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Content for  TS 23.558  Word version:  19.1.0

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8.17.3  Information flowsp. 251

8.17.3.1  Generalp. 251

Following information flows are specified for support of federation and roaming:
  • ECS registration request and response;
  • ECS registration update request and response;
  • ECS registration de-registration request and response;
  • ECS discovery request and response;
  • ECS discovery subscription request and response;
  • ECS discovery subscription update request and response;
  • ECS discovery unsubscribe request and response;
  • Service provisioning information retrieval request and response;
  • Service provisioning information subscription request and response;
  • Service provisioning information subscription update request and response; and
  • Service provisioning information unsubscribe request and response.
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    8.17.3.2  ECS registration requestp. 251

    Table 8.17.3.2-1 describes the information elements for ECS registration request from the ECS to the ECS-ER.
    Information element Status Description
    ECS profileMProfile of the ECS as specified in clause 8.2.12.
    Security credentialsMSecurity credentials of the ECS.
    Proposed expiration timeOProposed expiration time for the registration.
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    8.17.3.3  ECS registration responsep. 252

    Table 8.17.3.3-1 describes the information elements for ECS registration response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the registration request was successful.
    > Registration IDMIdentifier of the registration.
    > Expiration timeOIndicates 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 responseOIndicates that the registration request failed.
    > CauseOIndicates the cause of registration request failure.
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    8.17.3.4  ECS registration update requestp. 252

    Table 8.17.3.4-1 describes the information elements for ECS registration update request from the ECS to the ECS-ER.
    Information element Status Description
    Updated ECS profileOProfile of the ECS as specified in clause 8.2.12.
    Security credentialsMSecurity credentials of the ECS.
    Registration IDMIdentifier of the registration to be updated.
    Proposed expiration timeOProposed expiration time for the registration.
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    8.17.3.5  ECS registration update responsep. 252

    Table 8.17.3.5-1 describes the information elements for ECS registration update response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the registration update request was successful.
    > Expiration timeOIndicates 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 responseOIndicates that the registration update request failed.
    > CauseOIndicates the cause of registration update request failure.
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    8.17.3.6  ECS de-registration requestp. 252

    Table 8.17.3.6-1 describes the information elements for ECS de-registration request from the ECS to the ECS-ER.
    Information element Status Description
    Registration IDMIdentifier of the registration.
    Security credentialsMSecurity credentials of the EES.
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    8.17.3.7  ECS de-registration responsep. 253

    Table 8.17.3.7-1 describes the information elements for ECS de-registration response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the de-registration request was successful.
    Failure responseOIndicates that the de-registration request failed.
    > CauseOIndicates the cause of de-registration request failure.
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    8.17.3.8  ECS discovery requestp. 253

    Table 8.17.3.8-1 describes the information elements for ECS discovery request; from the ECS to the ECS-ER.
    Information element Status Description
    ECS addressMEndpoint information of ECS (e.g. URI, FQDN, IP address).
    Security credentialsMSecurity credentials of the ECS.
    Federation informationOList of information for different federation agreements related to the ECS.
    > ECSP identifiersOThe 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 informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
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    8.17.3.9  ECS discovery responsep. 253

    Table 8.17.3.9-1 describes the information elements for ECS discovery response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the ECS discovery request was successful.
    > List of ECS profilesMList of ECS profiles as described in clause 8.2.12.
    > LifetimeOTime duration for which the ECS profiles are valid and supposed to be cached by the ECS.
    Failure responseOIndicates that the ECS discovery request failed.
    > CauseOIndicates the cause of ECS discovery request failure.
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    8.17.3.10  ECS discovery subscription requestp. 253

    Table 8.17.3.10-1 describes the information elements for ECS discovery subscription request; from the ECS to the ECS-ER.
    Information element Status Description
    ECS addressMEndpoint information of ECS (e.g. URI, FQDN, IP address).
    Security credentialsMSecurity credentials of the ECS.
    Notification Target AddressOThe Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
    Federation informationOList of information for different federation agreements related to the ECS.
    > ECSP identifiersOThe 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 informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
    Proposed expiration timeOProposed expiration time for the subscription.
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    8.17.3.11  ECS discovery subscription responsep. 254

    Table 8.17.3.11-1 describes the information elements for ECS discovery subscription response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the subscription request was successful.
    > Subscription IDMSubscription identifier corresponding to the subscription.
    > Expiration timeOIndicates the expiration time of the subscription. To maintain an active subscription, a subscription update is required before the expiration time.
    Failure responseOIndicates that the subscription request failed.
    > CauseOIndicates the cause of subscription request failure.
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    8.17.3.12  ECS discovery notificationp. 254

    Table 8.17.3.12-1 describes the information elements for ECS discovery notification request from the ECS-ER to the ECSR.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription stored in the ECS-ER.
    List of ECS profilesMList of ECS profiles as described in clause 8.2.12.
    LifetimeOTime duration for which the ECS profiles are valid and supposed to be cached by the ECS.
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    8.17.3.13  ECS discovery subscription update requestp. 254

    Table 8.17.3.13-1 describes the information elements for ECS discovery subscription update request from the ECS to the ECS-ER.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription to be updated.
    Security credentialsMSecurity credentials of the ECS.
    Notification Target AddressOThe Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
    Federation informationOList of information for different federation agreements related to the ECS.
    > ECSP identifiersOThe 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 informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
    Proposed expiration timeOProposed expiration time for the subscription.
    Up

    8.17.3.14  ECS discovery subscription update responsep. 255

    Table 8.17.3.14-1 describes the information elements for ECS discovery subscription update response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the subscription update request was successful.
    > Expiration timeOIndicates the expiration time of the updated subscription. To maintain an active subscription, a subscription update is required before the expiration time.
    Failure responseOIndicates that the subscription update request failed.
    > CauseOIndicates the cause of subscription update request failure.
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    8.17.3.15  ECS discovery unsubscribe requestp. 255

    Table 8.17.3.15-1 describes the information elements for ECS discovery unsubscribe request from the ECS to the ECS-ER.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription to be unsubscribed.
    Security credentialsMSecurity credentials of the ECS.
    Up

    8.17.3.16  ECS discovery unsubscribe responsep. 255

    Table 8.17.3.16-1 describes the information elements for ECS discovery unsubscribe response from the ECS-ER to the ECS.
    Information element Status Description
    Successful responseOIndicates that the unsubscribe request was successful.
    Failure responseOIndicates that the unsubscribe request failed.
    > CauseOIndicates the cause of unsubscribe request failure.
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    8.17.3.17  Service provisioning information retrieval requestp. 256

    Table 8.17.3.17-1 describes the information elements for Service provisioning information retrieval request from the ECS to a partner ECS.
    Information element Status Description
    ECS addressMEndpoint information of ECS (e.g. URI, FQDN, IP address).
    Security credentialsMSecurity credentials of the ECS.
    Federation informationOList of information for different federation agreements related to the ECS.
    > Federation identifierOIdentifier of the federation.
    > ECSP identifiersOThe list of ECSPs preferred by the ECS. This information is used by the ECS-ER to filter the discovered partner ECS information.
    Application informationOList of information about services the EEC wants to connect to, including the option to provide application group profile information.
    > AC ProfileO Filter information about required services as described in Table 8.2.2-1.
    > Application group profileO Application group profile associated with the AC Profile, as defined in Table 8.2.11-1
    Connectivity informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
    Up

    8.17.3.18  Service provisioning information retrieval responsep. 256

    Table 8.17.3.18-1 describes the information elements for Service provisioning information retrieval response from the partner ECS to the ECS.
    Information element Status Description
    Successful responseOIndicates that the Service provisioning information retrieval request was successful.
    > List of EDN configuration informationM List of EDN configuration information as defined in Table 8.3.3.3.3-2.
    > LifetimeOTime duration for which the EDN configuration information is valid and supposed to be cached by the ECS.
    Failure responseOIndicates that the Service provisioning information retrieval request failed.
    > CauseOIndicates the cause of Service provisioning information retrieval request failure.
    Up

    8.17.3.19  Service provisioning information subscription requestp. 256

    Table 8.17.3.19-1 describes the information elements for Service provisioning information subscription request from the ECS to a partner ECS.
    Information element Status Description
    ECS addressMEndpoint information of ECS (e.g. URI, FQDN, IP address).
    Security credentialsMSecurity credentials of the ECS.
    Notification Target AddressOThe Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
    Federation informationOList of information for different federation agreements related to the ECS.
    > Federation identifierOIdentifier of the federation.
    > ECSP identifiersOThe 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 informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
    Proposed expiration timeOProposed expiration time for the subscription.
    Up

    8.17.3.20  Service provisioning information subscription responsep. 257

    Table 8.17.3.20-1 describes the information elements for Service provisioning information subscription response from the partner ECS to the ECS.
    Information element Status Description
    Successful responseOIndicates that the subscription request was successful.
    > Subscription IDMSubscription identifier corresponding to the subscription.
    > Expiration timeOIndicates the expiration time of the subscription. To maintain an active subscription, a subscription update is required before the expiration time.
    Failure responseOIndicates that the subscription request failed.
    > CauseOIndicates the cause of subscription request failure.
    Up

    8.17.3.21  Service provisioning information notificationp. 257

    Table 8.17.3.21-1 describes the information elements for Service provisioning information notification from the the partner ECS to the ECS.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription stored in the ECS-ER.
    List of EDN configuration informationM List of EDN configuration information as defined in Table 8.3.3.3.3-2.
    LifetimeOTime duration for which the EDN configuration is valid and supposed to be cached by the ECS.
    Up

    8.17.3.22  Service provisioning information subscription update requestp. 257

    Table 8.17.3.22-1 describes the information elements for Service provisioning information subscription update request from the the ECS to a partner ECS.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription to be updated.
    Security credentialsMSecurity credentials of the ECS.
    Notification Target AddressOThe Notification Target Address (e.g. URL) where the notifications destined for the ECS should be sent to.
    Federation informationOList of information for different federation agreements related to the ECS.
    > Federation identifierOIdentifier of the federation.
    > ECSP identifiersOThe 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 informationOConnectivity information such as serving PLMN information where the services are required.
    UE locationOLocation of the UE for which the services are required.
    Proposed expiration timeOProposed expiration time for the subscription.
    Up

    8.17.3.23  Service provisioning information subscription update responsep. 258

    Table 8.17.3.23-1 describes the information elements for Service provisioning information subscription update response from the partner ECS to the ECS.
    Information element Status Description
    Successful responseOIndicates that the subscription update request was successful.
    > Expiration timeOIndicates the expiration time of the updated subscription. To maintain an active subscription, a subscription update is required before the expiration time.
    Failure responseOIndicates that the subscription update request failed.
    > CauseOIndicates the cause of subscription update request failure.
    Up

    8.17.3.24  Service provisioning information unsubscribe requestp. 258

    Table 8.17.3.24-1 describes the information elements for Service provisioning information unsubscribe request from the ECS to a partner ECS.
    Information element Status Description
    Subscription IDMSubscription identifier corresponding to the subscription to be unsubscribed.
    Security credentialsMSecurity credentials of the ECS.
    Up

    8.17.3.25  Service provisioning information unsubscribe responsep. 258

    Table 8.17.3.25-1 describes the information elements for Service provisioning information unsubscribe response from the partner ECS to the ECS
    Information element Status Description
    Successful responseOIndicates that the unsubscribe request was successful.
    Failure responseOIndicates that the unsubscribe request failed.
    > CauseOIndicates the cause of unsubscribe request failure.
    Up

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