openapi: 3.2.0
info:
  title: 3gpp-mbs-tmgi TMGI Allocation or Timer Expiry Refresh API
  version: 1.2.0
  description: "API for the allocation, deallocation and management of TMGI(s) for MBS.  \n© 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).  \nAll rights reserved.\n"
servers:
- url: '{apiRoot}/3gpp-mbs-tmgi/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: TMGI Allocation or Timer Expiry Refresh
paths:
  /allocate:
    post:
      summary: Request the allocation of TMGI(s) for new MBS session(s) or the refresh of the expiry time of already allocated TMGI(s).
      operationId: AllocateTmgi
      tags:
      - TMGI Allocation or Timer Expiry Refresh
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TmgiAllocRequest'
      responses:
        '200':
          description: 'OK. Successful case. The allocated TMGI(s) or a refreshed expiry time for the concerned already allocated TMGI(s) is/are returned to the requesting AF.

            '
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TmgiAllocResponse'
        '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':
          description: 'The request is rejected by the NEF and more details (along with ProblemDetails) may be returned.

            '
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/ProblemDetailsTmgiAlloc'
        '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:
          $ref: TS29122_CommonData.yaml#/components/responses/default
      callbacks:
        TmgiTimerExpiryNotification:
          '{$request.body#/notificationUri}':
            post:
              requestBody:
                description: 'Represents the MBS TMGI(s) timer expiry notification information (e.g. list of TMGI(s) for which the timer has expired).

                  '
                required: true
                content:
                  application/json:
                    schema:
                      $ref: '#/components/schemas/ExpiryNotif'
              responses:
                '204':
                  description: No content. The notification is successfully received.
                '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:
    ReducedMbsServArea:
      description: 'Represents the reduced MBS Service Area information.

        '
      type: object
      properties:
        reducedMbsServArea:
          $ref: TS29571_CommonData.yaml#/components/schemas/MbsServiceArea
        reducedExtMbsServArea:
          $ref: TS29571_CommonData.yaml#/components/schemas/ExternalMbsServiceArea
        reducedMbsServAreas:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/MbsServiceArea
          minItems: 1
        reducedExtMbsServAreas:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/ExternalMbsServiceArea
          minItems: 1
      oneOf:
      - required:
        - reducedMbsServArea
      - required:
        - reducedExtMbsServArea
      allOf:
      - not:
          required:
          - reducedMbsServArea
          - reducedExtMbsServAreas
      - not:
          required:
          - reducedExtMbsServArea
          - reducedMbsServAreas
    ExpiryNotif:
      description: Represents MBS TMGI(s) timer expiry notification information.
      type: object
      properties:
        tmgis:
          type: array
          items:
            $ref: TS29571_CommonData.yaml#/components/schemas/Tmgi
          minItems: 1
      required:
      - tmgis
    TmgiAllocResponse:
      description: 'Represents MBS TMGI(s) allocation information or the refreshed expiry time for already allocated TMGI(s)

        '
      type: object
      properties:
        tmgiInfo:
          $ref: TS29532_Nmbsmf_TMGI.yaml#/components/schemas/TmgiAllocated
        suppFeat:
          $ref: TS29571_CommonData.yaml#/components/schemas/SupportedFeatures
      required:
      - tmgiInfo
    ProblemDetailsTmgiAlloc:
      description: 'Represents an extension to the ProblemDetails data structure with additional error information related to TMGI Allocation.

        '
      allOf:
      - $ref: TS29122_CommonData.yaml#/components/schemas/ProblemDetails
      - $ref: '#/components/schemas/ReducedMbsServArea'
    TmgiAllocRequest:
      description: 'Represents the full set of parameters to initiate an MBS TMGI(s) allocation request or the refresh of the expiry time of already allocated TMGI(s).

        '
      type: object
      properties:
        afId:
          type: string
        tmgiParams:
          $ref: TS29532_Nmbsmf_TMGI.yaml#/components/schemas/TmgiAllocate
        notificationUri:
          $ref: TS29122_CommonData.yaml#/components/schemas/Uri
        mbsServiceArea:
          $ref: TS29571_CommonData.yaml#/components/schemas/MbsServiceArea
        extMbsServiceArea:
          $ref: TS29571_CommonData.yaml#/components/schemas/ExternalMbsServiceArea
        requestTestNotification:
          type: boolean
        websockNotifConfig:
          $ref: TS29122_CommonData.yaml#/components/schemas/WebsockNotifConfig
        suppFeat:
          $ref: TS29571_CommonData.yaml#/components/schemas/SupportedFeatures
      required:
      - afId
      - tmgiParams
      not:
        required:
        - mbsServiceArea
        - extMbsServiceArea
  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/