Requestor Identifier

M

Unique identifier of the requestor (i.e. EECID or EASID).

Security credentials

M

Security credentials resulting from a successful authorization for the edge computing service.

EASID

O

Identifier of the EAS

UE identifier

M

The identifier of the UE (i.e. GPSI).

Predicted/Expected UE location or Expected AC Geographical Service Area (NOTE 8)

O

The predicted/expected location information of the UE. The UE location is described in clause 7.3.2 or the predicted/expected Expected AC Geographical Service Area as described in clause 7.3.3.3

ACID

O

The identifier of the AC.

ACR action (NOTE 3)

M

Indicates the ACR action (ACR initiation or ACR determination)

ACR initiation data (NOTE 2)

O

ACR initiation IEs to be included in an ACR request message when ACR action indicates it is ACR initiation request.

> T-EAS Endpoint

M

Endpoint information (e.g. URI, FQDN, IP 3-tuple) of the T-EAS.

> Previous T-EAS Endpoint (NOTE 7)

O

Endpoint information (e.g. URI, FQDN, IP 3-tuple) of the T-EAS of the previous ACR.

> DNAI of the T-EAS

O

DNAI information associated with the T-EAS.

> N6 Traffic Routing requirements

O

The N6 traffic routing information and/or routing profile ID corresponding to the T-EAS DNAI.

> EAS notification indication

M

Indicates whether to notify the EAS about the need of ACR.

> Previous EAS notification indication (NOTE 7)

O

Indicates whether to notify the EAS about the cancellation of a previous ACR.

> S-EAS endpoint (NOTE 1)

O

Endpoint information of the S-EAS

> Prediction expiration time (NOTE 9)

O

The estimated time the UE may reach the Predicted/Expected UE location or EAS service area at the latest

> EEC context relocation details

O

Information required for EEC context relocation using the EEC context push or EEC context pull mechanisms.

>> EEC Context ID (NOTE 5)

O

Identifier of the EEC Context

>> S-EES ID (NOTE 5)

O

Identifier of the EES that provided EEC context ID.

>> S-EES endpoint (NOTE 5)

O

The endpoint address (e.g. URI, IP address) of the EES that provided EEC context ID.

>> T-EES ID (NOTE 6)

O

Identifier of the T-EES.

>> T-EES endpoint (NOTE 6)

O

The endpoint address (e.g. URI, IP address) of the T-EES.

ACR determination data (NOTE 2)

O

ACR determination IEs to be included in an ACR request message when ACR action indicates it is ACR determination request.

> S-EAS endpoint

M

Endpoint information of the S-EAS

NOTE 1: This IE shall be present if the EAS notification indication or previous EAS notification indication indicates that the EAS needs to be informed.

NOTE 2: Either ACR initiation or ACR determination shall be included corresponding to the ACR action.

NOTE 3: This IE shall indicate ACR determination if the request originates from the S‑EAS.

NOTE 4: Void.

NOTE 5: This IE may be present only if the request originates from the EEC towards the T-EES.

NOTE 6: This IE may be present only if the request originates from the EEC towards the S-EES.

NOTE 7: These IEs shall be present when the EEC re-sends the ACR request as described in clause 8.8.1.3 to indicate a previous ACR is to be cancelled.

NOTE 8: This IE may be present if the ACR procedure is for service continuity planning.

NOTE 9: This IE may be included when the ACR is decided and executed for service continuity planning for a predicted/expected UE location.

Successful response (NOTE)

O

Indicates that the ACR request was successful.

Failure response (NOTE)

O

Indicates that the ACR request failed.

> Cause

O

Indicates the cause of ACR request failure

NOTE: One of these IEs shall be present in the message.

EESID

M

Unique identifier of the EES.

Security credentials

M

Security credentials resulting from a successful authorization for the edge computing service.

EASID

M

The EASID.

Target DNAI

O

The target DNAI information which can be associated with potential T-EES(s) and/or T-EAS(s).

UE Identifier

O

The identifier of the UE (i.e. GPSI or identity token)

UE location

O

The location information of the UE. The UE location is described in clause 7.3.2.

EECID

M

Unique identifier of the EEC.

UE Identifier

O

The identifier of the UE (i.e. GPSI or identity token)

Security credentials

M

Security credentials resulting from a successful authorization for the edge computing service.

EASID(s)

M

The identifier of the EAS(s)

ACID(s)

O

(NOTE)

The identifier of the AC(s)

Event ID(s)

M

Event ID:

– Target information notification

– ACR complete

Notification target address

M

Notification target address

Proposed expiration time

O

Proposed expiration time for the subscription

NOTE: If ACID(s) IE is not included, it implies that the subscription corresponds to all ACs that can be served by the EAS(s) included the this message.

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

Subscription ID

M

Subscription identifier corresponding to the subscription stored in the EES for the request

EASID

M

The identifier of the EAS

ACID

O

The identifier of the AC corresponding to the Selected target EAS

Event ID

M

Either Target information notification or ACR complete

Target information (NOTE 1)

O

Details of the selected T-EAS and the T-EES.

> T-EAS information

M

Details of the selected T-EAS as described in ‘Discovered EAS’ IE of Table 8.5.3.3-1.

> T-EES information (NOTE 4)

O

Details of the selected T-EES as described in ‘EDN configuration information’ IE of Table 8.3.3.3.3-1.

ACR complete event information (NOTE 2)

O

Details of a completed ACR and its result.

Result of ACR (NOTE 2)

M

Indicates whether the ACR is successful or failure

> T-EAS endpoint

M

Endpoint address of the T-EAS to which an ACR has been performed.

EEC Context Relocation status (NOTE 5)

O

Indicates whether the EEC context relocation was successful or not.

> Registration Id (see NOTE 6)

O

Identifier of the registration for the EEC.

> Expiration Time (see NOTE 6)

O

Indicates the expiration time of the registration.

Cause information (see NOTE 3)

O

Indicates the cause information for the failure

NOTE 1: This IE shall be included when Event ID indicates ‘Target information notification’ event

NOTE 2: This IE shall be included when Event ID indicates ‘ACR complete’ event

NOTE 3: This IE shall be included when the Result of ACR indicates failure.

NOTE 4: This IE shall be included if the selected T-EES is different from the S-EES. Otherwise, it may be skipped.

NOTE 5: This IE shall be included when Event ID indicates ‘ACR complete’ event and EEC context relocation was attempted.

NOTE 6: This IE shall be included if S-EES has received it in EEC Context Push response.

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.

EASID(s)

O

The identifier of the EAS(s)

Event ID(s)

O

Event ID:

– Target information notification

– ACR complete

Notification target address

O

Notification target address

Proposed expiration time

O

Proposed expiration time for the subscription

Successful response

O

Indicates that the subscription 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.

Failure response

O

Indicates that the subscription request failed.

> Cause

O

Indicates the cause of subscription request failure

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.

Successful response

O

Indicates that the subscription 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.

Failure response

O

Indicates that the subscription request failed.

> Cause

O

Indicates the cause of subscription request failure

UE identifier

M

Identifies the UE for which ACR is requested

EAS characteristics for ACR

M

Set of characteristics to determine required Edge Application Servers, as detailed in Table 8.5.3.2-2.

Security credentials

M

Security credentials of the source Edge Application Server

Address for Application Context storage

O

The address information from where the Application Context can be accessed for ACT.

Successful response

O

Indicates that the ACR request was successful.

> Address for Application Context storage (NOTE)

O

The address information from where the Application Context can be accessed for ACT.

Failure response

O

Indicates that the EELManagedACR request failed.

> Cause

O

Indicates the cause of request failure

NOTE: This IE is included if "Address for Application Context storage" IE as specified in Table 8.8.4.15-1 is not included in ACR service request.

UE ID

M

The identifier of the UE.

Security credentials

M

Security credentials.

Selected EAS ID

M

Selected EAS identifier.

ACID

O

The identifier of the AC

Selected EAS Endpoint

M

Endpoint of the selected EAS.

Predicted/Expected UE location or Expected AC Geographical Service Area

O

The predicted/expected location information of the UE. The UE location is described in clause 7.3.2 or the predicted/expected Expected AC Geographical Service Area as described in clause 7.3.3.3

Successful response (NOTE)

O

Indicates that the request was successful.

Failure response (NOTE)

O

Indicates that the request failed.

> Cause

O

Indicates the failure cause.

NOTE: One of these IEs shall be present in the message.

EASID

M

The identifier of the EAS providing the update

Security credentials

M

Security credentials of the EAS

ACID

O

The identifier of the AC

ACT result (NOTE 1, NOTE 3)

O

Indicates whether the ACT was successful or failed.

> UEID

M

The identifier of the UE

> EAS endpoint

M

Endpoint address of the other EAS to or from which the ACT has been performed.

List of EDGE-3 subscription ID(s) (NOTE 2, NOTE 3)

O

A list of the EDGE-3 subscription identifiers.

Notification Target Address for EDGE-3 subscription (NOTE 2, NOTE 3)

O

Notification Target Address of the EAS where the notification is to be sent by the EES for EDGE-3 subscription.

NOTE 1: This IE may be included by the S-EAS and T-EAS. In case of EELManagedACR, this IE is not included by the T-EAS.

NOTE 2: This IE may be included only by the T-EAS.

NOTE 3: At least one of these IEs shall be present in the message.

Successful response (NOTE)

O

Indicates that the request was successful.

> EDGE-3 subscription initialization result

O

The IE indicates if the EDGE-3 subscriptions were initialized successfully or if initialization failed.

> List of updated EDGE-3 subscription ID(s)

O

If the EDGE-3 subscription initialization result is successful, the EES provides the updated subscription identifier(s). The absence of an identifier implies no change for the subscription identifier.

Failure response (NOTE)

O

Indicates that the request failed

> Cause

O

Indicates the cause of request failure

NOTE: One of these IEs shall be present in the message.

EASID

M

The identifier of the EAS providing the update

Security credentials

M

Security credentials of the EAS

Notification Target Address

M

Notification Target Address of the EAS where the notification is to be sent by the EES

Successful response

O

Indicates that the request was successful.

> Subscription ID

O

Identifier of the subscription

Failure response

O

Indicates that the request failed

> Cause

O

Indicates the cause of request failure

Subscription ID

M

Subscription identifier corresponding to the subscription stored in the EES for the request

ACT status

M

Status of the ACT between S-EES and the T-EES

EES ID

M

Unique identifier of the requesting S-EES.

EECID (NOTE 1)

M

Unique identifier of the EEC.

ACID (NOTE 1)

M

The identifier of the AC.

S-EAS Endpoint (NOTE 1)

M

Endpoint information (e.g. URI, FQDN, IP 3-tuple) of the S-EAS.

T-EAS Endpoint (NOTE 1)

M

Endpoint information (e.g. URI, FQDN, IP 3-tuple) of the T-EAS.

ACR parameters

M

ACR parameters

> Prediction expiration time

O

The estimated time the UE may reach the Predicted/Expected UE location or EAS service area at the latest

NOTE 1: These IEs are used to identify the ACR.

Successful response (NOTE)

O

Indicates that the ACR parameter information was successful.

Failure response (NOTE)

O

Indicates that the ACR parameter information failed.

> Cause

O

Indicates the cause of ACR parameter information failure

NOTE: One of these IEs shall be present in the message.