Content for  TS 23.558  Word version:  19.0.0

8.14.3.1  General  p. 221

8.14.3.2  AC registration request  p. 221

Information element	Status	Description
AC profile	M	AC profile of the AC sending the registration request.
Security credentials	M	Security credentials of the AC sending the registration request.
List of EAS characteristics	O	List of EAS characteristics as described in EAS discovery filters (see Table 8.5.3.2-2).
List of requested EEC services	O	One or more EEC services requested by the AC e.g., EAS discovery, ACR.
List of ECS information	O	One or more ECS configuration information.

8.14.3.3  AC registration response  p. 221

Information element	Status	Description
Successful response	O	Indicates that the registration request was successful.
> Registration ID	M	Identifier of the AC registration.
> List of allowed EEC services	M	List of all the EEC services AC is authorized to use.
> 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.
Failure response	O	Indicates that the registration request failed.
> Cause	M	Provides the cause for registration request failure.

8.14.3.4  AC registration update request  p. 221

Information element	Status	Description
Registration ID	M	AC registration identifier provided by the EEC during AC registration.
Security credentials	M	Security credentials of the AC sending the registration update request.
AC profile	O	AC profile of the AC sending the registration update request.
List of EAS characteristics	O	List of EAS characteristics as described in EAS discovery filters (see Table 8.5.3.2-2).
List of requested EEC services	O	One or more EEC services requested by the AC e.g., EAS discovery, ACR.
List of ECS information	O	One or more ECS configuration information.

8.14.3.5  AC registration update response  p. 222

Information element	Status	Description
Successful response	O	Indicates that the registration request was successful.
> List of allowed EEC services	M	List of all the EEC services AC is authorized to use.
> 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.
Failure response	O	Indicates that the registration request failed.
> Cause	M	Provides the cause for registration request failure.

8.14.3.6  AC deregistration request  p. 222

Information element	Status	Description
Registration ID	M	AC registration identifier provided by the EEC during AC registration.
Security credentials	M	Security credentials of the AC sending the deregistration request.

8.14.3.7  AC deregistration response  p. 222

Information element	Status	Description
Successful response	O	Indicates that the deregistration request was successful.
Failure response	O	Indicates that the deregistration request failed.
> Cause	M	Provides the cause for deregistration request failure.

8.14.3.8  EAS discovery request  p. 223

Information element	Status	Description
AC profile	M	AC profile of the AC sending the registration request.
Security credentials	M	Security credentials of the AC.
List of EAS characteristics	O	List of EAS characteristics as described in EAS discovery filters (see Table 8.5.3.2-2).

8.14.3.9  EAS discovery response  p. 223

Information element	Status	Description
Successful response	O	Indicates that the EAS discovery request was successful.
> Discovered EAS list	O	List of discovered EAS(s). Each element includes the information described below.
>> EAS profile	M	Profile of the EAS. Each element is described in clause 8.2.4.
>> Lifetime	O	Time interval or duration during which the information elements in the EAS profile is valid and supposed to be cached in the AC (e.g. time-to-live value for an EAS Endpoint).
Failure response	O	Indicates that the EAS discovery request failed.
> Cause	O	Indicates the cause of EAS discovery request failure.

8.14.3.10  ACR trigger request  p. 223

Information element	Status	Description
AC profile	M	AC profile for EEC to determine the target EAS.
Security credentials	M	Security credentials of the AC.
Requested ACR action	M	One of ACR detection or ACR initiation request actions.
S-EAS information	M	ID of the EAS to which the ACR request relates.
T-EAS information (NOTE)	O	AC provided target EAS information.
NOTE: This IE may be included if the request is to initiate the ACR.

8.14.3.11  ACR trigger response  p. 223

Information element	Status	Description
Successful response	O	Indicates that the ACR request was successful and EEC is processing the requested ACR operation.
Failure response	O	Indicates that the ACR request failed.
> Cause	O	Indicates the cause of ACR request failure.

8.14.3.12  EEC services subscription request  p. 224

Information element	Status	Description
AC profile	M	AC profile of the AC requesting subscription.
Security credentials	M	Security credentials of the AC.
Notification details	M	Details on how the EEC can notify the AC.
Required EEC services	M	EEC handled services required by the AC.
> EAS discovery	O	Indicates that AC requires EEC to handle EAS discovery.
>> List of EAS characteristics	O	List of EAS characteristics as described in EAS discovery filters (see Table 8.5.3.2-2).
> EAS dynamic information	O	Indicates that the AC requires EAS dynamic information subscription.
>> List of EAS dynamic information filters	M	List of EAS dynamic information filters as described in Table 8.5.3.4-2.
> ACR	O	Indicates that the AC requires ACR related services for the following EASs.
>> List of S-EAS information	M	S-EAS information corresponding to the ACR operation.
>>> EASID	M	Identifier of the S-EAS to which the subscription relates.
>>> EAS endpoint	M	Endpoint of the S-EAS to which the subscription relates.
>>> ACR operation	O	Indicates if AC requires ACR monitoring or EEC managed ACR corresponding to each S-EAS.
>>> CAS information	O	AC provided target CAS information.

8.14.3.13  EEC services subscription response  p. 224

Information element	Status	Description
Successful response	O	Indicates that the EEC services 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.
> Confirmed EEC services	M	List of services EEC confirms to handle.
>> EAS discovery	O	Indicates that the EEC will handle EAS discovery.
>> EAS dynamic information	O	Indicates that the EEC will handle EAS dynamic information subscription.
>> ACR	O	Indicates that the EEC will handle ACR.
>>> List of S-EAS information	M	Information of the S-EASs EEC will handle.
>>>> EASID	M	Identifier of the S-EAS to which the subscription relates.
>>>> EAS endpoint	M	Endpoint of the S-EAS to which the subscription relates.
Failure response	O	Indicates that the subscription request failed.
> Cause	O	Indicates the cause of subscription request failure.

8.14.3.14  EEC services notification  p. 224

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the notification.
Notification details	M	Information related to the notification.
> EAS discovery	O	Indicates that the notification relates to EAS discovery.
>> List of EAS profiles	M	EAS profiles associated with the notification. Each element is described in clause 8.2.4.
>>> Lifetime	O	Time interval or duration during which the information in the EAS profile is valid and supposed to be cached in the AC (e.g. time-to-live value for an EAS Endpoint).
> EAS dynamic information	O	Indicates that the notification relates to EAS dynamic information subscription.
>> List of EAS profile	M	EAS profiles associated with the notification. Each element is described in clause 8.2.4.
>>> Lifetime	O	Time interval or duration during which the information in the EAS profile is valid and supposed to be cached in the AC (e.g. time-to-live value for an EAS Endpoint).
> ACR	O	Indicates that the notification relates to ACR.
>> List of S-EAS information	M	ACR operation information and information of the EAS to which the notification relates.
>>> EASID	M	Identifier of the S-EAS to which the subscription relates.
>>> EAS endpoint	M	Endpoint of the S-EAS to which the subscription relates.
>>> ACR detection	O	Indicates that the EEC detected a need for ACR.
>>> ACR decision	O	EEC's decision information related to an ACR detection.
>>> ACR execution status	O	Indicates the status of ACR execution.
>>>> Status	M	ACR status such as initiated, in-progress, complete.
>>>> T-EAS information	O	Information of the T-EAS corresponding to the S-EAS.

8.14.3.15  EEC services subscription update request  p. 225

Information element	Status	Description
Subscription ID	M	Subscription identifier corresponding to the update request.
Security credentials	M	Security credentials of the AC.
Notification details	O	Details on how the EEC can notify the AC.
Required EEC services	O	EEC handled services required by the AC.
> EAS discovery	O	Indicates that AC requires EEC to handle EAS discovery.
>> List of EAS discovery filters	M	List of EAS discovery filters as described in Table 8.5.3.2-2.
>>> Preferred ECSP list	O	Preferred ECSP list corresponding to each set of EAS discovery filters.
> EAS dynamic information	O	Indicates that the AC requires EAS dynamic information subscription.
>> List of EAS dynamic information filters	M	List of EAS dynamic information filters as described in Table 8.5.3.4-2.
> ACR	O	Indicates that the AC requires ACR related services for the following EASs.
>> List of S-EAS information	M	S-EAS information corresponding to the ACR operation.
>>> EASID	M	Identifier of the S-EAS to which the subscription relates.
>>> EAS endpoint	M	Endpoint of the S-EAS to which the subscription relates.
>>> ACR operation	O	Indicates if AC requires ACR monitoring or EEC managed ACR corresponding to each S-EAS.
>>> CAS information	O	AC provided target CAS information.

8.14.3.16  EEC services subscription update response  p. 226

Information element	Status	Description
Successful response	O	Indicates that the EEC services subscription update request was successful.
> Expiration time	O	Indicates the expiration time of the subscription. To maintain an active subscription, a subscription update is required before the expiration time.
> Confirmed EEC services	M	List of services EEC confirms to handle.
>> EAS discovery	O	Indicates that the EEC will handle EAS discovery.
>> EAS dynamic information	O	Indicates that the EEC will handle EAS dynamic information subscription.
>> ACR	O	Indicates that the EEC will handle ACR.
>>> List of S-EAS information	M	Information of the S-EASs EEC will handle.
>>> EASID	M	Identifier of the S-EAS to which the subscription relates.
>>> EAS endpoint	M	Endpoint of the S-EAS to which the subscription relates.
Failure response	O	Indicates that the subscription update request failed.
> Cause	O	Indicates the cause of subscription update request failure.

8.14.3.17  EEC services unsubscribe request  p. 226

Information element	Status	Description
Subscription ID	M	EEC services subscription identifier provided by the EEC during subscription.
Security credentials	M	Security credentials of the AC sending the EEC services unsubscribe request.

8.14.3.18  EEC services unsubscribe response  p. 227

Information element	Status	Description
Successful response	O	Indicates that the EEC services unsubscribe request was successful.
Failure response	O	Indicates that the EEC services unsubscribe request failed.
> Cause	M	Provides the cause for EEC services unsubscribe request failure.

8.14.3.19  UE ID request  p. 227

Information element	Status	Description
EAS ID list	M	List of EAS ID(s) the AC requires to know the associated AF-specific UEID(s) for.
Security credentials	M	Security credentials of the AC sending the UE ID request.

8.14.3.20  UE ID response  p. 227

Information element	Status	Description
Successful response	O	Indicates that the UE ID request was successful.
> UE ID list	M	List of all the Edge UE IDs or AF-specific UE IDs the AC asked for in the request and is authorized to use as per EAS ID(s).
>> UE ID	M	Edge UE ID or AF-specific UE ID.
>> UE ID type	M	Indication whether the UE ID is CN assigned AF-specific UE ID or Edge UE ID.
>> EAS ID	M	Associated EAS ID.
Failure response	O	Indicates that the UE ID request failed.
> Cause	M	Provides the cause for UE ID request failure.

8.14.4.1  General  p. 228

API Name	API Operations	Operation Semantics	Consumer(s)
Eeec_ACRegistration	Request	Request/ Response	AC
	Update
	Deregister
Eeec_EASDiscovery	Request	Request/ Response	AC
Eeec_ACRTrigger	Request	Request/ Response	AC
Eeec_Services	Subscribe	Subscribe/ Notify	AC
	Notify
	UpdateSubscription
	Unsubscribe
Eeec_UEId	Request	Request/ Response	AC

8.14.4.2  Eeec_ACRegistration API  p. 228

8.14.4.3  Eeec_EASDiscovery API  p. 229

8.14.4.4  Eeec_ACRTrigger API  p. 229

8.14.4.5  Eeec_Services API  p. 229

8.14.4.6  Eeec_UEId API  p. 230