3 Definitions and abbreviations

23.1413GPPArchitecture and functional descriptionPresence serviceRelease 15TS

3.1 Definitions

For the purposes of the present document, the terms and definitions defined in TR 21.905 [1] and TS 22.141 [2] and the following apply:

Presence List Server: functional entity that stores grouped lists of watched presentities and enables a Watcher Application to subscribe to the presence of multiple presentities using a single transaction.

Presence Network Agent: network located element that collects and sends network related presence information on behalf of the presentity to a presence server.

Presentity Presence Proxy: functional entity that provides presentity related functionality such as determining the presence server associated with a presentity.

Presence Server: network entity responsible for managing presence information on behalf of a presence entity.

Presence User Agent: a terminal or network located element that collects and sends user related presence information to a presence server on behalf of a Principal.

Watcher Presence Proxy: a functional entity that provides watcher related function such as authentication of watchers.

3.2 Abbreviations

For the purposes of the present document, the abbreviations in TR 21.905 [1] and TS 22.141 [2] and the following apply:

AAA Authentication, Authorisation and Accounting

CAMEL Customised Applications for Mobile network Enhanced Logic

CAP CAMEL Application Part

CGI Cell Global Identity

CS Circuit Switched

CSCF Call Session Control Function

GGSN Gateway GPRS Support Node

GMLC Gateway Mobile Location Centre

GPRS General Packet Radio Service

HLR Home Location Register

HSS Home Subscriber Server

HTTP Hyper Text Transport Protocol

I-CSCF Interrogating CSCF

IETF Internet Engineering Task Force

IMS IP Multimedia Subsystem

ISDN Integrated Service Digital Network

LIF Location Interoperability Forum

MAP Mobile Application Part

MSC Mobile Switching Centre

MSISDN Mobile Subscriber ISDN Number

P-CSCF Proxy CSCF

PDG Packet Data Gateway

PLMN Public Land Mobile Network

PS Packet Switched

PUA Presence User Agent

RFC Request For Comments

SAI Service Area Identity

S-CSCF Serving CSCF

SGSN Serving GPRS Support Node

SIP Session Initiation Protocol

SMS Short Message Service

UE User Equipment

URL Uniform Resource Locator

WAP Wireless Access Protocol

WLAN Wireless Local Area Network

WML Wireless Markup Language

WV Wireless Village