3 Definitions and abbreviations

29.2723GPPEvolved Packet System (EPS)Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocolRelease 17TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP 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 3GPP TR 21.905 [1].

CSG subscription data from CSS: It identifies the CSG subscription data that a MME or a SGSN has received from a CSS for a subscriber identified by its IMSI.

CSG subscription data from HSS: It identifies the CSG subscription data that a MME or a SGSN has received from a HSS for a subscriber identified by its IMSI.

3.2 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].

AVP Attribute Value Pair

C Conditional

CSS CSG Subscriber Server

DCN Dedicated Core Network

DRMP Diameter Routing Message Priority

DSCP Differentiated Services Code Point

EIR Equipment Identity Register

ESM EPS Session Management

HSS Home Subscriber Server

IAB Integrated Access and Backhaul

IE Information Element

LAA Licensed Assisted Access

LWA LTE/WLAN Aggregation

LWIP LTE/WLAN Radio Level Integration with IPsec Tunnel

M Mandatory

MME Mobility Management Entity

NR New Radio

O Optional

ODB Operator Determined Barring

SCEF Service Capability Exposure Function

URRP-MME User Reachability Request Parameter for MME

URPP-SGSN User Reachability Request Parameter for SGSN