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8.18.1 General
This clause describes the procedure for DN energy consumption/efficiency analytics, where the analytics are performed based on data collected from one or more DNs and A-ADRF.
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8.18.2 Procedure
Figure 8.18.2-1 illustrates the procedure for DN energy efficiency analytics enablement solution. Pre-conditions: 1. Data producers (e.g. A-ADRF, EAS, EES) may be pre-configured with data producer profiles (as in Table 8.2.4.8-1) for the data they can provide. ADAES has discovered available data producers and their data producer profiles. Figure 8.8.2.1-1: ADAES support for DN energy analytics 1. The VAL server sends a DN energy analytics request to ADAES to perform analytics on the DN Energy Consumption/Efficiency for one or more DNs/EDNs, Event ID= “DN energy analytics”, for a given DN service area (or subarea) and a given time window. 2. The ADAES authorizes the VAL request. 3. The ADAES requests and receives from the EAS /VAL servers hosted at the serving and target DNs (within the VAL service area), expected application service load and traffic schedules for the ongoing or future sessions within the area. Such data include traffic schedule report for the VAL Server, and this step re-uses the step 3 to 10 of clause 8.8.2.1. 4. The ADAES calculates the expected energy consumption or efficiency based on the received traffic and load data for the given DNN/DNAI based on the request. NOTE: How the collected data are used to calculate energy efficiency metric is up to implementation. 5. The ADAES obtains the corresponding trained ML model based on procedure in 3GPP TS 23.482 clause 8.3.2 and performs analytics to derive the predicted energy consumption at the target area and time horizon. The analytics outputs can be the predicted energy consumption / efficiency for the given DNN/DNAI. 6. The ADAES sends a DN energy analytics response with the energy consumption/efficiency analytics output data to the VAL server. Based on 6, the VAL server can use these analytics as input to trigger pro-actively: - an application server migration to a different edge cloud or to a centralized cloud as a way of reducing the energy consumption for the edge (if consumption is expected to be very high (e.g. higher than a pre-configured threshold)). - an application server offboarding and the instantiation of a new server at the target edge/centralized cloud to minimize energy consumption of the edge platform (taking into account the system wide energy efficiency).
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8.18.3 Information flows
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8.18.3.1 General
The following information flows are specified for DN energy analytics based on clause 8.18.2.
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8.18.3.2 DN energy analytics request
Table 8.18.3.2-1 describes information elements for the DN energy analytics request from the VAL server to the ADAE server. Table 8.8.3.2-1: DN energy analytics request Information element Status Description Analytics Consumer ID M The identifier of the analytics consumer (VAL server, EAS). Analytics ID M The identifier of the analytics event. This ID can be for example “edge performance analytics”. Analytics type M The type of analytics for the event, e.g. statistics or predictions. DNN/DNAI M DNN or DNAIs information for which the subscription applies. Energy Efficiency/Consumption metrics O The formula and necessary metrics for calculating the EE based on load and traffic information per DN. Target data producer profile criteria O Characteristics of the data producers to be used. Preferred confidence level O The level of accuracy for the analytics service (in case of prediction). Area of Interest O The geographical or service area for which the subscription request applies. Time validity O The time validity of the subscription request. Reporting requirements O It describes the requirements for the energy analytics reporting. This requirement may include e.g. the type and frequency of reporting (periodic or event triggered), the reporting periodicity in case of periodic, and reporting thresholds.
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8.18.3.3 DN energy analytics response
Table 8.18.3.3-1 describes information elements for the DN energy analytics request from the VAL server to the ADAE server. Table 8.18.3.3-1: DN energy analytics response Information element Status Description Result M The result of the analytics request (positive or negative acknowledgement). Analytics ID O The identifier of the analytics event. Analytics Output O The predictive or statistical parameter, which can be stats or prediction related to the energy consumption or efficiency for the edge platform for a given area/time and based on the event type. > DNN M Identifies the data network name for which analytics information is provided. > DNAI M Identifier of a user plane access to one or more DN(s) of the DN. > Energy metrics O The predicted energy metrics. >> Energy Consumption (NOTE) O The predicted energy consumption per DNAI based on network and edge resource usage >> Energy Efficiency (NOTE) O The energy efficiency per DNAI based on network and edge resource usage (given a certain optimal energy consumption metric, which can be pre-configured). >> DN Data Volume (NOTE) O The predicted data volume per DNAI. > Area of Interest O The area (topological or geographical or edge area) where the analytics apply. > Applicable time period O The time period that the analytics applies to. >Confidence level O For predictive analytics, the achieved confidence level can be provided. NOTE: At least one of these shall be present.
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8.19 Procedure for ML Model Performance Degradation Detection
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8.19.1 General
This clause describes a procedure for ML model performance degradation detection for supporting application layer AI/ML operations.
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8.19.2 Procedure
Pre-conditions: - An ADAE Server, acting as an AIMLE consumer, receives a trained ML model (or ML model information) from the AIMLE Server. Figure 8.19.2-1: ADAES supports for ML model performance degradation detection 1. The ADAE Server receives a request from the consumer for analytics, generates analytics by using the ML model provided by AIMLE Server, and responds/notifies to the consumer with the required analytics. 2. The ADAE Server requests the consumer to provide feedback on the usage of the analytics. 3. The consumer uses the analytics for its operations and collects operation results. Performance degradation may be found from the operation results. The performance degradation may be caused by e.g., insufficient analytics accuracy, or the current analytics cannot fulfill the changed conditions at the consumer. 4. The consumer provides feedback on the result of usage of the analytics to the ADAE Server. 5. The ADAE Server updates the analytics accuracy based on feedback information from the consumer, and checks the performance of the ML model, which is used to generate the analytics, e.g., performance degradation of the ML model.
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9 ADAE layer APIs
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9.1 General
The following ADAE capabilities are offered as APIs: - ADAE server APIs; - A-ADRF APIs; The following SEAL service APIs are specified in 3GPP TS 23.434 [2] (and TS 23.435 [6] for NSCE): - Group management server APIs; - Location management server APIs; - Configuration management server APIs; - Identity management server APIs; - Key management server APIs; and - Network slice capability enablement APIs.
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9.2 ADAE server APIs
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9.2.1 General
This clause provides the APIs provided by ADAES.
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9.2.2 ADAE server APIs
Table 9.2.2-1 illustrates the ADAE server APIs. Table 9.2.2-1: List of ADAE server APIs API Name API Operations Known Consumer(s) Communication Type SS_ADAE_VAL_performance_analytics Subscribe VAL server Subscribe/Notify Notify SS_ADAE_slice_performance_analytics Subscribe VAL server Subscribe/Notify Notify SS_ADAE_UE-to-UE_performance_analytics Subscribe VAL server Subscribe/Notify Notify SS_ADAE_server-to-server_performance_analytics Subscribe VAL server / EES Subscribe/Notify Notify SS_ADAE_location_accuracy_analytics Subscribe VAL server Subscribe/Notify Notify SS_ADAE_service_API_analytics Subscribe VAL server / Subscriber/ API invoker Subscribe/Notify Notify SS_ADAE_slice_usage_pattern_analytics Subscribe VAL server / SEAL server Subscribe/Notify Notify SS_ADAE_edge_analytics Subscribe VAL server / EAS / EES Subscribe/Notify Notify Get VAL server / EAS / EES Request / Response SS_ADAES_slice_usage_stats Get VAL server Request / Response SS_ADAES_edge_preparation_analytics Subscribe VAL server / ECS / EES Subscribe/Notify Notify Get VAL server / ECS / EES Request / Response SS_ADAE_collision_detection_analytics Subscribe VAL server / LM server / UAE server, UAS application specific server Subscribe/Notify Notify Get VAL server / LM server / UAE server, UAS application specific server Request / Response SS_ADAE_location-related_UE_group_analytics Subscribe LM server Subscribe/Notify Notify Get LM server Request / Response SS_ ADAE_AIML_member_capability_analytics Subscribe VAL server / AIMLE server Subscribe/Notify Notify Get VAL server / AIMLE server Request / Response SS_ ADAE_ServiceExp Request ADAE client Request / Response SS_ADAE_DN_energy_analytics Get VAL server / EAS / EES Request / Response
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9.2.3 SS_ ADAE_VAL_performance_analytics API
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9.2.3.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for VAL performance analytics and for getting notified on the result.
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9.2.3.2 Subscribe
API operation name: VAL_performance_analytics_subscribe Description: The consumer subscribes for VAL performance analytics. Inputs: See clause 8.2.4.2. Outputs: See clause 8.2.4.3. See clause 8.2.2 and 8.2.3 for details of usage of this operation.
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9.2.3.3 Notify
API operation name: VAL_performance_analytics_notify Description: The consumer is notified by ADAES on the VAL performance analytics. Inputs: - Outputs: See clause 8.2.4.7. See clause 8.2.2 and 8.2.3 for details of usage of this operation.
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9.2.4 SS_ ADAE_slice_performance_analytics API
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9.2.4.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for slice specific application performance analytics and for getting notified when analytics are derived.
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9.2.4.2 Subscribe
API operation name: slice_performance_analytics_subscribe Description: The consumer subscribes for slice specific performance analytics. Inputs: See clause 8.3.3.2. Outputs: See clause 8.3.3.3. See clause 8.3.2 for details of usage of this operation.
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9.2.4.3 Notify
API operation name: slice_performance_analytics_notify Description: The consumer is notified by ADAES on the slice specific performance analytics. Inputs: - Outputs: See clause 8.3.3.4. See clause 8.3.2 for details of usage of this operation.
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9.2.5 SS_ ADAE_UE-to-UE_performance_analytics API
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9.2.5.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for UE-to-UE session performance analytics and for getting notified when analytics are derived.
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9.2.5.2 Subscribe
API operation name: UE-to-UE performance_analytics_subscribe Description: The consumer subscribes for UE-to-UE performance analytics. Inputs: See clause 8.4.3.2. Outputs: See clause 8.4.3.3. See clause 8.4.2 for details of usage of this operation.
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9.2.5.3 Notify
API operation name: UE-to-UE performance_analytics_notify Description: The consumer is notified by ADAES on the slice specific performance analytics. Inputs: - Outputs: See clause 8.4.3.6. See clause 8.4.2 for details of usage of this operation.
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9.2.6 SS_ ADAE_location_accuracy_analytics API
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9.2.6.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for location accuracy analytics and for getting notified when analytics are derived.
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9.2.6.2 Subscribe
API operation name: Location_accuracy_analytics_subscribe Description: The consumer subscribes for location accuracy analytics. Inputs: See clause 8.5.3.2. Outputs: See clause 8.5.3.3. See clause 8.5.2 for details of usage of this operation.
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9.2.6.3 Notify
API operation name: Location_accuracy_analytics_notify Description: The consumer is notified by ADAES on the location accuracy analytics. Inputs: - Outputs: See clause 8.5.3.6. See clause 8.5.2 for details of usage of this operation.
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9.2.7 SS_ ADAE_service_API_analytics API
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9.2.7.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for service API analytics and for getting notified when analytics are derived.
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9.2.7.2 Subscribe
API operation name: Service_API_analytics_subscribe Description: The consumer subscribes for service API analytics. Inputs: See clause 8.6.3.2. Outputs: See clause 8.6.3.3. See clause 8.6.2 for details of usage of this operation. 9.2.6.3 Notify API operation name: Service_API_analytics_notify Description: The consumer is notified by ADAES on the location accuracy analytics. Inputs: - Outputs: See clause 8.6.3.6. See clause 8.6.2 for details of usage of this operation.
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9.2.8 SS_ADAE_slice_usage_pattern_analytics API
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9.2.8.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for slice usage pattern analytics and for getting notified when analytics are derived.
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9.2.8.2 Subscribe
API operation name: slice_usage_pattern_analytics_subscribe Description: The consumer subscribes for slice usage pattern analytics. Inputs: See clause 8.7.3.2. Outputs: See clause 8.7.3.3. See clause 8.7.2 for details of usage of this operation.
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9.2.8.3 Notify
API operation name: slice_usage_pattern_analytics_notify Description: The consumer is notified by ADAES on the slice usage pattern analytics. Inputs: - Outputs: See clause 8.7.3.4. See clause 8.7.2 for details of usage of this operation.
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9.2.9 SS_ ADAE_edge_analytics API
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9.2.9.1 General
API description: This API enables the VAL server to communicate with the ADAE server for subscribing for edge load analytics and for getting notified when analytics are derived.
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9.2.9.2 Subscribe
API operation name: edge_analytics_subscribe Description: The consumer subscribes for edge load analytics. Inputs: See clause 8.8.3.2. Outputs: See clause 8.8.3.3. See clause 8.8.2 for details of usage of this operation.
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9.2.9.3 Notify
API operation name: edge_analytics_notify Description: The consumer is notified by ADAES on the edge load analytics. Inputs: - Outputs: See clause 8.8.3.7. See clause 8.8.2.1 for details of usage of this operation.
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9.2.9.4 Get
API operation name: edge_analytics_get Description: The consumer requests edge analytics data. Inputs: See clause 8.8.3.8. Outputs: See clause 8.8.3.9. See clause 8.8.2.2 for details of usage of this operation.
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9.2.10 SS_ ADAE_slice_usage_stats
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9.2.10.1 General
API description: This API enables the Consumer to communicate with the ADAE server for requesting and receiving slice usage statistical data.
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9.2.10.2 Get
API operation name: slice_usage_stats_get Description: The consumer requests and receives slice usage statistics from ADAE server. Inputs: See clause 8.7.4.7. Outputs: See clause 8.7.4.8. See clause 8.7.3 for details of usage of this operation.
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9.2.11 SS_ADAE_edge_preparation_analytics API
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9.2.11.1 General
API description: This API enables the analytics consumer (e.g., the VAL server, ECS, EES) to communicate with the ADAE server for requesting or subscribing to edge computing preparation.
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9.2.11.2 Subscribe
API operation name: edge_preparation_analytics_subscribe Description: The consumer subscribes for edge computing preparation analytics. Inputs: See clause 8.11.3.2. Outputs: See clause 8.11.3.3. See clause 8.11.2.1 for details of usage of this operation.
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9.2.11.3 Notify
API operation name: edge_preparation_analytics_notify Description: The consumer is notified by the ADAE server on the edge computing preparation analytics. Inputs: - Outputs: See clause 8.11.3.4. See clause 8.112.1 for details of usage of this operation.
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9.2.11.4 Get
API operation name: edge_preparation_analytics_get Description: The consumer requests edge computing preparation analytics Inputs: -See clause 8.11.3.7 Outputs: See clause 8.11.3.8. See clause 8.11.2.2 for details of usage of this operation.
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9.2.12 SS_ADAE_server-to-server_performance_analytics API
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9.2.12.1 General
API description: This API enables the analytics consumer (e.g., the VAL server, EES) to communicate with the ADAE server for requesting or subscribing to server-to-server performance analytics.
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9.2.12.2 Subscribe
API operation name: server-to-server_performance_analytics_subscribe Description: The consumer subscribes to the ADAE server for Server-to-server performance analytics. Inputs: See clause 8.13.3.2. Outputs: See clause 8.13.3.3. See clause 8.13.2.1 for details of usage of this operation.
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9.2.12.3 Notify
API operation name: server-to-server_performance_analytics_notify Description: The consumer is notified by the ADAE server on the Server-to-server performance analytics. Inputs: - Outputs: See clause 8.13.3.4. See clause 8.13.2.1 for details of usage of this operation.
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9.2.13 SS_ADAE_collision_detection_analytics API
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9.2.13.1 General
API description: This API enables the analytics consumer (e.g. VAL Server, LM Server, UAE server, UAS application specific server) to communicate with the ADAE server for requesting or subscribing to collision detection analytics.
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9.2.13.2 Subscribe
API operation name: collision_detection_analytics_subscribe Description: The consumer subscribes for collision detection analytics. Inputs: See clause 8.14.3.2. Outputs: See clause 8.14.3.3. See clause 8.14.2.1 for details of usage of this operation.
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9.2.13.3 Notify
API operation name: collision_detection_analytics_notify Description: The consumer is notified by the ADAE server on collision detection analytics. Inputs: - Outputs: See clause 8.14.3.4. See clause 8.14.2.1 for details of usage of this operation.
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9.2.13.4 Get
API operation name: collision_detection_analytics_get Description: The consumer requests collision detection analytics. Inputs: See clause 8.14.3.8. Outputs: See clause 8.14.3.9. See clause 8.14.2.2 for details of usage of this operation.
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9.2.14 SS_ADAE_location-related_UE_group_analytics API
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9.2.14.1 General
API description: This API enables the analytics consumer (e.g. LMS) to communicate with the ADAE server for requesting or subscribing to location-related UE group analytics.
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9.2.14.2 Subscribe
API operation name: location-related_UE_group_analytics_subscribe Description: The consumer subscribes for location-related UE group analytics. Inputs: See clause 8.15.3.2. Outputs: See clause 8.15.3.3.2. See clause 8.15.2.1 for details of usage of this operation.
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9.2.14.3 Notify
API operation name: location-related_UE_group_analytics_notify Description: The consumer is notified by the ADAE server on location-related UE group analytics. Inputs: - Outputs: See clause 8.15.3.4. See clause 8.15.2.1 for details of usage of this operation.
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9.2.14.4 Get
API operation name: location-related_UE_group_analytics_get Description: The consumer requests location-related UE group analytics. Inputs: -See clause 8.15.3.8 Outputs: See clause 8.15.3.9. See clause 8.15.2.2 for details of usage of this operation.
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9.2.15 SS_ADAE_AIML_member_capability_analytics API
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9.2.15.1 General
API description: This API enables the analytics consumer (e.g. VAL Server, AIMLE Server) to communicate with the ADAE server for requesting or subscribing to application layer AIML member capability analytics.
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9.2.15.2 Subscribe
API operation name: AIML_member_capability_analytics_subscribe Description: The consumer subscribes for application layer AIML member capability analytics. Inputs: See clause 8.16.3.2. Outputs: See clause 8.16.3.3. See clause 8.16.2.1 for details of usage of this operation.
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9.2.15.3 Notify
API operation name: AIML_member_capability_analytics_notify Description: The consumer is notified by the ADAE server on application layer AIML member capability analytics. Inputs: - Outputs: See clause 8.16.3.4. See clause 8.16.2.1 for details of usage of this operation.
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9.2.15.4 Get
API operation name: AIML_member_capability_analytics_get Description: The consumer requests application layer AIML member capability analytics. Inputs: -See clause 8.16.3.8 Outputs: See clause 8.16.3.9. See clause 8.16.2.2 for details of usage of this operation.
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9.2.16 SS_ ADAE_ServiceExp API
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9.2.16.1 General
API description: This API enables the ADAE client share service experience information to ADAE server.
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9.2.16.2 Request
API operation name: SS_ ADAE_ServiceExp_Request Description: The consumer sends application service experience report to the server. Inputs: See clause 8.9.3.1. Outputs: See clause 8.9.3.2 See clause 8.9.2.1 for details of usage of this operation.
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9.2.17 SS_ ADAE_DN_energy_analytics API
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9.2.17.1 General
API description: This API enables the VAL server to communicate with the ADAE server for requesting for DN energy efficiency/consumption analytics.
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9.2.17.2 Get DN_energy_analytics
API operation name: DN_energy_analytics_get Description: The consumer requests DN energy efficiency/consumption analytics. Inputs: See clause 8.18.3.2. Outputs: See clause 8.18.3.3. See clause 8.18.2 for details of usage of this operation.
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9.3 A-ADRF APIs
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9.3.1 General
This clause provides the APIs provided by A-ADRF.
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9.3.2 A-ADRF APIs
Table 9.3.2-1 illustrates the A-ADRF APIs. Table 9.3.2-1: List of A-ADRF APIs API Name API Operations Known Consumer(s) Communication Type SS_AADRF_Data_Collection Subscribe ADAES Subscribe / Notify Notify SS_ AADRF_Historical_ServiceAPI_Logs Get ADAES Request / Response SS_AADRF_NetworkSlice_Data Get ADAES Request / Response SS_AADRF_Location_Accuracy_Data Get ADAES Request / Response SS_AADRF_EdgeData_Collection Subscribe ADAES Subscribe / Notify Notify ADAES SS_AADRF_Edge_Preparation_Data Get ADAES Request / Response SS_AADRF_Data_Storage Request Subscription ADAE server, A-DCCF Request / Response Store Data ADAE server Request / Response SS_AADRF_ServerToServer_Analytics Get ADAES Request / Response
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9.3.3 SS_AADRF_Data_Collection API
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9.3.3.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF for subscribing for offline data collection and for getting notified about the offline data/statistics.
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9.3.3.2 Subscribe
API operation name: Data_Collection_Subscribe Description: The consumer subscribes for offline data from A-ADRF. Inputs: See clause 8.2.4.4. Outputs: See clause 8.2.4.5. See clause 8.2.2 for details of usage of this operation.
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9.3.3.3 Notify
API operation name: Data_Collection_Notify Description: The consumer is receiving the offline data from A-ADRF as notification, based on subscription. Inputs: - Outputs: See clause 8.2.4.6. See clause 8.2.2 for details of usage of this operation.
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9.3.4 SS_ AADRF_Historical_serviceAPI_logs API
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9.3.4.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF for requesting service API logs and receiving the offline data/statistics on API logs.
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9.3.4.2 Get
API operation name: Historical_ServiceAPI_Logs_Get Description: The consumer requests API logs from A-ADRF. Inputs: See clause 8.6.3.4. Outputs: See clause 8.6.3.5. See clause 8.6.2 for details of usage of this operation.
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9.3.5 SS_ AADRF_NetworkSlice_data API
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9.3.5.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF for requesting and receiving network slice data.
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9.3.5.2 Get
API operation name: NetworkSlice_Data_Get Description: The consumer requests network slice data from A-ADRF. Inputs: See clause 8.7.3.5. Outputs: See clause 8.7.3.6. See clause 8.7.2 for details of usage of this operation.
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9.3.6 SS_AADRF_EdgeData_Collection API
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9.3.6.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF for subscribing for edge data collection and for getting notified about the offline data/statistics for the EDN and/or EAS/EES.
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9.3.6.2 Subscribe
API operation name: EdgeData_Collection_Subscribe Description: The consumer subscribes for offline edge data from A-ADRF. Inputs: See clause 8.8.3.4. Outputs: See clause 8.8.3.5. See clause 8.8.2 for details of usage of this operation.
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9.3.6.3 Notify
API operation name: EdgeData_Collection_Notify Description: The consumer is receiving the offline edge data from A-ADRF as notification, based on subscription. Inputs: - Outputs: See clause 8.8.3.6. See clause 8.8.2 for details of usage of this operation.
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9.3.7 SS_AADRF_Location_Accuracy API
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9.3.7.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF to request location analytics/data for VAL UEs or VAL service area.
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9.3.7.2 Get
API operation name: Location_Accuracy_Data_Get Description: The consumer is receiving offline location analytics/data from A-ADRF. Inputs: See clause 8.5.3.4. Outputs: See clause 8.5.3.5. See clause 8.5.2 for details of usage of this operation.
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9.3.8 SS_AADRF_Edge_Preparation_Data API
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9.3.8.1 General
API description: This API enables the ADAE server to communicate with the A-ADRF to request edge computing preparation data for the EAS, EES, and/or ECS.
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9.3.8.2 Get
API operation name: edge_preparation_data_get Description: The consumer is receiving offline edge computing preparation data from the A-ADRF. Inputs: See clause 8.11.3.5. Outputs: See clause 8.11.3.6. See clause 8.11.2.1 for details of usage of this operation.
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9.3.9 SS_AADRF_Data_Storage API
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9.3.9.1 General
API description: This API enables the ADAE server or the A-DCCF to request the A-ADRF to initiate a subscription for data or analytics. Data or analytics provided in notifications as a result of the subsequent subscription by the A-ADRF are stored in the A-ADRF. This API also enables the consumer to request the A-ADRF to store data or analytics from ADAE server or A-DCCF.