitude                 [4] Uncertainty,
-    confidence                          [5] Confidence
+    confidence                          [5] Confidence,
+    uncertaintyAltitudeSBI              [6] UncertaintySBI OPTIONAL
 }
 
 -- TS 29.572 [24], clause 6.1.6.2.12
@@ -6176,10 +6182,13 @@ EllipsoidArc ::= SEQUENCE
 {
     point                               [1] GeographicalCoordinates,
     innerRadius                         [2] InnerRadius,
+-- The uncertaintyRadius parameter has been deprecated and shall be set to 0.
+-- The uncertaintyRadiusSBI parameter shall be used instead.
     uncertaintyRadius                   [3] Uncertainty,
     offsetAngle                         [4] Angle,
     includedAngle                       [5] Angle,
-    confidence                          [6] Confidence
+    confidence                          [6] Confidence,
+    uncertaintyRadiusSBI                [7] UncertaintySBI OPTIONAL
 }
 
 -- TS 29.572 [24], clause 6.1.6.2.4
@@ -6193,9 +6202,15 @@ GeographicalCoordinates ::= SEQUENCE
 -- TS 29.572 [24], clause 6.1.6.2.22
 UncertaintyEllipse ::= SEQUENCE
 {
+-- The semiMajor parameter has been deprecated and shall be set to 0.
+-- The semiMajorSBI parameter shall be used instead.
     semiMajor                           [1] Uncertainty,
+-- The semiMinor parameter has been deprecated and shall be set to 0.
+-- The semiMinorSBI parameter shall be used instead.
     semiMinor                           [2] Uncertainty,
-    orientationMajor                    [3] Orientation
+    orientationMajor                    [3] Orientation,
+    semiMajorSBI                        [4] UncertaintySBI OPTIONAL,
+    semiMinorSBI                        [5] UncertaintySBI OPTIONAL
 }
 
 -- TS 29.572 [24], clause 6.1.6.2.18
@@ -6236,7 +6251,7 @@ HorizontalWithVerticalVelocityAndUncertainty ::= SEQUENCE
 -- The following types are described in TS 29.572 [24], table 6.1.6.3.2-1
 Altitude ::= UTF8String
 Angle ::= INTEGER (0..360)
-Uncertainty ::= INTEGER (0..127)
+UncertaintySBI ::= UTF8String
 Orientation ::= INTEGER (0..180)
 Confidence ::= INTEGER (0..100)
 InnerRadius ::= INTEGER (0..327675)
@@ -6246,6 +6261,8 @@ VerticalSpeed ::= UTF8String
 SpeedUncertainty ::= UTF8String
 BarometricPressure ::= INTEGER (30000..115000)
 
+Uncertainty ::= INTEGER (0..127)
+
 -- TS 29.572 [24], clause 6.1.6.3.13
 VerticalDirection ::= ENUMERATED
 {