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Content for  TS 29.554  Word version:  17.1.0

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1  ScopeWord‑p. 6

The present specification provides the stage 3 definition of the Background Data Transfer (BDT) Policy Control Service (Npcf_BDTPolicyControl) of the 5G System.
The 5G System Architecture is defined in TS 23.501. The stage 2 definition and related procedures for BDT Policy Control Service are specified in TS 23.502 and TS 23.503.
The 5G System stage 3 call flows are provided in TS 29.513.
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in TS 29.500 and TS 29.501.
The Policy Control Function (PCF) provides the BDT Policy Control Service. This service provides background data transfer policy negotiation function.
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2  References

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 23.501: "System Architecture for the 5G System; Stage 2".
[3]
TS 23.502: "Procedures for the 5G System; Stage 2".
[4]
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[5]
TS 29.513: "5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3".
[6]
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[7]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[8]
RFC 7540:  "Hypertext Transfer Protocol Version 2 (HTTP/2)".
[9]
RFC 8259:  "The JavaScript Object Notation (JSON) Data Interchange Format".
[10]
OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0.
[11]
TS 29.504: "5G System; Unified Data Repository Services; Stage 3".
[12]
TS 29.519: "5G System; Usage of the Unified Data Repository service for Policy Data, Application Data and Structured Data for exposure; Stage 3".
[13]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[14]
TS 29.122: "T8 reference point for Northbound APIs".
[15]
RFC 7396:  "JSON Merge Patch".
[16]
RFC 3986:  "Uniform Resource Identifier (URI): Generic Syntax".
[17]
RFC 7807:  "Problem Details for HTTP APIs".
[18]
TS 33.501: "Security architecture and procedures for 5G system".
[19]
RFC 6749:  "The OAuth 2.0 Authorization Framework".
[20]
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
[21]
TR 21.900: "Technical Specification Group working methods".
[22]
TS 29.520: "5G System; Network Data Analytics Services; Stage 3".
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3  Definitions and abbreviationsWord‑p. 7

3.1  Definitions

For the purposes of the present document, the terms and definitions 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.
Background data transfer:
feature that enables a 3rd party service provider to keep their costs lower by favouring time windows for data transfer to specific UEs in a geographical area during non-busy hours that are less costly and able to handle larger bitrates.
For the purposes of the present document, the following terms and definitions given in TS 23.501, subclause 3.1 apply:
5G System
Network Function
NF service
NF service operation
Service based interface
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3.2  Abbreviations

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.
AF
Application Function
ASP
Application Service Provider
BDT
Background Data Transfer
DNN
Data Network Name
JSON
JavaScript Object Notation
NEF
Network Exposure Function
NG-RAN
Next Generation - Radio Access Network
NRF
Network Repository Function
NWDAF
Network Data Analytics Function
PCF
Policy Control Function
SBI
Service Based Interface
S-NSSAI
Single Network Slice Selection Assistance Information
TAI
Tracking Area Identity
UDR
Unified Data Repository
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