diff --git a/33128/r19/TS33128Payloads.asn b/33128/r19/TS33128Payloads.asn
index 34304db0a192b91c8ad50e121b04550b4dc2ac23..d7faa2f8ed5439443b6db108fe4e3eb6da3a84db 100644
--- a/33128/r19/TS33128Payloads.asn
+++ b/33128/r19/TS33128Payloads.asn
@@ -2530,7 +2530,8 @@ SMFPDUSessionEstablishment ::= SEQUENCE
     gEOSatelliteID                [29] GEOSatelliteID OPTIONAL,
     alternativeNSSAI              [30] AlternativeNSSAIList OPTIONAL,
     aNDSPRules                    [31] ANDSPRules OPTIONAL,
-    serviceLevelAAContainer       [32] ServiceLevelAAContainer OPTIONAL
+    serviceLevelAAContainer       [32] ServiceLevelAAContainer OPTIONAL,
+    servingSatelliteID            [33] SatelliteID OPTIONAL
 }
 
 -- See clause 6.2.3.2.3 for details of this structure
@@ -2561,7 +2562,8 @@ SMFPDUSessionModification ::= SEQUENCE
     proSeRemoteUEsReport        [23] ProSeRemoteUEsReport OPTIONAL,
     alternativeNSSAI            [24] AlternativeNSSAIList OPTIONAL,
     aNDSPRules                  [25] ANDSPRules OPTIONAL,
-    serviceLevelAAContainer     [26] ServiceLevelAAContainer OPTIONAL
+    serviceLevelAAContainer     [26] ServiceLevelAAContainer OPTIONAL,
+    servingSatelliteID          [27] SatelliteID OPTIONAL
 }
 
 -- See clause 6.2.3.2.4 for details of this structure
@@ -2616,7 +2618,8 @@ SMFStartOfInterceptionWithEstablishedPDUSession ::= SEQUENCE
     pFDDataForApps                                     [26] PFDDataForApps OPTIONAL,
     satelliteBackhaulCategory                          [27] SBIType OPTIONAL,
     gEOSatelliteID                                     [28] GEOSatelliteID OPTIONAL,
-    remoteUEsContextConnected                          [29] RemoteUEContextList OPTIONAL
+    remoteUEsContextConnected                          [29] RemoteUEContextList OPTIONAL,
+    servingSatelliteID                                 [30] SatelliteID OPTIONAL
 }
 
 -- See clause 6.2.3.2.6 for details of this structure
@@ -2854,7 +2857,8 @@ AccessInfo ::= SEQUENCE
     aNTypeToReactivate        [6] AccessType OPTIONAL,
     gTPTunnelInfo             [7] GTPTunnelInfo OPTIONAL,
     satelliteBackhaulCategory [8] SBIType OPTIONAL,
-    gEOSatelliteID            [9] GEOSatelliteID OPTIONAL
+    gEOSatelliteID            [9] GEOSatelliteID OPTIONAL,
+    servingSatelliteID        [10] SatelliteID OPTIONAL
 }
 
 -- see Clause 6.1.2 of TS 24.193[44] for the details of the ATSSS container contents.
@@ -3235,6 +3239,9 @@ ANDSPRule ::= CHOICE
     n3ANNodeConfiguration      [2] OCTET STRING
 }
 
+-- See table 5.4.2-1 of TS 29.571 [17]
+SatelliteID ::= UTF8String
+
 -- ================================
 -- PGW-C + SMF PDNConnection Events
 -- ================================