3 Definitions of terms, symbols and abbreviations

26.1133GPPEnabler for Immersive Real-time CommunicationRelease 18TS

3.1 Terms

For the purposes of the present document, the terms given in TR 21.905 [1] 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 [1].

example: text used to clarify abstract rules by applying them literally.

3.2 Symbols

For the purposes of the present document, the following symbols apply:

<symbol> <Explanation>

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].

3DoF Three Degrees of Freedom

6DoF Six Degrees of Freedom

API Application Programming Interface

AR Augmented Reality

DTLS Datagram Transport Layer Security

FFS For Further Study

FoV Field of View

HMD Head-Mounted Display

HTTP Hyper-Text Transfer Protocol

ICE` Interactive Connectivity Establishment

IMU Inertial Measurement Unit

iRTC Immersive Real-Time Communication

LIDAR Light Detection and Ranging

MR Mixed Reality

NAT Network Address Translation

OTT Over-The-Top

RGB Red-Green-Blue colour space

RGBD Red-Green-Blue-Depth

RTC Real-Time Communication

RTP Real-time Transport Protocol

SCTP Stream Control Transmission Protocol

SLAM Simultaneous Localization And Mapping

SRTCP Secure Real-time Transport Control Protocol

SRTP Secure Real-time Transport Protocol

SSE Server-Sent Events

STUN Session Traversal Utilities for NAT

TLS Transport Layer Security

ToF Time of Flight

TURN Traversal Using Relays around NAT

WebRTC Web Real-Time Communication

XHR XMLHttpRequest

XR Extended Reality