openapi: 3.2.0
info:
  title: 3gpp-musa Member UE Selection Assistance Subscriptions (Collection) API
  version: 1.1.0
  description: "API for Member UE Selection Assistance.  \n© 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).  \nAll rights reserved.\n"
servers:
- url: '{apiRoot}/3gpp-musa/v1'
  variables:
    apiRoot:
      default: https://example.com
      description: apiRoot as defined in clause 5.2.4 of 3GPP TS 29.122.
security:
- {}
- oAuth2ClientCredentials: []
tags:
- name: Member UE Selection Assistance Subscriptions (Collection)
paths:
  /{afId}/subscriptions:
    parameters:
    - name: afId
      in: path
      description: Represents the identifier of the AF
      required: true
      schema:
        type: string
    get:
      summary: Retrieve all the active Member UE Selection Assistance Subscriptions  managed by the NEF.
      operationId: GetMemberUESelectAssistSubsc
      tags:
      - Member UE Selection Assistance Subscriptions (Collection)
      responses:
        '200':
          description: 'OK. All the Individual Member UE Selection Assistance Subscription resource(s) managed by the NEF are returned. If there are no active Individual Member UE Selection Assistance Subscription resources at the NEF, an empty array is returned.

            '
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/MemUeSelectAssistSubsc'
                minItems: 0
        '307':
          $ref: TS29122_CommonData.yaml#/components/responses/307
        '308':
          $ref: TS29122_CommonData.yaml#/components/responses/308
        '400':
          $ref: TS29122_CommonData.yaml#/components/responses/400
        '401':
          $ref: TS29122_CommonData.yaml#/components/responses/401
        '403':
          $ref: TS29122_CommonData.yaml#/components/responses/403
        '404':
          $ref: TS29122_CommonData.yaml#/components/responses/404
        '406':
          $ref: TS29122_CommonData.yaml#/components/responses/406
        '429':
          $ref: TS29122_CommonData.yaml#/components/responses/429
        '500':
          $ref: TS29122_CommonData.yaml#/components/responses/500
        '503':
          $ref: TS29122_CommonData.yaml#/components/responses/503
        default:
          $ref: TS29122_CommonData.yaml#/components/responses/default
    post:
      summary: Create a new Member UE Selection Assistance Subscription.
      operationId: CreateMemberUESelectAssist
      tags:
      - Member UE Selection Assistance Subscriptions (Collection)
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MemUeSelectAssistSubsc'
      responses:
        '201':
          description: 'Created. A representation of the created Individual Member UE Selection Assistance Subscription resource is returned in the response body.

            '
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MemUeSelectAssistSubsc'
          headers:
            Location:
              description: 'Contains the URI of the newly created resource.

                '
              required: true
              schema:
                type: string
        '400':
          $ref: TS29122_CommonData.yaml#/components/responses/400
        '401':
          $ref: TS29122_CommonData.yaml#/components/responses/401
        '403':
          $ref: TS29122_CommonData.yaml#/components/responses/403
        '404':
          $ref: TS29122_CommonData.yaml#/components/responses/404
        '411':
          $ref: TS29122_CommonData.yaml#/components/responses/411
        '413':
          $ref: TS29122_CommonData.yaml#/components/responses/413
        '415':
          $ref: TS29122_CommonData.yaml#/components/responses/415
        '429':
          $ref: TS29122_CommonData.yaml#/components/responses/429
        '500':
          $ref: TS29122_CommonData.yaml#/components/responses/500
        '503':
          $ref: TS29122_CommonData.yaml#/components/responses/503
        default:
          $ref: TS29122_CommonData.yaml#/components/responses/default
      callbacks:
        MemberUESelectAssistNotif:
          '{$request.body#/notifUri}':
            post:
              requestBody:
                required: true
                content:
                  application/json:
                    schema:
                      type: array
                      items:
                        $ref: '#/components/schemas/MemUeSeletAssistNotif'
                      minItems: 1
              responses:
                '204':
                  description: 'No Content. The notification is successfully received and acknowledged.

                    '
                '307':
                  $ref: TS29122_CommonData.yaml#/components/responses/307
                '308':
                  $ref: TS29122_CommonData.yaml#/components/responses/308
                '400':
                  $ref: TS29122_CommonData.yaml#/components/responses/400
                '401':
                  $ref: TS29122_CommonData.yaml#/components/responses/401
                '403':
                  $ref: TS29122_CommonData.yaml#/components/responses/403
                '404':
                  $ref: TS29122_CommonData.yaml#/components/responses/404
                '411':
                  $ref: TS29122_CommonData.yaml#/components/responses/411
                '413':
                  $ref: TS29122_CommonData.yaml#/components/responses/413
                '415':
                  $ref: TS29122_CommonData.yaml#/components/responses/415
                '429':
                  $ref: TS29122_CommonData.yaml#/components/responses/429
                '500':
                  $ref: TS29122_CommonData.yaml#/components/responses/500
                '503':
                  $ref: TS29122_CommonData.yaml#/components/responses/503
                default:
                  $ref: TS29122_CommonData.yaml#/components/responses/default
components:
  schemas:
    UeHisLocFilterCriteria:
      description: 'Represents the UE historical location filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent
        loc:
          $ref: TS29122_CommonData.yaml#/components/schemas/LocationArea5G
    FilterCriterionType:
      anyOf:
      - type: string
        enum:
        - QOS
        - ACCESS_RAT_TYPE
        - E2E_DATA_VOLUME_TRANSFER_TIME
        - UE_LOCATION
        - UE_HISTORICAL_LOCATION
        - UE_DIRECTION
        - UE_DISTANCE
        - SERVICE_EXPERIENCE
        - DNN
      - type: string
        description: 'This string provides forward-compatibility with future extensions to the enumeration and is not used to encode content defined in the present version of this API.

          '
      description: "Represents the filter criterion event.  \nPossible values are:\n  - QOS: Indicates QoS criterion.\n  - ACCESS_RAT_TYPE: Indicates that the type of filter criterion is Access and Rat types\n    criterion.\n  - E2E_DATA_VOLUME_TRANSFER_TIME: Indicates that the type of filter criterion is End-to-end\n    data volume transfer time criterion.\n  - UE_LOCATION: Indicates that the type of filter criterion is UE location criterion.\n  - UE_HISTORICAL_LOCATION: Indicates that the type of filter criterion is UE historical\n    location criterion.\n  - UE_DIRECTION: Indicates that the type of filter criterion is UE direction criterion.\n  - UE_DISTANCE: Indicates that the type of filter criterion is UE distance criterion.\n  - SERVICE_EXPERIENCE: Indicates that the type of filter criterion is Service Experience\n    criterion.\n  - DNN: Indicates that the type of filter criterion is DNN criterion.\n"
    MemUeSeletReport:
      description: Represents a the Member UE Selection report.
      type: object
      properties:
        criterionType:
          $ref: '#/components/schemas/FilterCriterionType'
        numForCriterion:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
      required:
      - criterionType
      - numForCriterion
    CandiUeListInfo:
      description: Represents the list of candidate UEs information.
      type: object
      properties:
        candUeInfos:
          type: array
          items:
            $ref: '#/components/schemas/CandUeInfo'
          minItems: 1
        remdTimeWin:
          $ref: TS29122_CommonData.yaml#/components/schemas/TimeWindow
      required:
      - candUeInfos
    DnnFilterCriteria:
      description: 'Represents the DNN filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29508_Nsmf_EventExposure.yaml#/components/schemas/SmfEvent
        dnn:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnn
    UeDistanceFilterCriteria:
      description: 'Represents the UE distance filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent
        distance:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
    AccessRatTypeFilterCriteria:
      description: Represents the the Access types and RAT types filtering criteria for Member UE selection.
      type: object
      properties:
        events:
          type: array
          items:
            $ref: TS29508_Nsmf_EventExposure.yaml#/components/schemas/SmfEvent
          minItems: 1
          description: 'Contains the SMF event(s) which may be used to retrieve the Access Type and/or RAT Type of the selected UE.

            '
        dnn:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnn
        snssai:
          $ref: TS29571_CommonData.yaml#/components/schemas/Snssai
        accTypes:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/AccessType
          minItems: 1
          description: Contains the Access Types of the selected UE.
        ratTypes:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/RatType
          minItems: 1
          description: Contains the RAT Types of the selected UE.
    QoSFilterCriteria:
      description: Represents the QoS filtering criteria for Member UE selection.
      type: object
      properties:
        event:
          $ref: TS29508_Nsmf_EventExposure.yaml#/components/schemas/SmfEvent
        appId:
          type: string
          description: Contains the identifier(s) of the application.
        dnn:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnn
        snssai:
          $ref: TS29571_CommonData.yaml#/components/schemas/Snssai
        ulDelay:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
        dlDelay:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
        rtDelay:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
    MemUeSelectAssistSubsc:
      description: Represents a Member UE Selection Assistance Subscription.
      type: object
      properties:
        afId:
          type: string
          description: Represents the identifier of the AF.
        tgtUeIds:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/Gpsi
          minItems: 1
          description: 'Contains the list of identifier(s) of the UEs for which Member UE Selection Assistance Reporting is requested.

            '
        tgtUeIps:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/IpAddr
          minItems: 1
          description: 'Contains the IP addresses of a list of UEs for Member UE Selection Assistance Reporting.

            '
        notifUri:
          $ref: TS29122_CommonData.yaml#/components/schemas/Uri
        notifId:
          type: string
          description: Contains the Notification Correlation ID assigned by the AF.
        expTime:
          $ref: TS29122_CommonData.yaml#/components/schemas/DateTime
        qosFilters:
          type: array
          items:
            $ref: '#/components/schemas/QoSFilterCriteria'
          minItems: 1
          description: Contains the QoS filtering criteria for Member UE selection.
        accRatTypeFilters:
          type: array
          items:
            $ref: '#/components/schemas/AccessRatTypeFilterCriteria'
          minItems: 1
          description: 'Contains the Access types and Rat types filtering criteria for Member UE selection.

            '
        e2eTransTimeFilters:
          type: array
          items:
            $ref: '#/components/schemas/E2ETransTimeFilterCriteria'
          minItems: 1
          description: 'Contains the End-to-end data volume transfer time filtering criteria for Member UE selection.

            '
        ueLocFilters:
          type: array
          items:
            $ref: '#/components/schemas/UeLocFilterCriteria'
          minItems: 1
          description: Contains the UE location filtering criteria for Member UE selection.
        ueHisLocFilters:
          type: array
          items:
            $ref: '#/components/schemas/UeHisLocFilterCriteria'
          minItems: 1
          description: 'Contains the UE historical location filtering criteria for Member UE selection.

            '
        ueDirFilters:
          type: array
          items:
            $ref: '#/components/schemas/UeDirectionFilterCriteria'
          minItems: 1
          description: Contains the UE direction filtering criteria for Member UE selection.
        ueDistanceFilters:
          type: array
          items:
            $ref: '#/components/schemas/UeDistanceFilterCriteria'
          minItems: 1
          description: Contains the UE distance filtering criteria for Member UE selection.
        serviceExpFilters:
          type: array
          items:
            $ref: '#/components/schemas/ServiceExpFilterCriteria'
          minItems: 1
          description: Contains the Service Experience filtering criteria for Member UE selection.
        dnnFilters:
          type: array
          items:
            $ref: '#/components/schemas/DnnFilterCriteria'
          minItems: 1
          description: Contains the DNN filtering criteria for Member UE selection.
        memUpdatePeriod:
          $ref: TS29571_CommonData.yaml#/components/schemas/DurationSec
        maxUeNum:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
        timeWin:
          $ref: TS29122_CommonData.yaml#/components/schemas/TimeWindow
        suppFeat:
          $ref: TS29571_CommonData.yaml#/components/schemas/SupportedFeatures
      required:
      - notifUri
      - notifId
      oneOf:
      - required:
        - tgtUeIds
      - required:
        - tgtUeIps
      anyOf:
      - required:
        - qosFilters
      - required:
        - accRatTypeFilters
      - required:
        - e2eTransTimeFilters
      - required:
        - ueLocFilters
      - required:
        - ueHisLocFilters
      - required:
        - ueDirFilters
      - required:
        - ueDistanceFilters
      - required:
        - serviceExpFilters
      - required:
        - dnnFilters
    E2ETransTimeFilterCriteria:
      description: 'Represents the End-to-end data volume transfer time filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent
        appId:
          type: string
          description: Contains the identifier of the application.
        dnn:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnn
        snssai:
          $ref: TS29571_CommonData.yaml#/components/schemas/Snssai
        dataVolTransTime:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/DataVolumeTransferTime
        geoDistrInfos:
          type: array
          items:
            $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/GeoDistributionInfo
          minItems: 1
          description: Indicates the geographical distribution of the UEs per location information.
        locationArea:
          $ref: TS29122_CommonData.yaml#/components/schemas/LocationArea5G
        numDataTrans:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
        timeInterval:
          $ref: TS29122_CommonData.yaml#/components/schemas/DurationSec
    MemUeSeletAssistNotif:
      description: Represents a Member UE Selection Assistance Notification.
      type: object
      properties:
        notifId:
          type: string
        candiUeInfos:
          type: array
          items:
            $ref: '#/components/schemas/CandiUeListInfo'
          minItems: 1
          description: 'Contains the list of candidate UEs information for Member Selection Assistance Reporting.

            '
        memUeSelectRpts:
          type: array
          items:
            $ref: '#/components/schemas/MemUeSeletReport'
          minItems: 1
          description: Contains the list of UEs for Member Selection Assistance Reporting.
      required:
      - notifId
      - candiUeInfos
    UeDirectionFilterCriteria:
      description: 'Represents the UE direction filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent
        directions:
          type: array
          items:
            $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/Direction
          minItems: 1
          description: Contains the moving directions of the UEs.
    ServiceExpFilterCriteria:
      description: 'Represents the Service Experience filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/NwdafEvent
        dnn:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnn
        snssai:
          $ref: TS29571_CommonData.yaml#/components/schemas/Snssai
        appId:
          type: string
          description: Contains the Identifier(s) of the application.
        dnai:
          $ref: TS29571_CommonData.yaml#/components/schemas/Dnai
        loc:
          $ref: TS29122_CommonData.yaml#/components/schemas/LocationArea5G
        contribWeightThr:
          $ref: TS29571_CommonData.yaml#/components/schemas/Uinteger
        expTypes:
          type: array
          items:
            $ref: TS29520_Nnwdaf_EventsSubscription.yaml#/components/schemas/ServiceExperienceType
          minItems: 1
          description: Contains the Service Experience Types.
    UeLocFilterCriteria:
      description: 'Represents the UE location filtering criteria for Member UE selection.

        '
      type: object
      properties:
        event:
          $ref: TS29518_Namf_EventExposure.yaml#/components/schemas/AmfEventType
        loc:
          $ref: TS29122_CommonData.yaml#/components/schemas/LocationArea5G
    CandUeInfo:
      description: Represents the candidate UE information.
      type: object
      properties:
        candUeId:
          $ref: TS29571_CommonData.yaml#/components/schemas/Gpsi
        candUeIp:
          $ref: TS29571_CommonData.yaml#/components/schemas/IpAddr
        qosFilter:
          $ref: '#/components/schemas/QoSFilterCriteria'
        accRatTypeFilter:
          $ref: '#/components/schemas/AccessRatTypeFilterCriteria'
        e2eTransTimeFilter:
          $ref: '#/components/schemas/E2ETransTimeFilterCriteria'
        ueLocFilter:
          $ref: '#/components/schemas/UeLocFilterCriteria'
        ueHisLocFilter:
          $ref: '#/components/schemas/UeHisLocFilterCriteria'
        ueDirFilter:
          $ref: '#/components/schemas/UeDirectionFilterCriteria'
        ueDistanceFilter:
          $ref: '#/components/schemas/UeDistanceFilterCriteria'
        serviceExpFilter:
          $ref: '#/components/schemas/ServiceExpFilterCriteria'
        dnnFilter:
          $ref: '#/components/schemas/DnnFilterCriteria'
      oneOf:
      - required:
        - candUeId
      - required:
        - candUeIp
  securitySchemes:
    oAuth2ClientCredentials:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: '{tokenUrl}'
          scopes: {}
externalDocs:
  description: '3GPP TS 29.522 V19.5.0; 5G System; Network Exposure Function Northbound APIs.

    '
  url: https://www.3gpp.org/ftp/Specs/archive/29_series/29.522/