diff --git a/TS26510_CommonData.yaml b/TS26510_CommonData.yaml
index 8cc6d8dcd5ae1387f791f37912dcdd0e139fe169..3c5f65bdd1510d71bdc69463e71d502674636eee 100755
--- a/TS26510_CommonData.yaml
+++ b/TS26510_CommonData.yaml
@@ -261,12 +261,17 @@ components:
       type: object
       required:
         - relativePath
-        - contentType
+      oneOf:
+        - required: [contentType]
+        - required: [protocol]
       properties:
         relativePath:
           $ref: 'TS26510_CommonData.yaml#/components/schemas/RelativeUrl'
         contentType:
           type: string
+          description: "A MIME media content type."
+        protocol:
+          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uri'
         profiles:
           type: array
           items:
diff --git a/TS26510_Maf_Provisioning_ContentProtocols.yaml b/TS26510_Maf_Provisioning_ContentProtocols.yaml
index b007b3af4767f6af7cb5b832a24a9684b7c98baf..53b73bbb80bbcca3e62a8e4337951f405808393f 100644
--- a/TS26510_Maf_Provisioning_ContentProtocols.yaml
+++ b/TS26510_Maf_Provisioning_ContentProtocols.yaml
@@ -98,6 +98,16 @@ components:
           items:
             $ref: '#/components/schemas/ContentProtocolDescriptor'
           minItems: 1
+        downlinkDistributionProtocols:
+          type: array
+          items:
+            $ref: '#/components/schemas/ContentProtocolDescriptor'
+          minItems: 1
+        uplinkContributionProtocols:
+          type: array
+          items:
+            $ref: '#/components/schemas/ContentProtocolDescriptor'
+          minItems: 1
         geoFencingLocatorTypes:
           type: array
           items:
diff --git a/TS26510_Maf_SessionHandling_ServiceAccessInformation.yaml b/TS26510_Maf_SessionHandling_ServiceAccessInformation.yaml
index b72363698c34b8c18a5d0892f9af253bc214cea8..59002330af522217224092dd03c623e380a9f3d1 100644
--- a/TS26510_Maf_SessionHandling_ServiceAccessInformation.yaml
+++ b/TS26510_Maf_SessionHandling_ServiceAccessInformation.yaml
@@ -88,12 +88,17 @@ components:
       type: object
       required:
         - locator
-        - contentType
+      oneOf:
+        - required: [contentType]
+        - required: [protocol]
       properties:
         locator:
           $ref: 'TS26510_CommonData.yaml#/components/schemas/AbsoluteUrl'
         contentType:
           type: string
+          description: "A MIME media content type."
+        protocol:
+          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uri'
         profiles:
           type: array
           items: