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Content for  TS 29.549  Word version:  18.4.0

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1…   5…   7…   8… 
1 Scope  2 References  3 Definitions of terms and abbreviations  3.1 Terms  3.2 Abbreviations  4 Overview 
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1  Scope  p. 22

The present specification describes the APIs for the Service Enabler Architecture Layer for Verticals (SEAL). The related stage 2 architecture, functional requirements and information flows are specified in TS 23.434 and TS 23.433 (for SEAL Data Delivery).

2  References  p. 22

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.434: "Service Enabler Architecture Layer for Verticals (SEAL); Functional architecture and information flows".
[3]
TS 29.122: "T8 reference point for Northbound Application Programming Interfaces (APIs)".
[4]
RFC 6455:  "The Websocket Protocol".
[5]
RFC 7230:  "Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing".
[6]
RFC 7231:  "Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content".
[7]
RFC 7232:  "Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests".
[8]
RFC 7233:  "Hypertext Transfer Protocol (HTTP/1.1): Range Requests".
[9]
RFC 7234:  "Hypertext Transfer Protocol (HTTP/1.1): Caching".
[10]
RFC 7235:  "Hypertext Transfer Protocol (HTTP/1.1): Authentication".
[11]  Void
[12]
RFC 7540:  "Hypertext Transfer Protocol Version 2 (HTTP/2)".
[13]
RFC 8259:  "The JavaScript Object Notation (JSON) Data Interchange Format".
[14]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[15]
Open API: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0.
[16]
TS 29.222: "Common API Framework for 3GPP Northbound APIs; Stage 3".
[17]
TS 23.222: "Common API Framework for 3GPP Northbound APIs; Stage 2".
[18]
TS 33.122: "Security Aspects of Common API Framework for 3GPP Northbound APIs".
[19]
RFC 6749:  "The OAuth 2.0 Authorization Framework".
[20]
TS 29.523: "5G System; Policy Control Event Exposure Service; Stage 3".
[21]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[22]
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[23]
TS 29.468: "Group Communication System Enablers for LTE (GCSE_LTE); MB2 reference point; Stage 3".
[24]
TR 21.900: "Technical Specification Group working methods".
[25]
TS 33.210: "3G security; Network Domain Security (NDS); IP network layer security".
[26]
TS 33.434: "Service Enabler Architecture Layer for Verticals (SEAL); Security Aspects".
[27]
TS 29.486: "V2X Application Enabler (VAE) Services; Stage 3".
[28]
TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
[29]
IEEE 802.1Qcc-2018: "IEEE Standard for Local and Metropolitan Area Networks-Bridges and Bridged Networks".
[30]
TS 29.514: "5G System; Policy Authorization Service; Stage 3".
[31]
TS 29.572: "5G System; Location Management Services; Stage 3".
[32]
TS 29.508: "5G System; Session Management Event Exposure Service; Stage 3".
[33]
TS 29.520: "5G System; Network Data Analytics Services; Stage 3".
[34]
TS 23.433: "Service Enabler Architecture Layer for Verticals (SEAL); Data Delivery enabler for vertical applications".
[35]
TS 29.548: "Service Enabler Architecture Layer for Verticals (SEAL); SEAL Data Delivery (SEALDD) Server Services; Stage 3".
→ to date, still a draft
[36]
TS 23.247: "Architectural enhancements for 5G multicast-broadcast services; Stage 2".
[37]
TS 23.246: "Multimedia Broadcast/Multicast Service (MBMS); Architecture and functional description".
[38]
TS 23.436: "Functional architecture and information flows for Application Data Analytics Enablement Service".
[39]
TS 23.502: "Procedures for the 5G System; Stage 2".
[40]
RFC 4122:  "A Universally Unique IDentifier (UUID) URN Namespace".
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3  Definitions of terms and abbreviations  p. 23

3.1  Terms  p. 23

For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
VAL service:
A generic name for any service offered by the VAL service provider to their VAL users.
SEAL service:
A generic name for a common service (e.g. group management, configuration management, location management) that can be utilized by multiple vertical applications.
SEAL provider:
Provider of SEAL service(s).
VAL server:
A generic name for the server application function of a specific VAL service.
SEAL server:
An entity that provides the server side functionalities corresponding to the specific SEAL service.
VAL system:
The collection of applications, services, and enabling capabilities required to support a VAL service.
VAL group:
A defined set of VAL UEs or VAL users configured for specific purpose in a VAL service.
VAL group home system:
The VAL system where the VAL group is defined.
VAL group member:
A VAL service user, whose VAL user ID is listed in a particular VAL group.
Vertical application:
An application catering to a specific vertical.
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3.2  Abbreviations  p. 24

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
5GS
5G System
ADAE
Application Data Analytics Enablement
AEF
API Exposing Function
API
Application Programming Interface
BDT
Background Data Transfer
DS-TT
Device-Side TSN Translator
JSON
JavaScript Object Notation
NDS
Network Domain Security
NDS/IP
NDS for IP based protocols
NRM
Network Resource Management
NSCE
Network Slice Capability Enablement
PLMN
Public Land Mobile Network
REST
Representational State Transfer
SCEF
Service Capability Exposure Function
SCS
Service Capability Server
SEAL
Service Enabler Architecture Layer for Verticals
SEALDD
SEAL Data Delivery
TMGI
Temporary Mobile Group Identity
TSC
Time Sensitive Communication
TSN
Time Sensitive Networking
UE
User Equipment
VAL
Vertical Application Layer
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4  Overview  p. 24

3GPP has considered in TS 23.434 and TS 23.433 (for SEALDD) the development of Service enabler architecture layer for verticals (SEAL) over 3GPP networks to support vertical applications (e.g. V2X applications). It specifies the functional architecture for SEAL and the procedures, information flows and APIs for each service within SEAL in order to support vertical applications over the 3GPP systems. To ensure efficient use and deployment of vertical applications over 3GPP systems, SEAL services includes, group management, configuration management, location management, identity management, key management, network resource management, network slice capability enablement, application data analytics enablement (ADAE) and data delivery management.
Clause 6 of TS 23.434 specifies the functional entities and domains of the functional model, reference points descriptions and SEAL APIs for SEAL services.
The present document specifies the APIs needed to support SEAL. 3GPP TS 29.548 [35] specifies the APIs needed for SEALDD.
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