Content for  TS 23.558  Word version:  19.4.0

8.17.3.1  General  p. 267

8.17.3.2  ECS registration request  p. 267

Information element	Status	Description
ECS profile	M	Profile of the ECS as specified in clause 8.2.12.
Security credentials	M	Security credentials of the ECS.
Proposed expiration time	O	Proposed expiration time for the registration.

8.17.3.3  ECS registration response  p. 268

Information element	Status	Description
Successful response	O	Indicates that the registration request was successful.
> Registration ID	M	Identifier of the registration.
> Expiration time	O	Indicates the expiration time of the registration. To maintain an active registration status, a registration update is required before the expiration time. If the Expiration time IE is not included, it indicates that the registration never expires.
Failure response	O	Indicates that the registration request failed.
> Cause	O	Indicates the cause of registration request failure.

8.17.3.4  ECS registration update request  p. 268

Information element	Status	Description
Updated ECS profile	O	Profile of the ECS as specified in clause 8.2.12.
Security credentials	M	Security credentials of the ECS.
Registration ID	M	Identifier of the registration to be updated.
Proposed expiration time	O	Proposed expiration time for the registration.

8.17.3.5  ECS registration update response  p. 268

Information element	Status	Description
Successful response	O	Indicates that the registration update request was successful.
> Expiration time	O	Indicates the expiration time of the updated registration. To maintain an active registration status, a registration update is required before the expiration time. If the Expiration time IE is not included, it indicates that the updated registration never expires.
Failure response	O	Indicates that the registration update request failed.
> Cause	O	Indicates the cause of registration update request failure.

8.17.3.6  ECS de-registration request  p. 268

Information element	Status	Description
Registration ID	M	Identifier of the registration.
Security credentials	M	Security credentials of the EES.

8.17.3.7  ECS de-registration response  p. 269

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

8.17.3.8  ECS discovery request  p. 269

Information element	Status	Description
ECS address	M	Endpoint information of ECS (e.g. URI, FQDN, IP address).
Security credentials	M	Security credentials of the ECS.
Federation information	O	List of information for different federation agreements related to the ECS.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
AC Profile(s)	O	Filter information about required services as described in Table 8.2.2-1.
Application Group ID	O	Application group identifier as defined in clause 7.2.11.
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location	O	Location of the UE for which the services are required.

8.17.3.9  ECS discovery response  p. 269

Information element	Status	Description
Successful response	O	Indicates that the ECS discovery request was successful.
> List of ECS profiles	M	List of ECS profiles as described in clause 8.2.12.
> Lifetime	O	Time duration for which the ECS profiles are valid and supposed to be cached by the ECS.
Failure response	O	Indicates that the ECS discovery request failed.
> Cause	O	Indicates the cause of ECS discovery request failure.

8.17.3.10  ECS discovery subscription request  p. 269

Information element	Status	Description
ECS address	M	Endpoint information of ECS (e.g. URI, FQDN, IP address).
Security credentials	M	Security credentials of the ECS.
Notification Target Address	O	The Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
Federation information	O	List of information for different federation agreements related to the ECS.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
AC Profile(s)	O	Filter information about required services as described in Table 8.2.2-1.
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location	O	Location of the UE for which the services are required.
Proposed expiration time	O	Proposed expiration time for the subscription.

8.17.3.11  ECS discovery subscription response  p. 270

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.

8.17.3.12  ECS discovery notification  p. 270

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription stored in the ECS-ER.
List of ECS profiles	M	List of ECS profiles as described in clause 8.2.12.
Lifetime	O	Time duration for which the ECS profiles are valid and supposed to be cached by the ECS.

8.17.3.13  ECS discovery subscription update request  p. 270

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription to be updated.
Security credentials	M	Security credentials of the ECS.
Notification Target Address	O	The Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
Federation information	O	List of information for different federation agreements related to the ECS.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
AC Profile(s)	O	Filter information about required services as described in Table 8.2.2-1.
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location	O	Location of the UE for which the services are required.
Proposed expiration time	O	Proposed expiration time for the subscription.

8.17.3.14  ECS discovery subscription update response  p. 271

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.

8.17.3.15  ECS discovery unsubscribe request  p. 271

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription to be unsubscribed.
Security credentials	M	Security credentials of the ECS.

8.17.3.16  ECS discovery unsubscribe response  p. 271

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.

8.17.3.17  Service provisioning information retrieval request  p. 272

Information element	Status	Description
ECS address	M	Endpoint information of ECS (e.g. URI, FQDN, IP address).
Security credentials	M	Security credentials of the ECS.
Federation information	O	List of information for different federation agreements related to the ECS.
> Federation identifier	O	Identifier of the federation.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
Application information	O	List of information about services the EEC wants to connect to, including the option to provide application group profile information.
> AC Profile	M	Filter information about required services as described in Table 8.2.2-1.
> Application group profile (NOTE)	O	Application group profile associated with the AC Profile, as defined in Table 8.2.11-1
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location (NOTE)	O	Location of the UE for which the services are required.
NOTE: If application group profile IE is present, the expected group geographic service area IE present in the application group profile is preferentially used. If there is no ECS satisfied the expected group geographic service area, then the UE location is considered.

8.17.3.18  Service provisioning information retrieval response  p. 272

Information element	Status	Description
Successful response	O	Indicates that the Service provisioning information retrieval request was successful.
> List of EDN configuration information	M	List of EDN configuration information as defined in Table 8.3.3.3.3-2.
> Lifetime	O	Time duration for which the EDN configuration information is valid and supposed to be cached by the ECS.
Failure response	O	Indicates that the Service provisioning information retrieval request failed.
> Cause	O	Indicates the cause of Service provisioning information retrieval request failure.

8.17.3.19  Service provisioning information subscription request  p. 273

Information element	Status	Description
ECS address	M	Endpoint information of ECS (e.g. URI, FQDN, IP address).
Security credentials	M	Security credentials of the ECS.
Notification Target Address	O	The Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
Federation information	O	List of information for different federation agreements related to the ECS.
> Federation identifier	O	Identifier of the federation.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
AC Profile(s)	O	Filter information about required services as described in Table 8.2.2-1.
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location	O	Location of the UE for which the services are required.
Proposed expiration time	O	Proposed expiration time for the subscription.

8.17.3.20  Service provisioning information subscription response  p. 273

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.

8.17.3.21  Service provisioning information notification  p. 273

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription stored in the ECS-ER.
List of EDN configuration information	M	List of EDN configuration information as defined in Table 8.3.3.3.3-2.
Lifetime	O	Time duration for which the EDN configuration is valid and supposed to be cached by the ECS.

8.17.3.22  Service provisioning information subscription update request  p. 274

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription to be updated.
Security credentials	M	Security credentials of the ECS.
Notification Target Address	O	The Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
Federation information	O	List of information for different federation agreements related to the ECS.
> Federation identifier	O	Identifier of the federation.
> ECSP identifiers	O	The list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
AC Profile(s)	O	Filter information about required services as described in Table 8.2.2-1.
Connectivity information	O	Connectivity information such as serving PLMN information where the services are required.
UE location	O	Location of the UE for which the services are required.
Proposed expiration time	O	Proposed expiration time for the subscription.

8.17.3.23  Service provisioning information subscription update response  p. 274

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.

8.17.3.24  Service provisioning information unsubscribe request  p. 274

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the subscription to be unsubscribed.
Security credentials	M	Security credentials of the ECS.

8.17.3.25  Service provisioning information unsubscribe response  p. 275

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.