Content for TS 23.558 Word version: 19.3.0

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8.3.3.3 Information flows 8.3.3.3.1 General 8.3.3.3.2 Service provisioning request 8.3.3.3.3 Service provisioning response 8.3.3.3.4 Service provisioning subscription request 8.3.3.3.5 Service provisioning subscription response 8.3.3.3.6 Service provisioning notification 8.3.3.3.7 Service provisioning subscription update request 8.3.3.3.8 Service provisioning subscription update response 8.3.3.3.9 Service provisioning unsubscribe request 8.3.3.3.10 Service provisioning unsubscribe response 8.3.3.4 APIs 8.3.3.4.1 General 8.3.3.4.2 Eecs_ServiceProvisioning_Request operation 8.3.3.4.3 Eecs_ServiceProvisioning_Subscribe operation 8.3.3.4.4 Eecs_ServiceProvisioning_Notify operation 8.3.3.4.5 Eecs_ServiceProvisioning_UpdateSubscription operation 8.3.3.4.6 Eecs_ServiceProvisioning_Unsubscribe operation
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8.3.3.3 Information flows p. 71

8.3.3.3.1 General p. 71

The following information flows are specified for service provisioning:

Service provisioning request and response;
Service provisioning subscription request and response;
Service provisioning notification;
Service provisioning update request and response; and
Service provisioning unsubscribe request and response.

8.3.3.3.2 Service provisioning request p. 71

Table 8.3.3.3.2-1 describes the information elements for service provisioning request from the EEC to the ECS.

Table 8.3.3.3.2-1: Service provisioning request

Information element	Status	Description
EECID	M	Unique identifier of the EEC.
Security credentials	M	Security credentials resulting from a successful authorization for the edge computing service.
AC Profile(s) (NOTE)	O	Information about services the EEC wants to connect to, as described in Table 8.2.2-1.
Application information (NOTE)	O	List of information about services the EEC wants to connect to, including the option to provide application group profile information.
> AC Profile	M	Application Profile as described in Table 8.2.2-1.
> Application Group profile	O	Application Group profile associated with the AC Profile, as defined in Table 8.2.11-1.
EEC Service Continuity Support	O	Indicates if the EEC supports service continuity or not. The IE also indicates which ACR scenarios are supported by the EEC. When requesting service provisioning for T-EES discovery, if the EEC requires that T-EES must support "EEC executed ACR via T-EES" scenario, then EEC includes only "EEC executed ACR via T-EES" in this IE.
Prediction expiration time	O	The estimated time the UE may reach the Predicted/Expected UE location or EAS service area.
UE Identifier	O	The identifier of the UE (i.e., GPSI).
Connectivity information	O	List of connectivity information for the UE, e.g. PLMN ID, SSID.
UE location	O	The location information of the UE. The UE location is described in clause 7.3.2.
ECSP identifiers	O	The list of EEC preferred ECSPs that provide the EES.
Tunnel information	O	It includes service provider ID, the endpoint address (e.g. IP address) of the tunnel server associated with application(s).
NOTE: Only one of AC Profile(s) or Application information shall be provided.

8.3.3.3.3 Service provisioning response p. 72

Table 8.3.3.3.3-1 describes the information elements for service provisioning response from the ECS to the EEC.

Table 8.3.3.3.3-1: Service provisioning response

Information element	Status	Description
Successful response	O	Indicates that the service provisioning request was successful.
> List of EDN configuration information	M	List of EDN configuration information as defined in Table 8.3.3.3.3-2.
Failure response	O	Indicates that the service provisioning request failed.
> Cause	O	Indicates the cause of service provisioning request failure.
Redirect	O	Indicates redirection to (an)other ECS(s).
> ECS(s) information	M	Endpoint address of ECS(s) to which the UE is redirected for service provisioning.
> DNN	O	DNN required for establishing PDU Session to the redirected ECS.
> S-NSSAI	O	S-NSSAI required for establishing PDU Session to the redirected ECS.

Table 8.3.3.3.3-2: EDN configuration information

Information element	Status	Description
EDN connection information (NOTE 1)	M	Information required by the UE to establish connection with the EDN.
> DNN/APN	M	Data Network Name/Access Point Name
> S-NSSAI	O	Network Slice information
> EDN Topological Service Area	O	The EDN serves UEs that are connected to the Core Network from one of the cells included in this service area. See possible formats in Table 8.2.7-1.
List of EESs	M	List of EESs of the EDN.
> EESID	M	The identifier of the EES
> EES Endpoint	M	The endpoint address (e.g. URI, IP address) of the EES
> EAS information (NOTE 2)	O	EAS registration and associated bundle information.
>> EASID	M	An EASID registered or expected to be registered with the EES.
>> List of EAS bundle information	O	List of EAS bundles to which the EAS belongs.
>>> Bundle ID (NOTE 3)	O	Bundle ID as described in clause 7.2.10.
>>> List of EASIDs (NOTE 3)	O	A list of the EASIDs of the EASs in the bundle.
> Application Group ID list (NOTE 5)	O	List of Application Group IDs associated with EAS.
> Instantiable EAS information	O	The EAS instantiation status per EASID (e.g. instantiated, instantiable but not be instantiated yet).
>> Instantiation criteria (NOTE 4)	O	The criteria upon which EAS can be instantiated (e.g. based on specific date and time).
> ECSP ID	O	The identifier of the ECSP that provides the EES.
> EES Topological Service Area	O	The EES serves UEs that are connected to the Core Network from one of the cells included in this service area. EECs in UEs that are located outside this area shall not be served. See possible formats in Table 8.2.7-1.
> EES Geographical Service Area	O	The area being served by the EES in Geographical values (as specified in clause 7.3.3.3)
> List of EES DNAI(s)	O	DNAI(s) associated with the EES/EAS. This IE is used as Potential Locations of Applications in clause 5.6.7 of TS 23.501.
> EES Service continuity support	O	Indicates if the EES supports service continuity or not. This IE also indicates which ACR scenarios are supported by the EES.
> EEC registration configuration	M	Indicates whether the EEC is required to register on the EES to use edge services or not.
> Security Credential	O	Indicates the security credential sent by the ECS. The security credential is used by EEC to communicate with the EES as specified in clause 6.3 of TS 33.558.
Lifetime	O	Time duration for which the EDN configuration information is valid and supposed to be cached in the EEC.
NOTE 1: If the UE is provisioned or pre-configured with URSP rules by the HPLMN or serving SNPN, the UE handles the precedence between EDN connection info and URSP rules as defined in clause 6.1.2.2.1 of TS 23.503. EDN connection info is considered to be part of UE Local Configurations. NOTE 2: EAS information is limited to the EEC requested applications. If no AC profiles were present in the service provisioning request, the EAS information is subject to the ECSP policy (e.g. no EAS information or a subset of EAS information related to the EES). NOTE 3: At least one of the IEs shall be present if EAS bundle information is provided. NOTE 4: "Instantiation criteria" IE shall be present only when the value of "Instantiable EAS information" IE is "instantiable but not be instantiated yet". NOTE 5: "Application Group ID list" IE shall be present when "Application Group profile" is included for "AC profile" in service provisioning request as specified in clause 8.3.3.3.2.

8.3.3.3.4 Service provisioning subscription request p. 74

Table 8.3.3.3.4-1 describes the information elements for service provisioning subscription request from the EEC to the ECS.

Table 8.3.3.3.4-1: Service provisioning subscription request

Information element	Status	Description
EECID	M	Unique identifier of the EEC.
Security credentials	M	Security credentials resulting from a successful authorization for the edge computing service.
Notification Target Address (NOTE 1, NOTE 2)	O	The Notification Target Address (e.g. URL) where the notifications destined for the EEC should be sent to.
AC profile(s)	O	Information about services the EEC wants to connect to, as described in Table 8.2.2-1.
EEC Service Continuity Support	O	Indicates if the EEC supports service continuity or not. The IE also indicates which ACR scenarios are supported by the EEC.
UE Identifier	O	The identifier of the UE (i.e., GPSI).
Connectivity information	O	List of connectivity information for the UE, e.g. PLMN ID, SSID.
Proposed expiration time	O	Proposed expiration time for the subscription.
ECSP identifiers	O	The list of EEC preferred ECSPs that provide the EES.
EEC Triggering request (NOTE 2)	O	Indicates that EEC Triggering is requested.
Port ID for EEC Triggering (NOTE 3)	O	Port ID used for the EEC Triggering.
NOTE 1: When SEAL NMS is used this IE is same as Callback URL in SEAL notification management service. NOTE 2: One of them may be provided. NOTE 3: This IE may be provided if the EEC Triggering request is included in the Service provisioning subscription request.

8.3.3.3.5 Service provisioning subscription response p. 74

Table 8.3.3.3.5-1 describes the information elements for service provisioning subscription response from the ECS to the EEC.

Table 8.3.3.3.5-1: Service provisioning subscription response

Information element	Status	Description
Successful response	O	Indicates that the subscription request was successful.
> Subscription ID	M	Subscription identifier corresponding to the subscription.
> Expiration time	O	Indicates the expiration time of the subscription. To maintain an active subscription, a subscription update is required before the expiration time.
Failure response	O	Indicates that the subscription request failed.
> Cause	O	Indicates the cause of subscription request failure

8.3.3.3.6 Service provisioning notification p. 74

Table 8.3.3.3.6-1 describes the information elements for service provisioning notification from the ECS to the EEC.

Table 8.3.3.3.6-1: Service provisioning notification

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription stored in the ECS for the request
List of EDN configuration information (NOTE)	M	List of EDN configuration information as defined in Table 8.3.3.3.3-2.
Redirect (NOTE)	O	Indicates redirection to (an)other ECS(s).
> ECS(s) information	M	Endpoint address of ECS(s) to which the UE is redirected for service provisioning.
> DNN	O	DNN required for establishing PDU Session to the redirected ECS.
> S-NSSAI	O	S-NSSAI required for establishing PDU Session to the redirected ECS.
NOTE: One of the IEs shall be present.

8.3.3.3.7 Service provisioning subscription update request p. 75

Table 8.3.3.3.7-1 describes the information elements for service provisioning subscription update request from the EEC to the ECS.

Table 8.3.3.3.7-1: Service provisioning subscription update request

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription to be updated
Security credentials	M	Security credentials resulting from a successful authorization for the edge computing service.
Connectivity information	O	List of connectivity information for the UE, e.g. PLMN ID, SSID.
Proposed expiration time	O	Proposed expiration time for the subscription
AC profile(s)	O	Information about services the EEC wants to connect to, as described in Table 8.2.2-1.
EEC Service Continuity Support	O	Indicates if the EEC supports service continuity or not. The IE also indicates which ACR scenarios are supported by the EEC.

8.3.3.3.8 Service provisioning subscription update response p. 75

Table 8.3.3.3.8-1 describes the information elements for service provisioning subscription update response from the ECS to the EEC.

Table 8.3.3.3.8-1: Service provisioning subscription update response

Information element	Status	Description
Successful response	O	Indicates that the subscription update request was successful.
> Expiration time	O	Indicates the expiration time of the updated subscription. To maintain an active subscription, a subscription update is required before the expiration time.
Failure response	O	Indicates that the subscription update request failed.
> Cause	O	Indicates the cause of subscription update request failure

8.3.3.3.9 Service provisioning unsubscribe request p. 76

Table 8.3.3.3.9-1 describes the information elements for service provisioning unsubscribe request from the EEC to the ECS.

Table 8.3.3.3.9-1: Service provisioning unsubscribe request

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription stored in the ECS
Security credentials	M	Security credentials of the EEC

8.3.3.3.10 Service provisioning unsubscribe response p. 76

Table 8.3.3.3.10-1 describes the information elements for service provisioning unsubscribe response from the ECS to the EEC.

Table 8.3.3.3.10-1: Service provisioning unsubscribe response

Information element	Status	Description
Successful response	O	Indicates that the unsubscribe request was successful.
Failure response	O	Indicates that the unsubscribe request failed.
> Cause	O	Indicates the cause of unsubscribe request failure