Content for TS 29.201 Word version: 18.0.0

1 Scope p. 6

The present document describes the Representational State Transfer (REST) reference point, which is used to exchange application level session information between the Protocol Converter (PC) and the Application Function (AF). REST shall be used as an architectural style as appropriate.

2 References p. 6

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]

TR 29.817: "Study on XML based access of AF to the PCRF".

[3]

TS 29.213: "Policy and Charging Control signalling flows and Quality of Service (QoS) parameter mapping".

[4]

TS 29.214: "Policy and Charging Control over Rx reference point".

[5]

TS 23.203: "Policy and Charging Control architecture".

[6] Void.

[7] Void.

[8]

RFC 793: "Transmission Control Protocol".

[9] Void.

[10]

RFC 3986: "Uniform Resource Identifier (URI): Generic Syntax".

[11]

RFC 1035: "Domain Names - Implementation and Specification".

[12]

RFC 2131: "Dynamic Host Configuration Protocol".

[13]

TS 33.310: "Network Domain Security (NDS); Authentication Framework (AF)".

[14]

RFC 2818: "HTTP Over TLS".

[15]

RFC 1786: "Uniform Resource Locators (URL)".

[16] Void.

[17]

RFC 6733: "Diameter Base Protocol".

[18]

RFC 7230: "Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing".

[19]

RFC 7231: "Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content".

[20]

RFC 7232: "Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests".

[21]

RFC 7233: "Hypertext Transfer Protocol (HTTP/1.1): Range Requests".

[22]

RFC 7234: "Hypertext Transfer Protocol (HTTP/1.1): Caching".

[23]

RFC 7235: "Hypertext Transfer Protocol (HTTP/1.1): Authentication".

3 Definitions and abbreviations p. 7

3.1 Definitions p. 7

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.

Application Function (AF):

element offering application(s) that use IP bearer resources.

Protocol Converter (PC):

element that converts the RESTful/XML based Rx reference point to the Diameter based Rx reference point.

Representation:

is a view of a resource state, it is encoded in one or more transferable formats, such as XML, JSON, plain text or other formats.

RESTful HTTP:

is an architectural style consisting of a coordinated set of architectural constraints applied to components, connectors, and data elements, within a distributed hypermedia system applied to the development of web services.

REST-Rx:

term that is used to indicate the Rx interface based on RESTful HTTP between the AF and the PC.

3.2 Abbreviations p. 7

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.

AAA

Authentication, Authorization, Accounting

Application Function

API

Application Programming Interface

BBERF

Bearer Binding and Event Reporting Function

DHCP

Dynamic Host Configuration Protocol

DNS

Domain Name System

DRA

Diameter Routing Agent

DRMP

Diameter Routing Message Priority

DSCP

Differentiated Services Code Point

HTTP

HyperText Transfer Protocol

HTTPS

Hypertext Transfer Protocol Secure

IP CAN

IP Connectivity Access Network

Protocol Converter

PCC

Policy and Charging Control

PCEF

Policy and Charging Enforcement Function

PCRF

Policy and Charging Rules Function

PDN

Packet Data Network

PLMN

Public Land Mobile Network

QoS

Quality of Service

REST

Representational State Transfer

SPR

Subscription Profile Repository

UDR

User Data Repository

URI

Uniform Resource Identifier

URL

Uniform Resource Locator

User Equipment

XML

Extensible Markup Language